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class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/111004462/Geochemistry_of_the_brachiopod_Hemithiris_psittacea_from_the_Canadian_Arctic_Implications_for_high_latitude_palaeoclimate_studies"><img alt="Research paper thumbnail of Geochemistry of the brachiopod Hemithiris psittacea from the Canadian Arctic: Implications for high latitude palaeoclimate studies" class="work-thumbnail" src="https://attachments.academia-assets.com/108645315/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/111004462/Geochemistry_of_the_brachiopod_Hemithiris_psittacea_from_the_Canadian_Arctic_Implications_for_high_latitude_palaeoclimate_studies">Geochemistry of the brachiopod Hemithiris psittacea from the Canadian Arctic: Implications for high latitude palaeoclimate studies</a></div><div class="wp-workCard_item"><span>Chemical Geology</span><span>, 2017</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="671f38f3d405109b925ad7d847cfdc05" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":108645315,"asset_id":111004462,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/108645315/download_file?st=MTczMzIxNzEyNiw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="111004462"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa 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container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 111004462, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "671f38f3d405109b925ad7d847cfdc05" } } $('.js-work-strip[data-work-id=111004462]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":111004462,"title":"Geochemistry of the brachiopod Hemithiris psittacea from the Canadian Arctic: Implications for high latitude palaeoclimate studies","translated_title":"","metadata":{"publisher":"Elsevier BV","grobid_abstract":"Fossil shell material from high palaeo-latitudes is increasingly studied for environmental forcings specific to these latitudes and as sensitive archives of climate change. However, more detailed studies of modern analogues are necessary for putting findings into global and high latitude perspectives. Here we present δ 13 C and δ 18 O values, as well as Mg, Sr, Na, Mn and Fe contents for the rhynchonellide brachiopod Hemithiris psittacea from Friday Harbor, U.S.A. and twenty-five sites from Canada ranging in latitude from 48° to 71°N. Median Mn/Ca ratios are below 0.1 mmol/mol and Fe/Ca ratios are below 0.3 mmol/mol, with no strong correlation between ratios and no apparent geographical relationship. Mg/Ca and Sr/Ca ratios vary within relatively narrow limits and yield median ratios of 3.7 mmol/mol and 1.13 mmol/mol. Na/Ca ratios vary widely amongst the sites with median values ranging from 9 to 20 mmol/mol. Relatively uniform median δ 13 C values of +1.8 ± 0.6 ‰ (2 sd, n = 25) are observed for the Canadian sites, whereas at Friday Harbor the signature of 13 C depletion in local DIC is imprinted in the shell calcite. Median δ 18 O values of-0.5 to +2.7 ‰ are more variable than carbon isotope signatures and point to precipitation of shell material in seawater diluted by variable amounts of freshwater and affected by seasonal sea ice. Our results imply that robust elemental patterns and carbon isotope signatures of high latitude brachiopod fossils can be expected for most palaeogeographic situations. In contrast, δ 18 O signatures of shell material from high latitude marginal seas, particularly during glacial periods, would yield unreasonably high seawater temperature estimates unless the oxygen isotopic composition of the ambient water is accurately accounted for in palaeotemperature calculations.","publication_date":{"day":null,"month":null,"year":2017,"errors":{}},"publication_name":"Chemical Geology","grobid_abstract_attachment_id":108645315},"translated_abstract":null,"internal_url":"https://www.academia.edu/111004462/Geochemistry_of_the_brachiopod_Hemithiris_psittacea_from_the_Canadian_Arctic_Implications_for_high_latitude_palaeoclimate_studies","translated_internal_url":"","created_at":"2023-12-09T18:06:30.423-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":32498626,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":108645315,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/108645315/thumbnails/1.jpg","file_name":"j.chemgeo.2017.06.00720231210-1-j023fh.pdf","download_url":"https://www.academia.edu/attachments/108645315/download_file?st=MTczMzIxNzEyNiw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Geochemistry_of_the_brachiopod_Hemithiri.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/108645315/j.chemgeo.2017.06.00720231210-1-j023fh-libre.pdf?1702176665=\u0026response-content-disposition=attachment%3B+filename%3DGeochemistry_of_the_brachiopod_Hemithiri.pdf\u0026Expires=1733220726\u0026Signature=GMcCWJ88pWWl0nfS-gnSPOPKPEKatfxVs1PEzaASIKypWGJF77zK1RX36C7IIA-Xtna8392-~3VtDb9~-DzLfNfOYUTPdhrpStzMP~-UDg5O1MTPKEwUwj5l-AdchcP4GFuaGCzRtVWQ7X~xFPufVArQB08iBx-6f-ZLCSfi0xxxnACpJOEIx1GsivjZDopRJM91AhHZ~ry1~F8Wa4lp7IBKwZ0sdxj~Cs45t96tU-DNMNa3zBAsbxj5dgM48fppkXZCzFJwRqY~f4LQQG52VQ1850G5PkIszN2tJ1NIubFNbXndSCrFXktRhpfMHSMBOc~1KZ7ItNQ6CGbL35cSpQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Geochemistry_of_the_brachiopod_Hemithiris_psittacea_from_the_Canadian_Arctic_Implications_for_high_latitude_palaeoclimate_studies","translated_slug":"","page_count":43,"language":"en","content_type":"Work","owner":{"id":32498626,"first_name":"Uwe","middle_initials":null,"last_name":"Brand","page_name":"UweBrand","domain_name":"brocku","created_at":"2015-06-24T07:20:03.498-07:00","display_name":"Uwe Brand","url":"https://brocku.academia.edu/UweBrand"},"attachments":[{"id":108645315,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/108645315/thumbnails/1.jpg","file_name":"j.chemgeo.2017.06.00720231210-1-j023fh.pdf","download_url":"https://www.academia.edu/attachments/108645315/download_file?st=MTczMzIxNzEyNiw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Geochemistry_of_the_brachiopod_Hemithiri.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/108645315/j.chemgeo.2017.06.00720231210-1-j023fh-libre.pdf?1702176665=\u0026response-content-disposition=attachment%3B+filename%3DGeochemistry_of_the_brachiopod_Hemithiri.pdf\u0026Expires=1733220726\u0026Signature=GMcCWJ88pWWl0nfS-gnSPOPKPEKatfxVs1PEzaASIKypWGJF77zK1RX36C7IIA-Xtna8392-~3VtDb9~-DzLfNfOYUTPdhrpStzMP~-UDg5O1MTPKEwUwj5l-AdchcP4GFuaGCzRtVWQ7X~xFPufVArQB08iBx-6f-ZLCSfi0xxxnACpJOEIx1GsivjZDopRJM91AhHZ~ry1~F8Wa4lp7IBKwZ0sdxj~Cs45t96tU-DNMNa3zBAsbxj5dgM48fppkXZCzFJwRqY~f4LQQG52VQ1850G5PkIszN2tJ1NIubFNbXndSCrFXktRhpfMHSMBOc~1KZ7ItNQ6CGbL35cSpQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology"},{"id":407,"name":"Geochemistry","url":"https://www.academia.edu/Documents/in/Geochemistry"},{"id":16024,"name":"Chemical Geology","url":"https://www.academia.edu/Documents/in/Chemical_Geology"},{"id":68049,"name":"Arctic","url":"https://www.academia.edu/Documents/in/Arctic"},{"id":184467,"name":"Seawater","url":"https://www.academia.edu/Documents/in/Seawater"},{"id":205543,"name":"Calcite","url":"https://www.academia.edu/Documents/in/Calcite"},{"id":1407962,"name":"Latitude","url":"https://www.academia.edu/Documents/in/Latitude"}],"urls":[{"id":36775779,"url":"https://api.elsevier.com/content/article/PII:S0009254117303650?httpAccept=text/xml"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="101294725"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/101294725/Variation_in_brachiopod_microstructure_and_isotope_geochemistry_under_low_pH_ocean_acidification_conditions"><img alt="Research paper thumbnail of Variation in brachiopod microstructure and isotope geochemistry under low-pH–ocean acidification conditions" class="work-thumbnail" src="https://attachments.academia-assets.com/101875692/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/101294725/Variation_in_brachiopod_microstructure_and_isotope_geochemistry_under_low_pH_ocean_acidification_conditions">Variation in brachiopod microstructure and isotope geochemistry under low-pH–ocean acidification conditions</a></div><div class="wp-workCard_item"><span>Biogeosciences</span><span>, 2019</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="c4ce8385067d6e32b846b06c7c956062" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":101875692,"asset_id":101294725,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/101875692/download_file?st=MTczMzIxNzEyNiw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="101294725"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="101294725"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 101294725; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=101294725]").text(description); $(".js-view-count[data-work-id=101294725]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 101294725; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='101294725']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 101294725, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "c4ce8385067d6e32b846b06c7c956062" } } $('.js-work-strip[data-work-id=101294725]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":101294725,"title":"Variation in brachiopod microstructure and isotope geochemistry under low-pH–ocean acidification conditions","translated_title":"","metadata":{"publisher":"Copernicus GmbH","grobid_abstract":"In the last few decades and in the near future CO 2-induced ocean acidification is potentially a big threat to marine calcite-shelled animals (e.g. brachiopods, bivalves, corals and gastropods). Despite the great number of studies focusing on the effects of acidification on shell growth, metabolism, shell dissolution and shell repair, the consequences for biomineral formation remain poorly understood. Only a few studies have addressed the impact of ocean acidification on shell microstructure and geochemistry. In this study, a detailed microstructure and stable isotope geochemistry investigation was performed on nine adult brachiopod specimens of Magellania venosa (Dixon, 1789). These were grown in the natural environment as well as in controlled culturing experiments under different pH conditions (ranging from 7.35 to 8.15 ± 0.05) over different time intervals (214 to 335 days). Details of shell microstructural features, such as thickness of the primary layer, density and size of endopunctae and morphology of the basic structural unit of the secondary layer were analysed using scanning electron microscopy. Stable isotope compositions (δ 13 C and δ 18 O) were tested from the secondary shell layer along shell ontogenetic increments in both dorsal and ventral valves. Based on our comprehensive dataset, we observed that, under low-pH conditions, M. venosa produced a more organic-rich shell with higher density of and larger endopunctae, and smaller secondary layer fibres. Also, increasingly negative δ 13 C and δ 18 O values are recorded by the shell produced during culturing and are related to the CO 2 source in the culture setup. Both the microstructural changes and the stable isotope results are similar to observations on brachiopods from the fossil record and strongly support the value of brachiopods as robust archives of proxies for studying ocean acidification events in the geologic past.","publication_date":{"day":null,"month":null,"year":2019,"errors":{}},"publication_name":"Biogeosciences","grobid_abstract_attachment_id":101875692},"translated_abstract":null,"internal_url":"https://www.academia.edu/101294725/Variation_in_brachiopod_microstructure_and_isotope_geochemistry_under_low_pH_ocean_acidification_conditions","translated_internal_url":"","created_at":"2023-05-05T08:37:12.948-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":32498626,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":101875692,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/101875692/thumbnails/1.jpg","file_name":"bg-16-617-2019.pdf","download_url":"https://www.academia.edu/attachments/101875692/download_file?st=MTczMzIxNzEyNiw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Variation_in_brachiopod_microstructure_a.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/101875692/bg-16-617-2019-libre.pdf?1683302710=\u0026response-content-disposition=attachment%3B+filename%3DVariation_in_brachiopod_microstructure_a.pdf\u0026Expires=1733220726\u0026Signature=CQ3oeb76aVMID9O2FqlrvvEakgI1NIFZ4OdDBUL2u0iDsg8ynU07yL92NR07tu1m9VX9m30zeWmx~7-0VcmGopjJrhSB0mJuyiuIM3GAONPJZwR3Eq-y5ZZC9IL-hnrlRTno1U4b9PDRdIHdJro2SCru90jsGSwfdxfnp7MmlX9m7icgFXv88C0p8LwYEmvh2AIA3lPTD8p6U2OxHiIUvh-t8xDOmcQUTFIcEGnUuH9mNQRjG8IvGYG6XbgYZPKn31E9LVgaC~6vYSwvjBAkZU7iPVIciw9OVTK261yPwDpIkBH0lABrQXfwz71owJpUmIxrC0EIR7BpvFSyoq3RDg__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Variation_in_brachiopod_microstructure_and_isotope_geochemistry_under_low_pH_ocean_acidification_conditions","translated_slug":"","page_count":26,"language":"en","content_type":"Work","owner":{"id":32498626,"first_name":"Uwe","middle_initials":null,"last_name":"Brand","page_name":"UweBrand","domain_name":"brocku","created_at":"2015-06-24T07:20:03.498-07:00","display_name":"Uwe Brand","url":"https://brocku.academia.edu/UweBrand"},"attachments":[{"id":101875692,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/101875692/thumbnails/1.jpg","file_name":"bg-16-617-2019.pdf","download_url":"https://www.academia.edu/attachments/101875692/download_file?st=MTczMzIxNzEyNiw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Variation_in_brachiopod_microstructure_a.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/101875692/bg-16-617-2019-libre.pdf?1683302710=\u0026response-content-disposition=attachment%3B+filename%3DVariation_in_brachiopod_microstructure_a.pdf\u0026Expires=1733220726\u0026Signature=CQ3oeb76aVMID9O2FqlrvvEakgI1NIFZ4OdDBUL2u0iDsg8ynU07yL92NR07tu1m9VX9m30zeWmx~7-0VcmGopjJrhSB0mJuyiuIM3GAONPJZwR3Eq-y5ZZC9IL-hnrlRTno1U4b9PDRdIHdJro2SCru90jsGSwfdxfnp7MmlX9m7icgFXv88C0p8LwYEmvh2AIA3lPTD8p6U2OxHiIUvh-t8xDOmcQUTFIcEGnUuH9mNQRjG8IvGYG6XbgYZPKn31E9LVgaC~6vYSwvjBAkZU7iPVIciw9OVTK261yPwDpIkBH0lABrQXfwz71owJpUmIxrC0EIR7BpvFSyoq3RDg__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":400,"name":"Earth Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences"},{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology"},{"id":523,"name":"Chemistry","url":"https://www.academia.edu/Documents/in/Chemistry"},{"id":2161,"name":"Microstructure","url":"https://www.academia.edu/Documents/in/Microstructure"},{"id":29674,"name":"Isotope Geochemistry","url":"https://www.academia.edu/Documents/in/Isotope_Geochemistry"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences"},{"id":53314,"name":"GE","url":"https://www.academia.edu/Documents/in/GE"},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences"},{"id":68527,"name":"Ocean acidification","url":"https://www.academia.edu/Documents/in/Ocean_acidification"},{"id":151321,"name":"Biogeosciences","url":"https://www.academia.edu/Documents/in/Biogeosciences"},{"id":178355,"name":"Dissolution","url":"https://www.academia.edu/Documents/in/Dissolution"},{"id":205543,"name":"Calcite","url":"https://www.academia.edu/Documents/in/Calcite"},{"id":242199,"name":"Earth Surface Processes","url":"https://www.academia.edu/Documents/in/Earth_Surface_Processes"},{"id":422724,"name":"Shell Structure","url":"https://www.academia.edu/Documents/in/Shell_Structure"},{"id":2204361,"name":"Das","url":"https://www.academia.edu/Documents/in/Das"}],"urls":[{"id":31193312,"url":"https://bg.copernicus.org/articles/16/617/2019/bg-16-617-2019.pdf"}]}, dispatcherData: dispatcherData }); 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "8b047e94fa97deb546ebee7f516928af" } } $('.js-work-strip[data-work-id=90238694]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":90238694,"title":"Atmospheric oxygen of the Paleozoic","translated_title":"","metadata":{"publisher":"Elsevier BV","grobid_abstract":"The evolution of Earth's atmosphere is of extreme importance to the lithosphere, hydrosphere and biosphere. This is particularly true for the role the biosphere played in the inceptual formation of atmospheric oxygen, and subsequently in its potential role in the evolution of higher life forms. Quantifying the change in atmospheric oxygen with geologic time is extremely challenging, with the redox sensitive isotope and element models subject to contradictory outcomes. Here, we present a new approach in determining past atmospheres, by a) directly measuring (DM) the amount of atmospheric oxygen trapped in fluid-gas inclusions of primary and unaltered halite, and by b) using a back-calculation method (BCM) applied to trapped halite fluid inclusion gas contents subjected to post-depositional biogeochemical reactions to calculate the amount of atmospheric oxygen. On average (±standard error), atmospheric oxygen content during the latest Ediacaran was 17.4 ± 2.1% compiled from DM of 17.4 ± 1.3% and from BCM of 17.3 ± 2.9%. For the earliest Cambrian average oxygen was 19.3 ± 1.4% compiled from DM of 18.8 ± 1.5% and from BCM of 19.8 ± 1.3%. The oxygen content during the mid and late Ordovician was relatively invariant with 15.6 ± 1.8% [15.4 ± 1.4% (DM), 15.8 ± 2.2% (BCM)], and 16.2 ± 1.2% [15.7 ± 1.7% (DM), 16.6 ± 0.7% (BCM)], respectively. The relatively stable atmospheric oxygen levels continued into the Silurian of 15.9 ± 1.1% (12.9 ± 0.4 to 16.5%, DM; 14.3 ± 1.7 to 19.8 ± 2.1% BCM) except for a peak to about present levels during the late Silurian of 23.2 ± 1.9% (21.6% DM, 24.7 ± 3.7% BCM). Early Carboniferous atmospheric oxygen returned to relatively lower and invariant levels at about 15.3 ± 0.7 to 15.7 ± 1.0% (15.0%, 15.5 ± 0.1% DM, 9.4 ± 3.9 to 15.8 ± 1.9% BCM). Similarly, the average atmospheric oxygen content in fluid inclusion of halites from the late Permian was similar with 15.7 ± 1.3% with 16.9% (DM) to 14.5 ± 2.6% (BCM). Indeed, our study suggests that atmospheric oxygen was relatively constant for most of the Paleozoic at about 16.5% (±0.6 SE, ±2.2 SD). This puts our proxy result at odds with the values and trends suggested by the COPSE, GEOCARBSULF AND GEOCARBSULFOR models for the early Paleozoic atmospheric oxygen, and continues the discord with the GEOCARBSULF and GEOCARBULFOR models during the late Paleozoic.","publication_date":{"day":null,"month":null,"year":2021,"errors":{}},"publication_name":"Earth-Science Reviews","grobid_abstract_attachment_id":93856374},"translated_abstract":null,"internal_url":"https://www.academia.edu/90238694/Atmospheric_oxygen_of_the_Paleozoic","translated_internal_url":"","created_at":"2022-11-07T18:15:20.262-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":32498626,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":93856374,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/93856374/thumbnails/1.jpg","file_name":"1-s2.0-S0012825221000593-main.pdf","download_url":"https://www.academia.edu/attachments/93856374/download_file?st=MTczMzIxNzEyNiw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Atmospheric_oxygen_of_the_Paleozoic.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/93856374/1-s2.0-S0012825221000593-main-libre.pdf?1667874185=\u0026response-content-disposition=attachment%3B+filename%3DAtmospheric_oxygen_of_the_Paleozoic.pdf\u0026Expires=1733220726\u0026Signature=AkKHBNyihIu418-w2RKjPBFCH57S7Qh0EmxEdmd5wK5NnHerxmNmYcq65AmcRZ9hRPpRnkpr7URWpHwhKUXrbN1AcLt77n3zDxBOw4kR60IliFtaAYjEN8FfIxRyPAXC-bmR7JpTwLMSgk61uHZo6H8KwR2mwPWR~lTToWIzH1cMG42RLenV8h2Yzj4VD57ve78V2-WJQTRdVUBYLT~Ct1fiR1EtVCvpzPEpTe91w0k9nlwxtUD7m3Jpm9QquIjWFOw6et2DL8tMOW2MuEesKj9UD48kTs2aUIj9bnr76X6Y9Mt-C-gYqW7jRtYU8GH7QqH49bR9a7R5ycXXVZmGxw__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Atmospheric_oxygen_of_the_Paleozoic","translated_slug":"","page_count":14,"language":"en","content_type":"Work","owner":{"id":32498626,"first_name":"Uwe","middle_initials":null,"last_name":"Brand","page_name":"UweBrand","domain_name":"brocku","created_at":"2015-06-24T07:20:03.498-07:00","display_name":"Uwe Brand","url":"https://brocku.academia.edu/UweBrand"},"attachments":[{"id":93856374,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/93856374/thumbnails/1.jpg","file_name":"1-s2.0-S0012825221000593-main.pdf","download_url":"https://www.academia.edu/attachments/93856374/download_file?st=MTczMzIxNzEyNiw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Atmospheric_oxygen_of_the_Paleozoic.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/93856374/1-s2.0-S0012825221000593-main-libre.pdf?1667874185=\u0026response-content-disposition=attachment%3B+filename%3DAtmospheric_oxygen_of_the_Paleozoic.pdf\u0026Expires=1733220726\u0026Signature=AkKHBNyihIu418-w2RKjPBFCH57S7Qh0EmxEdmd5wK5NnHerxmNmYcq65AmcRZ9hRPpRnkpr7URWpHwhKUXrbN1AcLt77n3zDxBOw4kR60IliFtaAYjEN8FfIxRyPAXC-bmR7JpTwLMSgk61uHZo6H8KwR2mwPWR~lTToWIzH1cMG42RLenV8h2Yzj4VD57ve78V2-WJQTRdVUBYLT~Ct1fiR1EtVCvpzPEpTe91w0k9nlwxtUD7m3Jpm9QquIjWFOw6et2DL8tMOW2MuEesKj9UD48kTs2aUIj9bnr76X6Y9Mt-C-gYqW7jRtYU8GH7QqH49bR9a7R5ycXXVZmGxw__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":400,"name":"Earth Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences"},{"id":523,"name":"Chemistry","url":"https://www.academia.edu/Documents/in/Chemistry"},{"id":5769,"name":"Mass Spectrometry","url":"https://www.academia.edu/Documents/in/Mass_Spectrometry"},{"id":82911,"name":"fluid Inclusions","url":"https://www.academia.edu/Documents/in/fluid_Inclusions"},{"id":171492,"name":"Paleozoic","url":"https://www.academia.edu/Documents/in/Paleozoic"}],"urls":[{"id":25683240,"url":"https://api.elsevier.com/content/article/PII:S0012825221000593?httpAccept=text/xml"}]}, dispatcherData: dispatcherData }); 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "63b52e48b8048e5c98ff71a633b1ee12" } } $('.js-work-strip[data-work-id=90238693]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":90238693,"title":"Hydrothermal alteration of aragonitic biocarbonates: assessment of micro- and nanostructural dissolution–reprecipitation and constraints of diagenetic overprint from quantitative statistical grain-area analysis","translated_title":"","metadata":{"publisher":"Copernicus GmbH","grobid_abstract":"The assessment of diagenetic overprint on microstructural and geochemical data gained from fossil archives is of fundamental importance for understanding palaeoenvironments. The correct reconstruction of past environmental dynamics is only possible when pristine skeletons are unequivocally distinguished from altered skeletal elements. Our previous studies show (i) that replacement of biogenic carbonate by inorganic calcite occurs via an interfacecoupled dissolution-reprecipitation mechanism. (ii) A comprehensive understanding of alteration of the biogenic skeleton is only given when structural changes are assessed on both, the micrometre as well as on the nanometre scale. In the present contribution we investigate experimental hydrothermal alteration of six different modern biogenic carbonate materials to (i) assess their potential for withstanding diagenetic overprint and to (ii) find characteristics for the preservation of their microstructure in the fossil record. Experiments were performed at 175 • C with a 100 mM NaCl + 10 mM MgCl 2 alteration solution and lasted for up to 35 days. For each type of microstructure we (i) examine the evolution of biogenic carbonate replacement by inorganic calcite, (ii) highlight different stages of inorganic carbonate formation, (iii) explore microstructural changes at different degrees of alteration, and (iv) perform a statistical evaluation of microstructural data to highlight changes in crystallite size between the pristine and the altered skeletons. We find that alteration from biogenic aragonite to inorganic calcite proceeds along pathways where the fluid enters the material. It is fastest in hard tissues with an existing primary porosity and a biopolymer fabric within the skeleton that consists of a network of fibrils. The slowest alteration kinetics occurs when biogenic nacreous aragonite is replaced by inorganic calcite, irrespective of the mode of assembly of nacre tablets. For all investigated biogenic carbonates we distinguish the following intermediate stages of alteration: (i) decomposition of biopolymers and the associated formation of secondary porosity, (ii) homoepitactic overgrowth with preservation of the original phase leading to amalgama-Published by Copernicus Publications on behalf of the European Geosciences Union. 7452 L. A. Casella et al.: Hydrothermal alteration of aragonitic biocarbonates tion of neighbouring mineral units (i.e. recrystallization by grain growth eliminating grain boundaries), (iii) deletion of the original microstructure, however, at first, under retention of the original mineralogical phase, and (iv) replacement of both, the pristine microstructure and original phase with the newly formed abiogenic product. At the alteration front we find between newly formed calcite and reworked biogenic aragonite the formation of metastable Mg-rich carbonates with a calcite-type structure and compositions ranging from dolomitic to about 80 mol % magnesite. This high-Mg calcite seam shifts with the alteration front when the latter is displaced within the unaltered biogenic aragonite. For all investigated biocarbonate hard tissues we observe the destruction of the microstructure first, and, in a second step, the replacement of the original with the newly formed phase.","publication_date":{"day":null,"month":null,"year":2018,"errors":{}},"publication_name":"Biogeosciences","grobid_abstract_attachment_id":93856348},"translated_abstract":null,"internal_url":"https://www.academia.edu/90238693/Hydrothermal_alteration_of_aragonitic_biocarbonates_assessment_of_micro_and_nanostructural_dissolution_reprecipitation_and_constraints_of_diagenetic_overprint_from_quantitative_statistical_grain_area_analysis","translated_internal_url":"","created_at":"2022-11-07T18:15:20.027-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":32498626,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":93856348,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/93856348/thumbnails/1.jpg","file_name":"bg-15-7451-2018.pdf","download_url":"https://www.academia.edu/attachments/93856348/download_file?st=MTczMzIxNzEyNiw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Hydrothermal_alteration_of_aragonitic_bi.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/93856348/bg-15-7451-2018-libre.pdf?1667874177=\u0026response-content-disposition=attachment%3B+filename%3DHydrothermal_alteration_of_aragonitic_bi.pdf\u0026Expires=1733117005\u0026Signature=UZmRH1Clf~C5fMleUTlUrUVoesRGk8wJEYNLnS1Iv2Bx5k-~TapH8gpT3aI5n5stUeW9vz61Aa0cg2sqc7lCRnkXPM3L-hM1IvKpFMLjxFBNLWY~QVpUC0uJPEbqMxFQPjwNmB61v-BNgdx-5Ip0NNr7dw2f59Ydyg9ypewWpg1ZUWihcSN5acSCeG~BzsvKEtt38zH5ycAyUss7M0ZvnpMP-HfvALSVo3IFiJPGJuLuSPRHC7hYcnnpx37YJyR2VCBrc2LM8icUEj97yUOuazYxqx7qHWCP3FzQjHGjBzYpg817p9dJ-Z6wb-Lk5Hv1MtTbarvi4nZaMXoqKOh0yQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Hydrothermal_alteration_of_aragonitic_biocarbonates_assessment_of_micro_and_nanostructural_dissolution_reprecipitation_and_constraints_of_diagenetic_overprint_from_quantitative_statistical_grain_area_analysis","translated_slug":"","page_count":34,"language":"en","content_type":"Work","owner":{"id":32498626,"first_name":"Uwe","middle_initials":null,"last_name":"Brand","page_name":"UweBrand","domain_name":"brocku","created_at":"2015-06-24T07:20:03.498-07:00","display_name":"Uwe 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Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences"},{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology"},{"id":414,"name":"Mineralogy","url":"https://www.academia.edu/Documents/in/Mineralogy"},{"id":523,"name":"Chemistry","url":"https://www.academia.edu/Documents/in/Chemistry"},{"id":20278,"name":"Diagenesis","url":"https://www.academia.edu/Documents/in/Diagenesis"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences"},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences"},{"id":91258,"name":"Carbonate","url":"https://www.academia.edu/Documents/in/Carbonate"},{"id":151321,"name":"Biogeosciences","url":"https://www.academia.edu/Documents/in/Biogeosciences"},{"id":178355,"name":"Dissolution","url":"https://www.academia.edu/Documents/in/Dissolution"},{"id":205543,"name":"Calcite","url":"https://www.academia.edu/Documents/in/Calcite"},{"id":300085,"name":"Aragonite","url":"https://www.academia.edu/Documents/in/Aragonite"},{"id":437569,"name":"Paleontología","url":"https://www.academia.edu/Documents/in/Paleontolog%C3%ADa"},{"id":461895,"name":"Mineral","url":"https://www.academia.edu/Documents/in/Mineral"},{"id":626780,"name":"Mineralogía","url":"https://www.academia.edu/Documents/in/Mineralog%C3%ADa"}],"urls":[{"id":25683239,"url":"https://bg.copernicus.org/articles/15/7451/2018/bg-15-7451-2018.pdf"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="90238692"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/90238692/Calcite_fibre_formation_in_modern_brachiopod_shells"><img alt="Research paper thumbnail of Calcite fibre formation in modern brachiopod shells" class="work-thumbnail" src="https://attachments.academia-assets.com/93856346/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/90238692/Calcite_fibre_formation_in_modern_brachiopod_shells">Calcite fibre formation in modern brachiopod shells</a></div><div class="wp-workCard_item"><span>Scientific Reports</span><span>, 2019</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="5a0b6764f2d629980730cb4165ba5b03" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":93856346,"asset_id":90238692,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/93856346/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="90238692"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item 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{"id":90238692,"title":"Calcite fibre formation in modern brachiopod shells","translated_title":"","metadata":{"publisher":"Springer Science and Business Media LLC","grobid_abstract":"The fibrous calcite layer of modern brachiopod shells is a hybrid composite material and forms a substantial part of the hard tissue. We investigated how cells of the outer mantle epithelium (OME) secrete calcite material and generate the characteristic fibre morphology and composite microstructure of the shell. We employed AFM, FE-SEM, and TEM imaging of embedded/etched, chemically fixed/ decalcified and high-pressure frozen/freeze substituted samples. Calcite fibres are secreted by outer mantle epithelium (OME) cells. Biometric analysis of TEM micrographs indicates that about 50% of these cells are attached via hemidesmosomes to an extracellular organic membrane present at the proximal, convex surface of the fibres. At these sites, mineral secretion is not active. Instead, ion transport from OME cells to developing fibres occurs at regions of closest contact between cells and fibres, however only at sites where the extracellular membrane at the proximal fibre surface is not developed yet. Fibre formation requires the cooperation of several adjacent OME cells. It is a spatially and temporally changing process comprising of detachment of OME cells from the extracellular organic membrane, mineral secretion at detachment sites, termination of secretion with formation of the extracellular organic membrane, and attachment of cells via hemidesmosomes to this membrane.","publication_date":{"day":null,"month":null,"year":2019,"errors":{}},"publication_name":"Scientific Reports","grobid_abstract_attachment_id":93856346},"translated_abstract":null,"internal_url":"https://www.academia.edu/90238692/Calcite_fibre_formation_in_modern_brachiopod_shells","translated_internal_url":"","created_at":"2022-11-07T18:15:19.793-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":32498626,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":93856346,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/93856346/thumbnails/1.jpg","file_name":"s41598-018-36959-z.pdf","download_url":"https://www.academia.edu/attachments/93856346/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Calcite_fibre_formation_in_modern_brachi.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/93856346/s41598-018-36959-z-libre.pdf?1667874174=\u0026response-content-disposition=attachment%3B+filename%3DCalcite_fibre_formation_in_modern_brachi.pdf\u0026Expires=1733220727\u0026Signature=gzO2mNAXPGbOk4RTaSgD-V1nfq8nLcmCvttLHS9BwxZKb-IQBA4oSNrzuWkuRza5WEfZwxZ2PS1Og9yASylwGrO06Wm6b9r7k~OwicNNfheCg2VC9RcD-gsjsxtea9poGUakhNRiD8XYMW-LsaPzkZRXlHkjYjiw1MwIO63jdcmHxWH-EUTZ49rCBJWYZi-CvxVs3-Td10UosrpaPfO2p5RO35tbNP3xwo57-lt1RMUHqzli3UbfztpvYj1ohfJb604OH~Xw5flEwKm9mnA8zTV-yQypZ-gOwVfT-LQUiL0NfH-hAneK8B2thT51Em2lct0~Sz6SOOEe3LqEPtIzAQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Calcite_fibre_formation_in_modern_brachiopod_shells","translated_slug":"","page_count":15,"language":"en","content_type":"Work","owner":{"id":32498626,"first_name":"Uwe","middle_initials":null,"last_name":"Brand","page_name":"UweBrand","domain_name":"brocku","created_at":"2015-06-24T07:20:03.498-07:00","display_name":"Uwe Brand","url":"https://brocku.academia.edu/UweBrand"},"attachments":[{"id":93856346,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/93856346/thumbnails/1.jpg","file_name":"s41598-018-36959-z.pdf","download_url":"https://www.academia.edu/attachments/93856346/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Calcite_fibre_formation_in_modern_brachi.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/93856346/s41598-018-36959-z-libre.pdf?1667874174=\u0026response-content-disposition=attachment%3B+filename%3DCalcite_fibre_formation_in_modern_brachi.pdf\u0026Expires=1733220727\u0026Signature=gzO2mNAXPGbOk4RTaSgD-V1nfq8nLcmCvttLHS9BwxZKb-IQBA4oSNrzuWkuRza5WEfZwxZ2PS1Og9yASylwGrO06Wm6b9r7k~OwicNNfheCg2VC9RcD-gsjsxtea9poGUakhNRiD8XYMW-LsaPzkZRXlHkjYjiw1MwIO63jdcmHxWH-EUTZ49rCBJWYZi-CvxVs3-Td10UosrpaPfO2p5RO35tbNP3xwo57-lt1RMUHqzli3UbfztpvYj1ohfJb604OH~Xw5flEwKm9mnA8zTV-yQypZ-gOwVfT-LQUiL0NfH-hAneK8B2thT51Em2lct0~Sz6SOOEe3LqEPtIzAQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"},{"id":93856347,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/93856347/thumbnails/1.jpg","file_name":"s41598-018-36959-z.pdf","download_url":"https://www.academia.edu/attachments/93856347/download_file","bulk_download_file_name":"Calcite_fibre_formation_in_modern_brachi.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/93856347/s41598-018-36959-z-libre.pdf?1667874162=\u0026response-content-disposition=attachment%3B+filename%3DCalcite_fibre_formation_in_modern_brachi.pdf\u0026Expires=1733220727\u0026Signature=eSl71nEFMJWRtqZh2e~t7KOv8B~9JSTOV1G6WyIcBHG36a1JcB3A8dkHduqCTiytClYdkVqWQKixBBNZ8UPWSKXlfXcCDyNelgEqPIVCWrJQJOPiVlRZXbronYHlHA4DxbfrgRozn74vcmx8DqOKz51aKMeCOpyFP1E9aODCU6NvT9maxJ7dab5YodpBBTLNI6dlDc3YhnepS31~jCUqrPdpSEwGORCb5GIZhMT23tXiz2cDsy2Lz2ZAAlbxeePW4GatNcPQ-lQuGHPQGBzTjfrrFktCIOjCcHk~6pJTNjt7jYe2dnDjsHRoGAVWhvlUFhGu9YeU6ys7EgWQsuGbug__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":523,"name":"Chemistry","url":"https://www.academia.edu/Documents/in/Chemistry"},{"id":21662,"name":"Brachiopods (Biology)","url":"https://www.academia.edu/Documents/in/Brachiopods_Biology_"},{"id":26327,"name":"Medicine","url":"https://www.academia.edu/Documents/in/Medicine"},{"id":46654,"name":"Plates and shells","url":"https://www.academia.edu/Documents/in/Plates_and_shells"},{"id":205543,"name":"Calcite","url":"https://www.academia.edu/Documents/in/Calcite"}],"urls":[{"id":25683238,"url":"http://www.nature.com/articles/s41598-018-36959-z.pdf"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="90238691"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/90238691/Provenance_and_burial_history_of_cement_in_sandstones_of_the_Northbrook_Formation_Carboniferous_western_Newfoundland_Canada_A_geochemical_investigation"><img alt="Research paper thumbnail of Provenance and burial history of cement in sandstones of the Northbrook Formation (Carboniferous), western Newfoundland, Canada: A geochemical investigation" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/90238691/Provenance_and_burial_history_of_cement_in_sandstones_of_the_Northbrook_Formation_Carboniferous_western_Newfoundland_Canada_A_geochemical_investigation">Provenance and burial history of cement in sandstones of the Northbrook Formation (Carboniferous), western Newfoundland, Canada: A geochemical investigation</a></div><div class="wp-workCard_item"><span>Sedimentary Geology</span><span>, 2014</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">ABSTRACT The Carboniferous North Brook Formation (western Newfoundland, Canada) consisting of flu...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">ABSTRACT The Carboniferous North Brook Formation (western Newfoundland, Canada) consisting of fluvial/lacustrine arkosic litharenites has undergone two cementation cycles. The first cycle comprises chlorite followed by minor quartz and calcite. Mono-phase aqueous fluid inclusions hosted in first-cycle calcite reflect precipitation in a near-surface meteoric diagenetic environment. Chlorite linings and cements generally inhibit precipitation of quartz overgrowths, thus maintaining open pore space until a subsequent cycle when temperatures are within the oil window. The second cycle comprises chlorite followed by calcite which hosts two-phase fluid inclusions with homogenization temperatures ranging from 91.7 to 120.7 °C and salinity from 6.3 to 8.4 eq. wt.% NaCl. These results suggest conditions in-line with a deep burial environment, and calculated fluid inclusion isochors stipulate a trapping temperature of around 132 °C and pressure of 500 bar (5 km hydrostatic pressure) for these cements. Quantitative fluid inclusion gas analysis further confirms that fluids were sourced from evolved meteoric fluids with fluctuating CO2:CH4:N2 ratios. Manganese analysis confirms an oxidizing environment for the first-cycle calcite cement but a reducing one for the infilling second-cycle cement. Both cements have similar REE signatures, are slightly LREE-depleted, and during migration the fluids were influenced by the sedimentary host rock. Although there is a prominent negative Ce anomaly, there is no Eu anomaly in the cements. The δ13C and δ18O values are mostly in the negative in the calcite cement hosted in the coarse-grained clastics, which were influenced by migrating brines and/or hydrocarbons. In the diagenetic history of this sedimentary basin, the first cementation event is characterized by chlorite, quartz and calcite emplaced under shallow, oxidizing meteoric water conditions and appropriate temperatures. A diagenetic hiatus ensued until the units were more deeply buried. At this stage, a second generation of cement characterized by minor chlorite and major calcite, infilled vugs and voids under higher temperatures equivalent to the upper limit of the oil window and 5 km burial depth. The lack of porosity precludes the North Brook Formation from being a petroleum reservoir although limited petroleum may have been sourced during the geologic history.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="90238691"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="90238691"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 90238691; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=90238691]").text(description); $(".js-view-count[data-work-id=90238691]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 90238691; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='90238691']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 90238691, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=90238691]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":90238691,"title":"Provenance and burial history of cement in sandstones of the Northbrook Formation (Carboniferous), western Newfoundland, Canada: A geochemical investigation","translated_title":"","metadata":{"abstract":"ABSTRACT The Carboniferous North Brook Formation (western Newfoundland, Canada) consisting of fluvial/lacustrine arkosic litharenites has undergone two cementation cycles. The first cycle comprises chlorite followed by minor quartz and calcite. Mono-phase aqueous fluid inclusions hosted in first-cycle calcite reflect precipitation in a near-surface meteoric diagenetic environment. Chlorite linings and cements generally inhibit precipitation of quartz overgrowths, thus maintaining open pore space until a subsequent cycle when temperatures are within the oil window. The second cycle comprises chlorite followed by calcite which hosts two-phase fluid inclusions with homogenization temperatures ranging from 91.7 to 120.7 °C and salinity from 6.3 to 8.4 eq. wt.% NaCl. These results suggest conditions in-line with a deep burial environment, and calculated fluid inclusion isochors stipulate a trapping temperature of around 132 °C and pressure of 500 bar (5 km hydrostatic pressure) for these cements. Quantitative fluid inclusion gas analysis further confirms that fluids were sourced from evolved meteoric fluids with fluctuating CO2:CH4:N2 ratios. Manganese analysis confirms an oxidizing environment for the first-cycle calcite cement but a reducing one for the infilling second-cycle cement. Both cements have similar REE signatures, are slightly LREE-depleted, and during migration the fluids were influenced by the sedimentary host rock. Although there is a prominent negative Ce anomaly, there is no Eu anomaly in the cements. The δ13C and δ18O values are mostly in the negative in the calcite cement hosted in the coarse-grained clastics, which were influenced by migrating brines and/or hydrocarbons. In the diagenetic history of this sedimentary basin, the first cementation event is characterized by chlorite, quartz and calcite emplaced under shallow, oxidizing meteoric water conditions and appropriate temperatures. A diagenetic hiatus ensued until the units were more deeply buried. At this stage, a second generation of cement characterized by minor chlorite and major calcite, infilled vugs and voids under higher temperatures equivalent to the upper limit of the oil window and 5 km burial depth. The lack of porosity precludes the North Brook Formation from being a petroleum reservoir although limited petroleum may have been sourced during the geologic history.","publisher":"Elsevier BV","publication_date":{"day":null,"month":null,"year":2014,"errors":{}},"publication_name":"Sedimentary Geology"},"translated_abstract":"ABSTRACT The Carboniferous North Brook Formation (western Newfoundland, Canada) consisting of fluvial/lacustrine arkosic litharenites has undergone two cementation cycles. The first cycle comprises chlorite followed by minor quartz and calcite. Mono-phase aqueous fluid inclusions hosted in first-cycle calcite reflect precipitation in a near-surface meteoric diagenetic environment. Chlorite linings and cements generally inhibit precipitation of quartz overgrowths, thus maintaining open pore space until a subsequent cycle when temperatures are within the oil window. The second cycle comprises chlorite followed by calcite which hosts two-phase fluid inclusions with homogenization temperatures ranging from 91.7 to 120.7 °C and salinity from 6.3 to 8.4 eq. wt.% NaCl. These results suggest conditions in-line with a deep burial environment, and calculated fluid inclusion isochors stipulate a trapping temperature of around 132 °C and pressure of 500 bar (5 km hydrostatic pressure) for these cements. Quantitative fluid inclusion gas analysis further confirms that fluids were sourced from evolved meteoric fluids with fluctuating CO2:CH4:N2 ratios. Manganese analysis confirms an oxidizing environment for the first-cycle calcite cement but a reducing one for the infilling second-cycle cement. Both cements have similar REE signatures, are slightly LREE-depleted, and during migration the fluids were influenced by the sedimentary host rock. Although there is a prominent negative Ce anomaly, there is no Eu anomaly in the cements. The δ13C and δ18O values are mostly in the negative in the calcite cement hosted in the coarse-grained clastics, which were influenced by migrating brines and/or hydrocarbons. In the diagenetic history of this sedimentary basin, the first cementation event is characterized by chlorite, quartz and calcite emplaced under shallow, oxidizing meteoric water conditions and appropriate temperatures. A diagenetic hiatus ensued until the units were more deeply buried. At this stage, a second generation of cement characterized by minor chlorite and major calcite, infilled vugs and voids under higher temperatures equivalent to the upper limit of the oil window and 5 km burial depth. The lack of porosity precludes the North Brook Formation from being a petroleum reservoir although limited petroleum may have been sourced during the geologic history.","internal_url":"https://www.academia.edu/90238691/Provenance_and_burial_history_of_cement_in_sandstones_of_the_Northbrook_Formation_Carboniferous_western_Newfoundland_Canada_A_geochemical_investigation","translated_internal_url":"","created_at":"2022-11-07T18:15:19.585-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":32498626,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"Provenance_and_burial_history_of_cement_in_sandstones_of_the_Northbrook_Formation_Carboniferous_western_Newfoundland_Canada_A_geochemical_investigation","translated_slug":"","page_count":null,"language":"en","content_type":"Work","owner":{"id":32498626,"first_name":"Uwe","middle_initials":null,"last_name":"Brand","page_name":"UweBrand","domain_name":"brocku","created_at":"2015-06-24T07:20:03.498-07:00","display_name":"Uwe Brand","url":"https://brocku.academia.edu/UweBrand"},"attachments":[],"research_interests":[{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology"},{"id":407,"name":"Geochemistry","url":"https://www.academia.edu/Documents/in/Geochemistry"},{"id":20278,"name":"Diagenesis","url":"https://www.academia.edu/Documents/in/Diagenesis"},{"id":82911,"name":"fluid Inclusions","url":"https://www.academia.edu/Documents/in/fluid_Inclusions"},{"id":156034,"name":"Sedimentary Geology","url":"https://www.academia.edu/Documents/in/Sedimentary_Geology"},{"id":205543,"name":"Calcite","url":"https://www.academia.edu/Documents/in/Calcite"},{"id":362688,"name":"Meteoric water","url":"https://www.academia.edu/Documents/in/Meteoric_water"},{"id":1567560,"name":"Sedimentary Rock","url":"https://www.academia.edu/Documents/in/Sedimentary_Rock"},{"id":3002760,"name":"Chlorite","url":"https://www.academia.edu/Documents/in/Chlorite"}],"urls":[{"id":25683237,"url":"https://api.elsevier.com/content/article/PII:S0037073813001929?httpAccept=text/xml"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="90238689"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/90238689/Oxygen_isotope_values_from_high_latitudes_Clues_for_Permian_sea_surface_temperature_gradients_and_Late_Palaeozoic_deglaciation"><img alt="Research paper thumbnail of Oxygen isotope values from high-latitudes: Clues for Permian sea-surface temperature gradients and Late Palaeozoic deglaciation" class="work-thumbnail" src="https://attachments.academia-assets.com/93856376/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/90238689/Oxygen_isotope_values_from_high_latitudes_Clues_for_Permian_sea_surface_temperature_gradients_and_Late_Palaeozoic_deglaciation">Oxygen isotope values from high-latitudes: Clues for Permian sea-surface temperature gradients and Late Palaeozoic deglaciation</a></div><div class="wp-workCard_item"><span>Palaeogeography, Palaeoclimatology, Palaeoecology</span><span>, 2008</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="0a4405f4f1c1bff136959ef42a9a0d4a" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":93856376,"asset_id":90238689,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/93856376/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="90238689"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="90238689"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 90238689; 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The waning of these ice sheets during the Early Permian led to discharge of 18 O-depleted ice-melt water into the oceans. This, coupled with rising seawater temperatures, resulted in a concomitant decline of about 2.5‰ in the δ 18 O of seawater, as recorded by brachiopod shells from low-latitude (b 30°) habitats. The transition from ice-to greenhouse conditions is reflected also in the oxygen isotope data of unaltered brachiopods and bivalves from high high-latitudes. Moreover, the high-latitude specimens have consistently more positive δ 18 O, by about 2.5‰, than their coeval low-latitude counterparts, suggesting a Permian sea-surface temperature (SST) gradient of about 9 to 12°C between tropical-subtropical (b 30°) and high southern (55 ± 10°) latitude localities, apparently irrespective of whether in a greenhouse or an icehouse mode. This Permian SST gradient is comparable to the modern SST gradient of about 14°C. 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="90238688"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/90238688/Hydrothermal_diagenesis_of_Paleozoic_seamount_carbonate_components"><img alt="Research paper thumbnail of Hydrothermal diagenesis of Paleozoic seamount carbonate components" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/90238688/Hydrothermal_diagenesis_of_Paleozoic_seamount_carbonate_components">Hydrothermal diagenesis of Paleozoic seamount carbonate components</a></div><div class="wp-workCard_item"><span>Chemical Geology</span><span>, 2010</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">We present geochemical results of Paleozoic carbonate components (brachiopods—biogenic low-Mg cal...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">We present geochemical results of Paleozoic carbonate components (brachiopods—biogenic low-Mg calcite: bLMC, crinoids—biogenic high-Mg calcite: bHMC and whole rock—admixture of aragonite and calcite: wrAC) from open ocean Permo-Carboniferous seamounts of Japan situated in the tropical mid-Panthalassic Ocean. The diagenetic history of these and other carbonate allochems was determined by visual/optical inspection of their external morphology and luminescence, by evaluation of</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="90238688"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="90238688"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 90238688; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=90238688]").text(description); $(".js-view-count[data-work-id=90238688]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 90238688; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='90238688']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 90238688, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=90238688]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":90238688,"title":"Hydrothermal diagenesis of Paleozoic seamount carbonate components","translated_title":"","metadata":{"abstract":"We present geochemical results of Paleozoic carbonate components (brachiopods—biogenic low-Mg calcite: bLMC, crinoids—biogenic high-Mg calcite: bHMC and whole rock—admixture of aragonite and calcite: wrAC) from open ocean Permo-Carboniferous seamounts of Japan situated in the tropical mid-Panthalassic Ocean. The diagenetic history of these and other carbonate allochems was determined by visual/optical inspection of their external morphology and luminescence, by evaluation of","publisher":"Elsevier BV","publication_date":{"day":null,"month":null,"year":2010,"errors":{}},"publication_name":"Chemical Geology"},"translated_abstract":"We present geochemical results of Paleozoic carbonate components (brachiopods—biogenic low-Mg calcite: bLMC, crinoids—biogenic high-Mg calcite: bHMC and whole rock—admixture of aragonite and calcite: wrAC) from open ocean Permo-Carboniferous seamounts of Japan situated in the tropical mid-Panthalassic Ocean. 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="84901407"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/84901407/Bathymetry_and_productivity_of_the_southern_Great_Basin_seaway_Nevada_USA_An_evaluation_of_isotope_and_trace_element_chemistry_in_mid_Carboniferous_and_modern_brachiopods"><img alt="Research paper thumbnail of Bathymetry and productivity of the southern Great Basin seaway, Nevada, USA: An evaluation of isotope and trace element chemistry in mid-Carboniferous and modern brachiopods" class="work-thumbnail" src="https://attachments.academia-assets.com/89769470/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/84901407/Bathymetry_and_productivity_of_the_southern_Great_Basin_seaway_Nevada_USA_An_evaluation_of_isotope_and_trace_element_chemistry_in_mid_Carboniferous_and_modern_brachiopods">Bathymetry and productivity of the southern Great Basin seaway, Nevada, USA: An evaluation of isotope and trace element chemistry in mid-Carboniferous and modern brachiopods</a></div><div class="wp-workCard_item"><span>Palaeogeography, Palaeoclimatology, Palaeoecology</span><span>, 2007</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="243610467e99a1c8b6eca03958dc01d2" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":89769470,"asset_id":84901407,"asset_type":"Work","button_location":"profile"}" 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$(".js-view-count[data-work-id=84901407]").text(description); $(".js-view-count[data-work-id=84901407]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 84901407; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='84901407']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 84901407, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "243610467e99a1c8b6eca03958dc01d2" } } $('.js-work-strip[data-work-id=84901407]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":84901407,"title":"Bathymetry and productivity of the southern Great Basin seaway, Nevada, USA: An evaluation of isotope and trace element chemistry in mid-Carboniferous and modern brachiopods","translated_title":"","metadata":{"publisher":"Elsevier BV","grobid_abstract":"The stable isotope and trace element chemistry of brachiopods from stratigraphically, paleontologically, and geochemically three coeval intervals about the mid-Carboniferous boundary in the Bird Spring Formation were evaluated for their potential of serving as proxies of bathymetry and productivity of the southern Great Basin seaway, an eastern arm of the Panthalassa Ocean. Oxygen isotopes delineate both spatial and temporal differences in values of brachiopods from the three coeval mid-Carboniferous sections. Based on pristine brachiopod δ 18 O values and supported by paleoecological information, water depth increased from Apex to Kane Springs Wash East to Arrow Canyon. In addition, there is also an increase in values from the latest Mississippian to the earliest Pennsylvanian suggesting a water temperature (cooling), a water depth (increase), and/or change in both of the habitat of the penecontemporaneous brachiopods. Analogous to values and trends observed in modern brachiopods, the Fe/Mn ratio of fossil counterparts may be a potential proxy of seawater productivity related to the micronutrient iron. Overall, the high ratios of Fe/Mn suggest highly productive waters for the southern Great Basin seaway, with somewhat reduced productivity during the earliest Pennsylvanian. In contrast, the carbon isotope values of the coeval material are relatively invariant with respect to productivity; trends similar to observations on modern carbonate allochems. Based on habitat and paleogeography, the Antler Orogenic Highlands west of the foreland basin are considered a potential source for the micronutrient iron enrichment of the carbonate platform shelf-edge environment. It is further postulated that upwelling currents, in part, which weakened from the latest Mississippian through to the earliest Pennsylvanian, may have transported the micronutrient iron onto the shelf/basin environments of the Bird Spring Formation of the southern Great Basin.","publication_date":{"day":null,"month":null,"year":2007,"errors":{}},"publication_name":"Palaeogeography, Palaeoclimatology, 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data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/81243525/Strontium_isotope_geochemistry_of_modern_and_ancient_archives_tracer_of_secular_change_in_ocean_chemistry"><img alt="Research paper thumbnail of Strontium isotope geochemistry of modern and ancient archives: tracer of secular change in ocean chemistry" class="work-thumbnail" src="https://attachments.academia-assets.com/87356233/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/81243525/Strontium_isotope_geochemistry_of_modern_and_ancient_archives_tracer_of_secular_change_in_ocean_chemistry">Strontium isotope geochemistry of modern and ancient archives: tracer of secular change in ocean chemistry</a></div><div class="wp-workCard_item"><span>Canadian Journal of Earth Sciences</span><span>, 2018</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Strontium isotopes of marine archives provide a significant means for tracing physical and chemic...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Strontium isotopes of marine archives provide a significant means for tracing physical and chemical processes operating over geologic time. Modern articulated brachiopods and halite samples were collected from all depths of the world’s main water bodies. Material from the Arctic, North and South Atlantic, North and South Pacific, Indian and Southern oceans, as well as Caribbean and Mediterranean seas provide baseline parameters for diagenetic screening and reconstruction of seawater curves. The Sr isotopic ratio of modern brachiopods is unobscured by latitude, depth, and biologic factors (Order, valves, and shell segment). However, there is a small but significant impact of external sources reflected by salinity and temperature on the Sr isotope ratio of modern brachiopods. We found a significant difference in 87Sr/86Sr of brachiopods from polar and temperate-tropical habitats (p = 0.001), which should be considered when working with deep-time archives. The average 87Sr/86Sr value o...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="db5a2567328afc95be6e4c177420a0f6" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":87356233,"asset_id":81243525,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/87356233/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="81243525"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="81243525"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 81243525; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=81243525]").text(description); $(".js-view-count[data-work-id=81243525]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 81243525; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='81243525']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 81243525, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "db5a2567328afc95be6e4c177420a0f6" } } $('.js-work-strip[data-work-id=81243525]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":81243525,"title":"Strontium isotope geochemistry of modern and ancient archives: tracer of secular change in ocean chemistry","translated_title":"","metadata":{"abstract":"Strontium isotopes of marine archives provide a significant means for tracing physical and chemical processes operating over geologic time. 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The average 87Sr/86Sr value o...","publisher":"Canadian Science Publishing","publication_date":{"day":null,"month":null,"year":2018,"errors":{}},"publication_name":"Canadian Journal of Earth Sciences"},"translated_abstract":"Strontium isotopes of marine archives provide a significant means for tracing physical and chemical processes operating over geologic time. Modern articulated brachiopods and halite samples were collected from all depths of the world’s main water bodies. Material from the Arctic, North and South Atlantic, North and South Pacific, Indian and Southern oceans, as well as Caribbean and Mediterranean seas provide baseline parameters for diagenetic screening and reconstruction of seawater curves. The Sr isotopic ratio of modern brachiopods is unobscured by latitude, depth, and biologic factors (Order, valves, and shell segment). However, there is a small but significant impact of external sources reflected by salinity and temperature on the Sr isotope ratio of modern brachiopods. We found a significant difference in 87Sr/86Sr of brachiopods from polar and temperate-tropical habitats (p = 0.001), which should be considered when working with deep-time archives. 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="64846925"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/64846925/Brachiopod_Based_Oxygen_Isotope_Thermometer_Update_and_Review"><img alt="Research paper thumbnail of Brachiopod-Based Oxygen-Isotope Thermometer: Update and Review" class="work-thumbnail" src="https://attachments.academia-assets.com/76691159/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/64846925/Brachiopod_Based_Oxygen_Isotope_Thermometer_Update_and_Review">Brachiopod-Based Oxygen-Isotope Thermometer: Update and Review</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">In the early 1950’s, McCrea and Epstein and co-workers laid the foundation for the oxygen isotope...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">In the early 1950’s, McCrea and Epstein and co-workers laid the foundation for the oxygen isotopebased thermometers. Many variations of the thermometer have been since formulated based on synthetic and biogenic carbonates. Overall, the use and application of oxygen isotope thermometers must consider and be specific as to the mineralogy, and whether it is synthetic, abiogenic or biogenic carbonate. Here, we propose an updated and refined oxygen-isotope thermometer based on a large database of articulated brachiopods from high to low latitudes, cold to warm and shallow to deep-water regimes. In general, brachiopodbased oxygen isotopes are offset from abiogenic calcite precipitated in thermodynamic equilibrium by about -1 ‰. They maintain this offset and that allows for the determination of robust ambient water temperatures over the full marine spectrum. Thus, the specific brachiopod-based oxygen-isotope thermometer applies, with few exceptions, to most modern articulated brachiopods, ...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="937800da71a3ba719eaf549c3d8f3718" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":76691159,"asset_id":64846925,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/76691159/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="64846925"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="64846925"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 64846925; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=64846925]").text(description); $(".js-view-count[data-work-id=64846925]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 64846925; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='64846925']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 64846925, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "937800da71a3ba719eaf549c3d8f3718" } } $('.js-work-strip[data-work-id=64846925]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":64846925,"title":"Brachiopod-Based Oxygen-Isotope Thermometer: Update and Review","translated_title":"","metadata":{"abstract":"In the early 1950’s, McCrea and Epstein and co-workers laid the foundation for the oxygen isotopebased thermometers. Many variations of the thermometer have been since formulated based on synthetic and biogenic carbonates. Overall, the use and application of oxygen isotope thermometers must consider and be specific as to the mineralogy, and whether it is synthetic, abiogenic or biogenic carbonate. Here, we propose an updated and refined oxygen-isotope thermometer based on a large database of articulated brachiopods from high to low latitudes, cold to warm and shallow to deep-water regimes. In general, brachiopodbased oxygen isotopes are offset from abiogenic calcite precipitated in thermodynamic equilibrium by about -1 ‰. They maintain this offset and that allows for the determination of robust ambient water temperatures over the full marine spectrum. Thus, the specific brachiopod-based oxygen-isotope thermometer applies, with few exceptions, to most modern articulated brachiopods, ...","ai_title_tag":"Brachiopod Oxygen-Isotope Thermometer: Update and Refinement","publication_date":{"day":null,"month":null,"year":2019,"errors":{}}},"translated_abstract":"In the early 1950’s, McCrea and Epstein and co-workers laid the foundation for the oxygen isotopebased thermometers. Many variations of the thermometer have been since formulated based on synthetic and biogenic carbonates. Overall, the use and application of oxygen isotope thermometers must consider and be specific as to the mineralogy, and whether it is synthetic, abiogenic or biogenic carbonate. Here, we propose an updated and refined oxygen-isotope thermometer based on a large database of articulated brachiopods from high to low latitudes, cold to warm and shallow to deep-water regimes. In general, brachiopodbased oxygen isotopes are offset from abiogenic calcite precipitated in thermodynamic equilibrium by about -1 ‰. They maintain this offset and that allows for the determination of robust ambient water temperatures over the full marine spectrum. Thus, the specific brachiopod-based oxygen-isotope thermometer applies, with few exceptions, to most modern articulated brachiopods, ...","internal_url":"https://www.academia.edu/64846925/Brachiopod_Based_Oxygen_Isotope_Thermometer_Update_and_Review","translated_internal_url":"","created_at":"2021-12-17T07:28:45.997-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":32498626,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":76691159,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/76691159/thumbnails/1.jpg","file_name":"brand_20et_20al_20RIPS.pdf","download_url":"https://www.academia.edu/attachments/76691159/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Brachiopod_Based_Oxygen_Isotope_Thermome.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/76691159/brand_20et_20al_20RIPS-libre.pdf?1639757546=\u0026response-content-disposition=attachment%3B+filename%3DBrachiopod_Based_Oxygen_Isotope_Thermome.pdf\u0026Expires=1733220727\u0026Signature=g~UZk0XE36kllryADowlR5AQyddimqFC9tudzmFCX42GfdSkHbr9JdS3olsEzmqyhbk8fJTm~uFzfLvTkrz7Y0IcXWNXEQ3mHr5xG~DqwwwjUYVo0ylrweLf7MHd~5SOT6Ng9993yONLBhBkpBMOPxVf3t59ZUl9ZTAG8WKo448fpZ~M~5bzVsbz9sl10aq83isBFHM2MVbxQsrDGKCRe6XRCo1t7nVFzhrr0DCjcoRYHSLyetKE1I7UjoNuhpberMSWusvFTgXi0RGcTJCirlF~DUS6t9F7FyaSDo~qsHQEqF3hc1ZWNffUGPnWGBtMA9SZxP8Fm7OrcKzUwBwroA__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Brachiopod_Based_Oxygen_Isotope_Thermometer_Update_and_Review","translated_slug":"","page_count":14,"language":"en","content_type":"Work","owner":{"id":32498626,"first_name":"Uwe","middle_initials":null,"last_name":"Brand","page_name":"UweBrand","domain_name":"brocku","created_at":"2015-06-24T07:20:03.498-07:00","display_name":"Uwe Brand","url":"https://brocku.academia.edu/UweBrand"},"attachments":[{"id":76691159,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/76691159/thumbnails/1.jpg","file_name":"brand_20et_20al_20RIPS.pdf","download_url":"https://www.academia.edu/attachments/76691159/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Brachiopod_Based_Oxygen_Isotope_Thermome.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/76691159/brand_20et_20al_20RIPS-libre.pdf?1639757546=\u0026response-content-disposition=attachment%3B+filename%3DBrachiopod_Based_Oxygen_Isotope_Thermome.pdf\u0026Expires=1733220727\u0026Signature=g~UZk0XE36kllryADowlR5AQyddimqFC9tudzmFCX42GfdSkHbr9JdS3olsEzmqyhbk8fJTm~uFzfLvTkrz7Y0IcXWNXEQ3mHr5xG~DqwwwjUYVo0ylrweLf7MHd~5SOT6Ng9993yONLBhBkpBMOPxVf3t59ZUl9ZTAG8WKo448fpZ~M~5bzVsbz9sl10aq83isBFHM2MVbxQsrDGKCRe6XRCo1t7nVFzhrr0DCjcoRYHSLyetKE1I7UjoNuhpberMSWusvFTgXi0RGcTJCirlF~DUS6t9F7FyaSDo~qsHQEqF3hc1ZWNffUGPnWGBtMA9SZxP8Fm7OrcKzUwBwroA__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[],"urls":[{"id":15321201,"url":"https://air.unimi.it/retrieve/handle/2434/700111/1376426/brand%20et%20al%20RIPS.pdf"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="64846923"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/64846923/A_Sampling_Strategy_for_Recent_and_Fossil_Brachiopods_Selecting_the_Optimal_Shell_Segment_for_Geochemical_Analyses"><img alt="Research paper thumbnail of A Sampling Strategy for Recent and Fossil Brachiopods: Selecting the Optimal Shell Segment for Geochemical Analyses" class="work-thumbnail" src="https://attachments.academia-assets.com/76691160/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/64846923/A_Sampling_Strategy_for_Recent_and_Fossil_Brachiopods_Selecting_the_Optimal_Shell_Segment_for_Geochemical_Analyses">A Sampling Strategy for Recent and Fossil Brachiopods: Selecting the Optimal Shell Segment for Geochemical Analyses</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Recent and fossil brachiopod shells have a long record as biomineral archives for (palaeo)climati...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Recent and fossil brachiopod shells have a long record as biomineral archives for (palaeo)climatic and (palaeo)environmental reconstructions, as they lack or exhibit limited vital effects in their calcite shell and generally are quite resistant to diagenetic alteration. Despite this, only few studies address the issue of identifying the best or optimal part of the shell for geochemical analyses. We investigated the link between ontogeny and geochemical signatures recorded in different parts of the shell. To reach this aim, we analysed the elemental (Ca, Mg, Sr, Na) and stable isotope (δ18O, δ13C) compositions of five recent brachiopod species (Magellania venosa, Liothyrella uva, Aerothyris kerguelensis, Liothyrella neozelanica and Gryphus vitreus), spanning broad geographical and environmental ranges (Chile, Antarctica, Indian Ocean, New Zealand and Italy) and having different shell layer successions (two-layer and three-layer shells). We observed similar patterns in the ventral and...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="f4b5f95b2794ff0c6257abfce4a659ef" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":76691160,"asset_id":64846923,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/76691160/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="64846923"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="64846923"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 64846923; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=64846923]").text(description); $(".js-view-count[data-work-id=64846923]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 64846923; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='64846923']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 64846923, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "f4b5f95b2794ff0c6257abfce4a659ef" } } $('.js-work-strip[data-work-id=64846923]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":64846923,"title":"A Sampling Strategy for Recent and Fossil Brachiopods: Selecting the Optimal Shell Segment for Geochemical Analyses","translated_title":"","metadata":{"abstract":"Recent and fossil brachiopod shells have a long record as biomineral archives for (palaeo)climatic and (palaeo)environmental reconstructions, as they lack or exhibit limited vital effects in their calcite shell and generally are quite resistant to diagenetic alteration. Despite this, only few studies address the issue of identifying the best or optimal part of the shell for geochemical analyses. We investigated the link between ontogeny and geochemical signatures recorded in different parts of the shell. To reach this aim, we analysed the elemental (Ca, Mg, Sr, Na) and stable isotope (δ18O, δ13C) compositions of five recent brachiopod species (Magellania venosa, Liothyrella uva, Aerothyris kerguelensis, Liothyrella neozelanica and Gryphus vitreus), spanning broad geographical and environmental ranges (Chile, Antarctica, Indian Ocean, New Zealand and Italy) and having different shell layer successions (two-layer and three-layer shells). We observed similar patterns in the ventral and...","publication_date":{"day":null,"month":null,"year":2018,"errors":{}}},"translated_abstract":"Recent and fossil brachiopod shells have a long record as biomineral archives for (palaeo)climatic and (palaeo)environmental reconstructions, as they lack or exhibit limited vital effects in their calcite shell and generally are quite resistant to diagenetic alteration. Despite this, only few studies address the issue of identifying the best or optimal part of the shell for geochemical analyses. We investigated the link between ontogeny and geochemical signatures recorded in different parts of the shell. To reach this aim, we analysed the elemental (Ca, Mg, Sr, Na) and stable isotope (δ18O, δ13C) compositions of five recent brachiopod species (Magellania venosa, Liothyrella uva, Aerothyris kerguelensis, Liothyrella neozelanica and Gryphus vitreus), spanning broad geographical and environmental ranges (Chile, Antarctica, Indian Ocean, New Zealand and Italy) and having different shell layer successions (two-layer and three-layer shells). We observed similar patterns in the ventral and...","internal_url":"https://www.academia.edu/64846923/A_Sampling_Strategy_for_Recent_and_Fossil_Brachiopods_Selecting_the_Optimal_Shell_Segment_for_Geochemical_Analyses","translated_internal_url":"","created_at":"2021-12-17T07:28:45.771-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":32498626,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":76691160,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/76691160/thumbnails/1.jpg","file_name":"Romanin_et_al_2018_supp.pdf","download_url":"https://www.academia.edu/attachments/76691160/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"A_Sampling_Strategy_for_Recent_and_Fossi.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/76691160/Romanin_et_al_2018_supp-libre.pdf?1639757538=\u0026response-content-disposition=attachment%3B+filename%3DA_Sampling_Strategy_for_Recent_and_Fossi.pdf\u0026Expires=1733220727\u0026Signature=VmvzzYecjkMnMdPhghOTtBPRO3HZ5aMwqdVlhezGhVpEmeJ~H0fxrFJnx-wrsgMMn0hBTVdwkbZ2Vm~pNBJzVcplDaM5GRO9gmrC6VSI1imlMecr7OTu8bz1mE1rF~uT7QJfa6x-kmApju9hKaM9ZHcmoakDV2dRfAD6ti2PEBmYmDQQw0TGqq5Q-u5QNPsNlZpBjMpGq0LKLuVNVf0T4-T5clG3Z-FcevhSWLhKEcOSpQpNm~1abEQjRR6GMx-YNPaqiZWVxi7dn9fszvnHPjPHdj9Fdj~HAAnd2xao2n9pW4PgGDEyIHLHRvw1DKRvntV7JCnoGU6DK0ERP7xlTg__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"A_Sampling_Strategy_for_Recent_and_Fossil_Brachiopods_Selecting_the_Optimal_Shell_Segment_for_Geochemical_Analyses","translated_slug":"","page_count":4,"language":"en","content_type":"Work","owner":{"id":32498626,"first_name":"Uwe","middle_initials":null,"last_name":"Brand","page_name":"UweBrand","domain_name":"brocku","created_at":"2015-06-24T07:20:03.498-07:00","display_name":"Uwe Brand","url":"https://brocku.academia.edu/UweBrand"},"attachments":[{"id":76691160,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/76691160/thumbnails/1.jpg","file_name":"Romanin_et_al_2018_supp.pdf","download_url":"https://www.academia.edu/attachments/76691160/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"A_Sampling_Strategy_for_Recent_and_Fossi.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/76691160/Romanin_et_al_2018_supp-libre.pdf?1639757538=\u0026response-content-disposition=attachment%3B+filename%3DA_Sampling_Strategy_for_Recent_and_Fossi.pdf\u0026Expires=1733220727\u0026Signature=VmvzzYecjkMnMdPhghOTtBPRO3HZ5aMwqdVlhezGhVpEmeJ~H0fxrFJnx-wrsgMMn0hBTVdwkbZ2Vm~pNBJzVcplDaM5GRO9gmrC6VSI1imlMecr7OTu8bz1mE1rF~uT7QJfa6x-kmApju9hKaM9ZHcmoakDV2dRfAD6ti2PEBmYmDQQw0TGqq5Q-u5QNPsNlZpBjMpGq0LKLuVNVf0T4-T5clG3Z-FcevhSWLhKEcOSpQpNm~1abEQjRR6GMx-YNPaqiZWVxi7dn9fszvnHPjPHdj9Fdj~HAAnd2xao2n9pW4PgGDEyIHLHRvw1DKRvntV7JCnoGU6DK0ERP7xlTg__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"},{"id":76691162,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/76691162/thumbnails/1.jpg","file_name":"Romanin_et_al_2018_supp.pdf","download_url":"https://www.academia.edu/attachments/76691162/download_file","bulk_download_file_name":"A_Sampling_Strategy_for_Recent_and_Fossi.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/76691162/Romanin_et_al_2018_supp-libre.pdf?1639757538=\u0026response-content-disposition=attachment%3B+filename%3DA_Sampling_Strategy_for_Recent_and_Fossi.pdf\u0026Expires=1733220727\u0026Signature=OOjizu5-SKkIfhPjd3FMKu91KkUHAJEs73YpOZryKQL-7~C0K5mMd6WqF-8p0FX6I4czVP-qjjAz6eosLvIHBJUYOXJIBtGHM-1phAzcvySFhIBkw2TbqssA2WgMJeyff40s7cdAbpvXo7RF2C9Ojte3G8Uu~MpRTvrcVgPwm2V~lxFxNXKNZ4obLHmIn~tSnRpdCBa~OCQ~bPhlNG~zWKPjQj70hjTvvQP8rFFk0KXbJRI7SCuyqV~2UNN5Ic2avUcY2eEEVArtmanhmVKGPFNacaGb0I5b0kR24Hj0zvIqz~5cf9Q6sdZowidvKYuk-6eLWt3UAk3wnfwTWt6T1Q__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[],"urls":[{"id":15321199,"url":"http://epic.awi.de/47297/2/Romanin_et_al_2018_supp.pdf"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="64846920"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/64846920/Archival_biogenic_micro_and_nanostructure_data_analysis_Signatures_of_diagenetic_systems"><img alt="Research paper thumbnail of Archival biogenic micro- and nanostructure data analysis: Signatures of diagenetic systems" class="work-thumbnail" src="https://attachments.academia-assets.com/76691310/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/64846920/Archival_biogenic_micro_and_nanostructure_data_analysis_Signatures_of_diagenetic_systems">Archival biogenic micro- and nanostructure data analysis: Signatures of diagenetic systems</a></div><div class="wp-workCard_item"><span>Data in brief</span><span>, 2018</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The present data in brief article provides additional data and information to our research articl...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">The present data in brief article provides additional data and information to our research article &quot;Micro- and nanostructures reflect the degree of diagenetic alteration in modern and fossil brachiopod shell calcite: a multi-analytical screening approach (CL, FE-SEM, AFM, EBSD)&quot; [1] (Casella et al.). We present fibre morphology, nano- and microstructure, as well as calcite crystal orientations and textures found in pristine, experimentally altered (hydrothermal and thermal), and diagenetically overprinted brachiopod shells. Combination of the screening tools AFM, FE-SEM, and EBSD allows to observe a significant change in microstructural and textural features with an increasing degree of laboratory-based and naturally occurring diagenetic alteration. Amalgamation of neighbouring fibres was observed on the micrometre scale level, whereas progressive decomposition of biopolymers in the shells and fusion of nanoparticulate calcite crystals was detected on the nanometre scale. ...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="00f4dee59bdf3876600e4eb75499917c" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":76691310,"asset_id":64846920,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/76691310/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="64846920"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="64846920"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 64846920; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=64846920]").text(description); $(".js-view-count[data-work-id=64846920]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 64846920; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='64846920']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 64846920, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "00f4dee59bdf3876600e4eb75499917c" } } $('.js-work-strip[data-work-id=64846920]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":64846920,"title":"Archival biogenic micro- and nanostructure data analysis: Signatures of diagenetic systems","translated_title":"","metadata":{"abstract":"The present data in brief article provides additional data and information to our research article \u0026quot;Micro- and nanostructures reflect the degree of diagenetic alteration in modern and fossil brachiopod shell calcite: a multi-analytical screening approach (CL, FE-SEM, AFM, EBSD)\u0026quot; [1] (Casella et al.). We present fibre morphology, nano- and microstructure, as well as calcite crystal orientations and textures found in pristine, experimentally altered (hydrothermal and thermal), and diagenetically overprinted brachiopod shells. Combination of the screening tools AFM, FE-SEM, and EBSD allows to observe a significant change in microstructural and textural features with an increasing degree of laboratory-based and naturally occurring diagenetic alteration. Amalgamation of neighbouring fibres was observed on the micrometre scale level, whereas progressive decomposition of biopolymers in the shells and fusion of nanoparticulate calcite crystals was detected on the nanometre scale. ...","publication_date":{"day":null,"month":null,"year":2018,"errors":{}},"publication_name":"Data in brief"},"translated_abstract":"The present data in brief article provides additional data and information to our research article \u0026quot;Micro- and nanostructures reflect the degree of diagenetic alteration in modern and fossil brachiopod shell calcite: a multi-analytical screening approach (CL, FE-SEM, AFM, EBSD)\u0026quot; [1] (Casella et al.). We present fibre morphology, nano- and microstructure, as well as calcite crystal orientations and textures found in pristine, experimentally altered (hydrothermal and thermal), and diagenetically overprinted brachiopod shells. Combination of the screening tools AFM, FE-SEM, and EBSD allows to observe a significant change in microstructural and textural features with an increasing degree of laboratory-based and naturally occurring diagenetic alteration. Amalgamation of neighbouring fibres was observed on the micrometre scale level, whereas progressive decomposition of biopolymers in the shells and fusion of nanoparticulate calcite crystals was detected on the nanometre scale. ...","internal_url":"https://www.academia.edu/64846920/Archival_biogenic_micro_and_nanostructure_data_analysis_Signatures_of_diagenetic_systems","translated_internal_url":"","created_at":"2021-12-17T07:28:45.618-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":32498626,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":76691310,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/76691310/thumbnails/1.jpg","file_name":"Casella.pdf","download_url":"https://www.academia.edu/attachments/76691310/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Archival_biogenic_micro_and_nanostructur.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/76691310/Casella-libre.pdf?1639757530=\u0026response-content-disposition=attachment%3B+filename%3DArchival_biogenic_micro_and_nanostructur.pdf\u0026Expires=1733220727\u0026Signature=XqcvoYqCx~~UPgmTi8kaVnQFSVjPGy~ZCoug-Hhw-p78cGIdZELAQLGZX7STA742Vf2P0xLHKGnPgexmdTceNnmWRNnpMDW2X1HYu~K-CcA7QMdAR1hlBKCy1xf4ryahD2HzCe95gGPyehEoVGsZJ--YLmr4Ro-ybxCAlvVlOytDu1Uz9jbaGDBBKarE7oVPdcHoM8voxSMdo91KXuwXiCK~Jw0bz-YhFhdgLhFbl7tHAjM6l25fA20fHoqnPG54Tv5zehO7v9HSMsIrLHzgPua23PLa~620P4wxC3Lls6Qd6klv11oU6nD6R~srdYYBAlBcQYijJyr3HbfpfPddag__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Archival_biogenic_micro_and_nanostructure_data_analysis_Signatures_of_diagenetic_systems","translated_slug":"","page_count":13,"language":"en","content_type":"Work","owner":{"id":32498626,"first_name":"Uwe","middle_initials":null,"last_name":"Brand","page_name":"UweBrand","domain_name":"brocku","created_at":"2015-06-24T07:20:03.498-07:00","display_name":"Uwe Brand","url":"https://brocku.academia.edu/UweBrand"},"attachments":[{"id":76691310,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/76691310/thumbnails/1.jpg","file_name":"Casella.pdf","download_url":"https://www.academia.edu/attachments/76691310/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Archival_biogenic_micro_and_nanostructur.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/76691310/Casella-libre.pdf?1639757530=\u0026response-content-disposition=attachment%3B+filename%3DArchival_biogenic_micro_and_nanostructur.pdf\u0026Expires=1733220727\u0026Signature=XqcvoYqCx~~UPgmTi8kaVnQFSVjPGy~ZCoug-Hhw-p78cGIdZELAQLGZX7STA742Vf2P0xLHKGnPgexmdTceNnmWRNnpMDW2X1HYu~K-CcA7QMdAR1hlBKCy1xf4ryahD2HzCe95gGPyehEoVGsZJ--YLmr4Ro-ybxCAlvVlOytDu1Uz9jbaGDBBKarE7oVPdcHoM8voxSMdo91KXuwXiCK~Jw0bz-YhFhdgLhFbl7tHAjM6l25fA20fHoqnPG54Tv5zehO7v9HSMsIrLHzgPua23PLa~620P4wxC3Lls6Qd6klv11oU6nD6R~srdYYBAlBcQYijJyr3HbfpfPddag__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":511,"name":"Materials Science","url":"https://www.academia.edu/Documents/in/Materials_Science"},{"id":26327,"name":"Medicine","url":"https://www.academia.edu/Documents/in/Medicine"}],"urls":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="64846919"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/64846919/Mapping_of_recent_brachiopod_microstructure_A_tool_for_environmental_studies"><img alt="Research paper thumbnail of Mapping of recent brachiopod microstructure: A tool for environmental studies" class="work-thumbnail" src="https://attachments.academia-assets.com/76691311/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/64846919/Mapping_of_recent_brachiopod_microstructure_A_tool_for_environmental_studies">Mapping of recent brachiopod microstructure: A tool for environmental studies</a></div><div class="wp-workCard_item"><span>Journal of structural biology</span><span>, Jan 23, 2017</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Shells of brachiopods are excellent archives for environmental reconstructions in the recent and ...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Shells of brachiopods are excellent archives for environmental reconstructions in the recent and distant past as their microstructure and geochemistry respond to climate and environmental forcings. We studied the morphology and size of the basic structural unit, the secondary layer fibre, of the shells of several extant brachiopod taxa to derive a model correlating microstructural patterns to environmental conditions. Twenty-one adult specimens of six recent brachiopod species adapted to different environmental conditions, from Antarctica, to New Zealand, to the Mediterranean Sea, were chosen for microstructural analysis using SEM, TEM and EBSD. We conclude that: 1) there is no significant difference in the shape and size of the fibres between ventral and dorsal valves, 2) there is an ontogenetic trend in the shape and size of the fibres, as they become larger, wider, and flatter with increasing age. This indicates that the fibrous layer produced in the later stages of growth, which...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="f7863f113e922a75905e2f67862d9659" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":76691311,"asset_id":64846919,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/76691311/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="64846919"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="64846919"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 64846919; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=64846919]").text(description); $(".js-view-count[data-work-id=64846919]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 64846919; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='64846919']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 64846919, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "f7863f113e922a75905e2f67862d9659" } } $('.js-work-strip[data-work-id=64846919]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":64846919,"title":"Mapping of recent brachiopod microstructure: A tool for environmental studies","translated_title":"","metadata":{"abstract":"Shells of brachiopods are excellent archives for environmental reconstructions in the recent and distant past as their microstructure and geochemistry respond to climate and environmental forcings. We studied the morphology and size of the basic structural unit, the secondary layer fibre, of the shells of several extant brachiopod taxa to derive a model correlating microstructural patterns to environmental conditions. Twenty-one adult specimens of six recent brachiopod species adapted to different environmental conditions, from Antarctica, to New Zealand, to the Mediterranean Sea, were chosen for microstructural analysis using SEM, TEM and EBSD. We conclude that: 1) there is no significant difference in the shape and size of the fibres between ventral and dorsal valves, 2) there is an ontogenetic trend in the shape and size of the fibres, as they become larger, wider, and flatter with increasing age. This indicates that the fibrous layer produced in the later stages of growth, which...","ai_title_tag":"Brachiopod Microstructure as a Tool for Environmental Reconstruction","publication_date":{"day":23,"month":1,"year":2017,"errors":{}},"publication_name":"Journal of structural biology"},"translated_abstract":"Shells of brachiopods are excellent archives for environmental reconstructions in the recent and distant past as their microstructure and geochemistry respond to climate and environmental forcings. We studied the morphology and size of the basic structural unit, the secondary layer fibre, of the shells of several extant brachiopod taxa to derive a model correlating microstructural patterns to environmental conditions. Twenty-one adult specimens of six recent brachiopod species adapted to different environmental conditions, from Antarctica, to New Zealand, to the Mediterranean Sea, were chosen for microstructural analysis using SEM, TEM and EBSD. We conclude that: 1) there is no significant difference in the shape and size of the fibres between ventral and dorsal valves, 2) there is an ontogenetic trend in the shape and size of the fibres, as they become larger, wider, and flatter with increasing age. This indicates that the fibrous layer produced in the later stages of growth, which...","internal_url":"https://www.academia.edu/64846919/Mapping_of_recent_brachiopod_microstructure_A_tool_for_environmental_studies","translated_internal_url":"","created_at":"2021-12-17T07:28:45.477-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":32498626,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":76691311,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/76691311/thumbnails/1.jpg","file_name":"1-s2.0-S104784771730206X-main.pdf","download_url":"https://www.academia.edu/attachments/76691311/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Mapping_of_recent_brachiopod_microstruct.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/76691311/1-s2.0-S104784771730206X-main-libre.pdf?1639757531=\u0026response-content-disposition=attachment%3B+filename%3DMapping_of_recent_brachiopod_microstruct.pdf\u0026Expires=1733220727\u0026Signature=G9nkYUjwoDSydFyMzCqYz405gTYba-3pupBi6pX1u1ZWLbR9x774rvWykbh~XintDN-q3P86fSEs6H3I~7Xp9rAHMe2Z6YYgYdv~vuyLvuAttjw~AMQRHpQdVeBGSRtDBrYG8-rW9a81-zVTAik8chp444DUyT5lkt25Br9Xt2IWNDF1nbxMj8oq3vS3zfXEG38Rw7X1kMlGOcDGevhz6A1ymUo0a6hyQ4k1qAVZmOetdbnocuxHZI33va0DqgCnZMp1V9Vm~ov0bnH1QbT2yZ89cmzVEN79C7uIjG9zUM9xVv8pk9l2aAzD-kGQ2vnFd12CuS1l1CqeW9y4Nb7nqQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Mapping_of_recent_brachiopod_microstructure_A_tool_for_environmental_studies","translated_slug":"","page_count":16,"language":"en","content_type":"Work","owner":{"id":32498626,"first_name":"Uwe","middle_initials":null,"last_name":"Brand","page_name":"UweBrand","domain_name":"brocku","created_at":"2015-06-24T07:20:03.498-07:00","display_name":"Uwe Brand","url":"https://brocku.academia.edu/UweBrand"},"attachments":[{"id":76691311,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/76691311/thumbnails/1.jpg","file_name":"1-s2.0-S104784771730206X-main.pdf","download_url":"https://www.academia.edu/attachments/76691311/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Mapping_of_recent_brachiopod_microstruct.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/76691311/1-s2.0-S104784771730206X-main-libre.pdf?1639757531=\u0026response-content-disposition=attachment%3B+filename%3DMapping_of_recent_brachiopod_microstruct.pdf\u0026Expires=1733220727\u0026Signature=G9nkYUjwoDSydFyMzCqYz405gTYba-3pupBi6pX1u1ZWLbR9x774rvWykbh~XintDN-q3P86fSEs6H3I~7Xp9rAHMe2Z6YYgYdv~vuyLvuAttjw~AMQRHpQdVeBGSRtDBrYG8-rW9a81-zVTAik8chp444DUyT5lkt25Br9Xt2IWNDF1nbxMj8oq3vS3zfXEG38Rw7X1kMlGOcDGevhz6A1ymUo0a6hyQ4k1qAVZmOetdbnocuxHZI33va0DqgCnZMp1V9Vm~ov0bnH1QbT2yZ89cmzVEN79C7uIjG9zUM9xVv8pk9l2aAzD-kGQ2vnFd12CuS1l1CqeW9y4Nb7nqQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology"},{"id":2541,"name":"Structural Biology","url":"https://www.academia.edu/Documents/in/Structural_Biology"},{"id":7710,"name":"Biology","url":"https://www.academia.edu/Documents/in/Biology"},{"id":26327,"name":"Medicine","url":"https://www.academia.edu/Documents/in/Medicine"},{"id":1681026,"name":"Biochemistry and cell biology","url":"https://www.academia.edu/Documents/in/Biochemistry_and_cell_biology"}],"urls":[]}, dispatcherData: dispatcherData }); 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BV, Amsterdam Printed in The Netherlands ISOTOPIC AND ELEMENTAL GEOCHEMISTRY OF MARINE INVERT...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">... BV, Amsterdam Printed in The Netherlands ISOTOPIC AND ELEMENTAL GEOCHEMISTRY OF MARINE INVERTEBRATES FROM THE LATE QUATERNARY FORT LANGLEY FORMATION AND ... 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> </div><div class="profile--tab_content_container js-tab-pane tab-pane" data-section-id="3087026" id="papers"><div class="js-work-strip profile--work_container" data-work-id="111004462"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/111004462/Geochemistry_of_the_brachiopod_Hemithiris_psittacea_from_the_Canadian_Arctic_Implications_for_high_latitude_palaeoclimate_studies"><img alt="Research paper thumbnail of Geochemistry of the brachiopod Hemithiris psittacea from the Canadian Arctic: Implications for high latitude palaeoclimate studies" class="work-thumbnail" src="https://attachments.academia-assets.com/108645315/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/111004462/Geochemistry_of_the_brachiopod_Hemithiris_psittacea_from_the_Canadian_Arctic_Implications_for_high_latitude_palaeoclimate_studies">Geochemistry of the brachiopod Hemithiris psittacea from the Canadian Arctic: Implications for high latitude palaeoclimate studies</a></div><div class="wp-workCard_item"><span>Chemical Geology</span><span>, 2017</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="671f38f3d405109b925ad7d847cfdc05" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":108645315,"asset_id":111004462,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/108645315/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNiw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="111004462"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="111004462"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 111004462; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=111004462]").text(description); $(".js-view-count[data-work-id=111004462]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 111004462; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='111004462']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 111004462, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "671f38f3d405109b925ad7d847cfdc05" } } $('.js-work-strip[data-work-id=111004462]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":111004462,"title":"Geochemistry of the brachiopod Hemithiris psittacea from the Canadian Arctic: Implications for high latitude palaeoclimate studies","translated_title":"","metadata":{"publisher":"Elsevier BV","grobid_abstract":"Fossil shell material from high palaeo-latitudes is increasingly studied for environmental forcings specific to these latitudes and as sensitive archives of climate change. However, more detailed studies of modern analogues are necessary for putting findings into global and high latitude perspectives. Here we present δ 13 C and δ 18 O values, as well as Mg, Sr, Na, Mn and Fe contents for the rhynchonellide brachiopod Hemithiris psittacea from Friday Harbor, U.S.A. and twenty-five sites from Canada ranging in latitude from 48° to 71°N. Median Mn/Ca ratios are below 0.1 mmol/mol and Fe/Ca ratios are below 0.3 mmol/mol, with no strong correlation between ratios and no apparent geographical relationship. Mg/Ca and Sr/Ca ratios vary within relatively narrow limits and yield median ratios of 3.7 mmol/mol and 1.13 mmol/mol. Na/Ca ratios vary widely amongst the sites with median values ranging from 9 to 20 mmol/mol. Relatively uniform median δ 13 C values of +1.8 ± 0.6 ‰ (2 sd, n = 25) are observed for the Canadian sites, whereas at Friday Harbor the signature of 13 C depletion in local DIC is imprinted in the shell calcite. Median δ 18 O values of-0.5 to +2.7 ‰ are more variable than carbon isotope signatures and point to precipitation of shell material in seawater diluted by variable amounts of freshwater and affected by seasonal sea ice. Our results imply that robust elemental patterns and carbon isotope signatures of high latitude brachiopod fossils can be expected for most palaeogeographic situations. In contrast, δ 18 O signatures of shell material from high latitude marginal seas, particularly during glacial periods, would yield unreasonably high seawater temperature estimates unless the oxygen isotopic composition of the ambient water is accurately accounted for in palaeotemperature calculations.","publication_date":{"day":null,"month":null,"year":2017,"errors":{}},"publication_name":"Chemical Geology","grobid_abstract_attachment_id":108645315},"translated_abstract":null,"internal_url":"https://www.academia.edu/111004462/Geochemistry_of_the_brachiopod_Hemithiris_psittacea_from_the_Canadian_Arctic_Implications_for_high_latitude_palaeoclimate_studies","translated_internal_url":"","created_at":"2023-12-09T18:06:30.423-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":32498626,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":108645315,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/108645315/thumbnails/1.jpg","file_name":"j.chemgeo.2017.06.00720231210-1-j023fh.pdf","download_url":"https://www.academia.edu/attachments/108645315/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNiw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Geochemistry_of_the_brachiopod_Hemithiri.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/108645315/j.chemgeo.2017.06.00720231210-1-j023fh-libre.pdf?1702176665=\u0026response-content-disposition=attachment%3B+filename%3DGeochemistry_of_the_brachiopod_Hemithiri.pdf\u0026Expires=1733220726\u0026Signature=GMcCWJ88pWWl0nfS-gnSPOPKPEKatfxVs1PEzaASIKypWGJF77zK1RX36C7IIA-Xtna8392-~3VtDb9~-DzLfNfOYUTPdhrpStzMP~-UDg5O1MTPKEwUwj5l-AdchcP4GFuaGCzRtVWQ7X~xFPufVArQB08iBx-6f-ZLCSfi0xxxnACpJOEIx1GsivjZDopRJM91AhHZ~ry1~F8Wa4lp7IBKwZ0sdxj~Cs45t96tU-DNMNa3zBAsbxj5dgM48fppkXZCzFJwRqY~f4LQQG52VQ1850G5PkIszN2tJ1NIubFNbXndSCrFXktRhpfMHSMBOc~1KZ7ItNQ6CGbL35cSpQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Geochemistry_of_the_brachiopod_Hemithiris_psittacea_from_the_Canadian_Arctic_Implications_for_high_latitude_palaeoclimate_studies","translated_slug":"","page_count":43,"language":"en","content_type":"Work","owner":{"id":32498626,"first_name":"Uwe","middle_initials":null,"last_name":"Brand","page_name":"UweBrand","domain_name":"brocku","created_at":"2015-06-24T07:20:03.498-07:00","display_name":"Uwe Brand","url":"https://brocku.academia.edu/UweBrand"},"attachments":[{"id":108645315,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/108645315/thumbnails/1.jpg","file_name":"j.chemgeo.2017.06.00720231210-1-j023fh.pdf","download_url":"https://www.academia.edu/attachments/108645315/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNiw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Geochemistry_of_the_brachiopod_Hemithiri.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/108645315/j.chemgeo.2017.06.00720231210-1-j023fh-libre.pdf?1702176665=\u0026response-content-disposition=attachment%3B+filename%3DGeochemistry_of_the_brachiopod_Hemithiri.pdf\u0026Expires=1733220726\u0026Signature=GMcCWJ88pWWl0nfS-gnSPOPKPEKatfxVs1PEzaASIKypWGJF77zK1RX36C7IIA-Xtna8392-~3VtDb9~-DzLfNfOYUTPdhrpStzMP~-UDg5O1MTPKEwUwj5l-AdchcP4GFuaGCzRtVWQ7X~xFPufVArQB08iBx-6f-ZLCSfi0xxxnACpJOEIx1GsivjZDopRJM91AhHZ~ry1~F8Wa4lp7IBKwZ0sdxj~Cs45t96tU-DNMNa3zBAsbxj5dgM48fppkXZCzFJwRqY~f4LQQG52VQ1850G5PkIszN2tJ1NIubFNbXndSCrFXktRhpfMHSMBOc~1KZ7ItNQ6CGbL35cSpQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology"},{"id":407,"name":"Geochemistry","url":"https://www.academia.edu/Documents/in/Geochemistry"},{"id":16024,"name":"Chemical Geology","url":"https://www.academia.edu/Documents/in/Chemical_Geology"},{"id":68049,"name":"Arctic","url":"https://www.academia.edu/Documents/in/Arctic"},{"id":184467,"name":"Seawater","url":"https://www.academia.edu/Documents/in/Seawater"},{"id":205543,"name":"Calcite","url":"https://www.academia.edu/Documents/in/Calcite"},{"id":1407962,"name":"Latitude","url":"https://www.academia.edu/Documents/in/Latitude"}],"urls":[{"id":36775779,"url":"https://api.elsevier.com/content/article/PII:S0009254117303650?httpAccept=text/xml"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="101294725"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/101294725/Variation_in_brachiopod_microstructure_and_isotope_geochemistry_under_low_pH_ocean_acidification_conditions"><img alt="Research paper thumbnail of Variation in brachiopod microstructure and isotope geochemistry under low-pH–ocean acidification conditions" class="work-thumbnail" src="https://attachments.academia-assets.com/101875692/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/101294725/Variation_in_brachiopod_microstructure_and_isotope_geochemistry_under_low_pH_ocean_acidification_conditions">Variation in brachiopod microstructure and isotope geochemistry under low-pH–ocean acidification conditions</a></div><div class="wp-workCard_item"><span>Biogeosciences</span><span>, 2019</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="c4ce8385067d6e32b846b06c7c956062" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":101875692,"asset_id":101294725,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/101875692/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNiw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="101294725"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="101294725"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 101294725; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=101294725]").text(description); $(".js-view-count[data-work-id=101294725]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 101294725; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='101294725']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 101294725, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "c4ce8385067d6e32b846b06c7c956062" } } $('.js-work-strip[data-work-id=101294725]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":101294725,"title":"Variation in brachiopod microstructure and isotope geochemistry under low-pH–ocean acidification conditions","translated_title":"","metadata":{"publisher":"Copernicus GmbH","grobid_abstract":"In the last few decades and in the near future CO 2-induced ocean acidification is potentially a big threat to marine calcite-shelled animals (e.g. brachiopods, bivalves, corals and gastropods). Despite the great number of studies focusing on the effects of acidification on shell growth, metabolism, shell dissolution and shell repair, the consequences for biomineral formation remain poorly understood. Only a few studies have addressed the impact of ocean acidification on shell microstructure and geochemistry. In this study, a detailed microstructure and stable isotope geochemistry investigation was performed on nine adult brachiopod specimens of Magellania venosa (Dixon, 1789). These were grown in the natural environment as well as in controlled culturing experiments under different pH conditions (ranging from 7.35 to 8.15 ± 0.05) over different time intervals (214 to 335 days). Details of shell microstructural features, such as thickness of the primary layer, density and size of endopunctae and morphology of the basic structural unit of the secondary layer were analysed using scanning electron microscopy. Stable isotope compositions (δ 13 C and δ 18 O) were tested from the secondary shell layer along shell ontogenetic increments in both dorsal and ventral valves. Based on our comprehensive dataset, we observed that, under low-pH conditions, M. venosa produced a more organic-rich shell with higher density of and larger endopunctae, and smaller secondary layer fibres. Also, increasingly negative δ 13 C and δ 18 O values are recorded by the shell produced during culturing and are related to the CO 2 source in the culture setup. Both the microstructural changes and the stable isotope results are similar to observations on brachiopods from the fossil record and strongly support the value of brachiopods as robust archives of proxies for studying ocean acidification events in the geologic past.","publication_date":{"day":null,"month":null,"year":2019,"errors":{}},"publication_name":"Biogeosciences","grobid_abstract_attachment_id":101875692},"translated_abstract":null,"internal_url":"https://www.academia.edu/101294725/Variation_in_brachiopod_microstructure_and_isotope_geochemistry_under_low_pH_ocean_acidification_conditions","translated_internal_url":"","created_at":"2023-05-05T08:37:12.948-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":32498626,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":101875692,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/101875692/thumbnails/1.jpg","file_name":"bg-16-617-2019.pdf","download_url":"https://www.academia.edu/attachments/101875692/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNiw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Variation_in_brachiopod_microstructure_a.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/101875692/bg-16-617-2019-libre.pdf?1683302710=\u0026response-content-disposition=attachment%3B+filename%3DVariation_in_brachiopod_microstructure_a.pdf\u0026Expires=1733220726\u0026Signature=CQ3oeb76aVMID9O2FqlrvvEakgI1NIFZ4OdDBUL2u0iDsg8ynU07yL92NR07tu1m9VX9m30zeWmx~7-0VcmGopjJrhSB0mJuyiuIM3GAONPJZwR3Eq-y5ZZC9IL-hnrlRTno1U4b9PDRdIHdJro2SCru90jsGSwfdxfnp7MmlX9m7icgFXv88C0p8LwYEmvh2AIA3lPTD8p6U2OxHiIUvh-t8xDOmcQUTFIcEGnUuH9mNQRjG8IvGYG6XbgYZPKn31E9LVgaC~6vYSwvjBAkZU7iPVIciw9OVTK261yPwDpIkBH0lABrQXfwz71owJpUmIxrC0EIR7BpvFSyoq3RDg__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Variation_in_brachiopod_microstructure_and_isotope_geochemistry_under_low_pH_ocean_acidification_conditions","translated_slug":"","page_count":26,"language":"en","content_type":"Work","owner":{"id":32498626,"first_name":"Uwe","middle_initials":null,"last_name":"Brand","page_name":"UweBrand","domain_name":"brocku","created_at":"2015-06-24T07:20:03.498-07:00","display_name":"Uwe Brand","url":"https://brocku.academia.edu/UweBrand"},"attachments":[{"id":101875692,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/101875692/thumbnails/1.jpg","file_name":"bg-16-617-2019.pdf","download_url":"https://www.academia.edu/attachments/101875692/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNiw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Variation_in_brachiopod_microstructure_a.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/101875692/bg-16-617-2019-libre.pdf?1683302710=\u0026response-content-disposition=attachment%3B+filename%3DVariation_in_brachiopod_microstructure_a.pdf\u0026Expires=1733220726\u0026Signature=CQ3oeb76aVMID9O2FqlrvvEakgI1NIFZ4OdDBUL2u0iDsg8ynU07yL92NR07tu1m9VX9m30zeWmx~7-0VcmGopjJrhSB0mJuyiuIM3GAONPJZwR3Eq-y5ZZC9IL-hnrlRTno1U4b9PDRdIHdJro2SCru90jsGSwfdxfnp7MmlX9m7icgFXv88C0p8LwYEmvh2AIA3lPTD8p6U2OxHiIUvh-t8xDOmcQUTFIcEGnUuH9mNQRjG8IvGYG6XbgYZPKn31E9LVgaC~6vYSwvjBAkZU7iPVIciw9OVTK261yPwDpIkBH0lABrQXfwz71owJpUmIxrC0EIR7BpvFSyoq3RDg__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":400,"name":"Earth Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences"},{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology"},{"id":523,"name":"Chemistry","url":"https://www.academia.edu/Documents/in/Chemistry"},{"id":2161,"name":"Microstructure","url":"https://www.academia.edu/Documents/in/Microstructure"},{"id":29674,"name":"Isotope Geochemistry","url":"https://www.academia.edu/Documents/in/Isotope_Geochemistry"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences"},{"id":53314,"name":"GE","url":"https://www.academia.edu/Documents/in/GE"},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences"},{"id":68527,"name":"Ocean acidification","url":"https://www.academia.edu/Documents/in/Ocean_acidification"},{"id":151321,"name":"Biogeosciences","url":"https://www.academia.edu/Documents/in/Biogeosciences"},{"id":178355,"name":"Dissolution","url":"https://www.academia.edu/Documents/in/Dissolution"},{"id":205543,"name":"Calcite","url":"https://www.academia.edu/Documents/in/Calcite"},{"id":242199,"name":"Earth Surface Processes","url":"https://www.academia.edu/Documents/in/Earth_Surface_Processes"},{"id":422724,"name":"Shell Structure","url":"https://www.academia.edu/Documents/in/Shell_Structure"},{"id":2204361,"name":"Das","url":"https://www.academia.edu/Documents/in/Das"}],"urls":[{"id":31193312,"url":"https://bg.copernicus.org/articles/16/617/2019/bg-16-617-2019.pdf"}]}, dispatcherData: dispatcherData }); 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "8b047e94fa97deb546ebee7f516928af" } } $('.js-work-strip[data-work-id=90238694]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":90238694,"title":"Atmospheric oxygen of the Paleozoic","translated_title":"","metadata":{"publisher":"Elsevier BV","grobid_abstract":"The evolution of Earth's atmosphere is of extreme importance to the lithosphere, hydrosphere and biosphere. This is particularly true for the role the biosphere played in the inceptual formation of atmospheric oxygen, and subsequently in its potential role in the evolution of higher life forms. Quantifying the change in atmospheric oxygen with geologic time is extremely challenging, with the redox sensitive isotope and element models subject to contradictory outcomes. Here, we present a new approach in determining past atmospheres, by a) directly measuring (DM) the amount of atmospheric oxygen trapped in fluid-gas inclusions of primary and unaltered halite, and by b) using a back-calculation method (BCM) applied to trapped halite fluid inclusion gas contents subjected to post-depositional biogeochemical reactions to calculate the amount of atmospheric oxygen. On average (±standard error), atmospheric oxygen content during the latest Ediacaran was 17.4 ± 2.1% compiled from DM of 17.4 ± 1.3% and from BCM of 17.3 ± 2.9%. For the earliest Cambrian average oxygen was 19.3 ± 1.4% compiled from DM of 18.8 ± 1.5% and from BCM of 19.8 ± 1.3%. The oxygen content during the mid and late Ordovician was relatively invariant with 15.6 ± 1.8% [15.4 ± 1.4% (DM), 15.8 ± 2.2% (BCM)], and 16.2 ± 1.2% [15.7 ± 1.7% (DM), 16.6 ± 0.7% (BCM)], respectively. The relatively stable atmospheric oxygen levels continued into the Silurian of 15.9 ± 1.1% (12.9 ± 0.4 to 16.5%, DM; 14.3 ± 1.7 to 19.8 ± 2.1% BCM) except for a peak to about present levels during the late Silurian of 23.2 ± 1.9% (21.6% DM, 24.7 ± 3.7% BCM). Early Carboniferous atmospheric oxygen returned to relatively lower and invariant levels at about 15.3 ± 0.7 to 15.7 ± 1.0% (15.0%, 15.5 ± 0.1% DM, 9.4 ± 3.9 to 15.8 ± 1.9% BCM). Similarly, the average atmospheric oxygen content in fluid inclusion of halites from the late Permian was similar with 15.7 ± 1.3% with 16.9% (DM) to 14.5 ± 2.6% (BCM). Indeed, our study suggests that atmospheric oxygen was relatively constant for most of the Paleozoic at about 16.5% (±0.6 SE, ±2.2 SD). This puts our proxy result at odds with the values and trends suggested by the COPSE, GEOCARBSULF AND GEOCARBSULFOR models for the early Paleozoic atmospheric oxygen, and continues the discord with the GEOCARBSULF and GEOCARBULFOR models during the late Paleozoic.","publication_date":{"day":null,"month":null,"year":2021,"errors":{}},"publication_name":"Earth-Science Reviews","grobid_abstract_attachment_id":93856374},"translated_abstract":null,"internal_url":"https://www.academia.edu/90238694/Atmospheric_oxygen_of_the_Paleozoic","translated_internal_url":"","created_at":"2022-11-07T18:15:20.262-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":32498626,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":93856374,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/93856374/thumbnails/1.jpg","file_name":"1-s2.0-S0012825221000593-main.pdf","download_url":"https://www.academia.edu/attachments/93856374/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNiw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Atmospheric_oxygen_of_the_Paleozoic.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/93856374/1-s2.0-S0012825221000593-main-libre.pdf?1667874185=\u0026response-content-disposition=attachment%3B+filename%3DAtmospheric_oxygen_of_the_Paleozoic.pdf\u0026Expires=1733220726\u0026Signature=AkKHBNyihIu418-w2RKjPBFCH57S7Qh0EmxEdmd5wK5NnHerxmNmYcq65AmcRZ9hRPpRnkpr7URWpHwhKUXrbN1AcLt77n3zDxBOw4kR60IliFtaAYjEN8FfIxRyPAXC-bmR7JpTwLMSgk61uHZo6H8KwR2mwPWR~lTToWIzH1cMG42RLenV8h2Yzj4VD57ve78V2-WJQTRdVUBYLT~Ct1fiR1EtVCvpzPEpTe91w0k9nlwxtUD7m3Jpm9QquIjWFOw6et2DL8tMOW2MuEesKj9UD48kTs2aUIj9bnr76X6Y9Mt-C-gYqW7jRtYU8GH7QqH49bR9a7R5ycXXVZmGxw__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Atmospheric_oxygen_of_the_Paleozoic","translated_slug":"","page_count":14,"language":"en","content_type":"Work","owner":{"id":32498626,"first_name":"Uwe","middle_initials":null,"last_name":"Brand","page_name":"UweBrand","domain_name":"brocku","created_at":"2015-06-24T07:20:03.498-07:00","display_name":"Uwe Brand","url":"https://brocku.academia.edu/UweBrand"},"attachments":[{"id":93856374,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/93856374/thumbnails/1.jpg","file_name":"1-s2.0-S0012825221000593-main.pdf","download_url":"https://www.academia.edu/attachments/93856374/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNiw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Atmospheric_oxygen_of_the_Paleozoic.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/93856374/1-s2.0-S0012825221000593-main-libre.pdf?1667874185=\u0026response-content-disposition=attachment%3B+filename%3DAtmospheric_oxygen_of_the_Paleozoic.pdf\u0026Expires=1733220726\u0026Signature=AkKHBNyihIu418-w2RKjPBFCH57S7Qh0EmxEdmd5wK5NnHerxmNmYcq65AmcRZ9hRPpRnkpr7URWpHwhKUXrbN1AcLt77n3zDxBOw4kR60IliFtaAYjEN8FfIxRyPAXC-bmR7JpTwLMSgk61uHZo6H8KwR2mwPWR~lTToWIzH1cMG42RLenV8h2Yzj4VD57ve78V2-WJQTRdVUBYLT~Ct1fiR1EtVCvpzPEpTe91w0k9nlwxtUD7m3Jpm9QquIjWFOw6et2DL8tMOW2MuEesKj9UD48kTs2aUIj9bnr76X6Y9Mt-C-gYqW7jRtYU8GH7QqH49bR9a7R5ycXXVZmGxw__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":400,"name":"Earth Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences"},{"id":523,"name":"Chemistry","url":"https://www.academia.edu/Documents/in/Chemistry"},{"id":5769,"name":"Mass Spectrometry","url":"https://www.academia.edu/Documents/in/Mass_Spectrometry"},{"id":82911,"name":"fluid Inclusions","url":"https://www.academia.edu/Documents/in/fluid_Inclusions"},{"id":171492,"name":"Paleozoic","url":"https://www.academia.edu/Documents/in/Paleozoic"}],"urls":[{"id":25683240,"url":"https://api.elsevier.com/content/article/PII:S0012825221000593?httpAccept=text/xml"}]}, dispatcherData: dispatcherData }); 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "63b52e48b8048e5c98ff71a633b1ee12" } } $('.js-work-strip[data-work-id=90238693]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":90238693,"title":"Hydrothermal alteration of aragonitic biocarbonates: assessment of micro- and nanostructural dissolution–reprecipitation and constraints of diagenetic overprint from quantitative statistical grain-area analysis","translated_title":"","metadata":{"publisher":"Copernicus GmbH","grobid_abstract":"The assessment of diagenetic overprint on microstructural and geochemical data gained from fossil archives is of fundamental importance for understanding palaeoenvironments. The correct reconstruction of past environmental dynamics is only possible when pristine skeletons are unequivocally distinguished from altered skeletal elements. Our previous studies show (i) that replacement of biogenic carbonate by inorganic calcite occurs via an interfacecoupled dissolution-reprecipitation mechanism. (ii) A comprehensive understanding of alteration of the biogenic skeleton is only given when structural changes are assessed on both, the micrometre as well as on the nanometre scale. In the present contribution we investigate experimental hydrothermal alteration of six different modern biogenic carbonate materials to (i) assess their potential for withstanding diagenetic overprint and to (ii) find characteristics for the preservation of their microstructure in the fossil record. Experiments were performed at 175 • C with a 100 mM NaCl + 10 mM MgCl 2 alteration solution and lasted for up to 35 days. For each type of microstructure we (i) examine the evolution of biogenic carbonate replacement by inorganic calcite, (ii) highlight different stages of inorganic carbonate formation, (iii) explore microstructural changes at different degrees of alteration, and (iv) perform a statistical evaluation of microstructural data to highlight changes in crystallite size between the pristine and the altered skeletons. We find that alteration from biogenic aragonite to inorganic calcite proceeds along pathways where the fluid enters the material. It is fastest in hard tissues with an existing primary porosity and a biopolymer fabric within the skeleton that consists of a network of fibrils. The slowest alteration kinetics occurs when biogenic nacreous aragonite is replaced by inorganic calcite, irrespective of the mode of assembly of nacre tablets. For all investigated biogenic carbonates we distinguish the following intermediate stages of alteration: (i) decomposition of biopolymers and the associated formation of secondary porosity, (ii) homoepitactic overgrowth with preservation of the original phase leading to amalgama-Published by Copernicus Publications on behalf of the European Geosciences Union. 7452 L. A. Casella et al.: Hydrothermal alteration of aragonitic biocarbonates tion of neighbouring mineral units (i.e. recrystallization by grain growth eliminating grain boundaries), (iii) deletion of the original microstructure, however, at first, under retention of the original mineralogical phase, and (iv) replacement of both, the pristine microstructure and original phase with the newly formed abiogenic product. At the alteration front we find between newly formed calcite and reworked biogenic aragonite the formation of metastable Mg-rich carbonates with a calcite-type structure and compositions ranging from dolomitic to about 80 mol % magnesite. This high-Mg calcite seam shifts with the alteration front when the latter is displaced within the unaltered biogenic aragonite. For all investigated biocarbonate hard tissues we observe the destruction of the microstructure first, and, in a second step, the replacement of the original with the newly formed phase.","publication_date":{"day":null,"month":null,"year":2018,"errors":{}},"publication_name":"Biogeosciences","grobid_abstract_attachment_id":93856348},"translated_abstract":null,"internal_url":"https://www.academia.edu/90238693/Hydrothermal_alteration_of_aragonitic_biocarbonates_assessment_of_micro_and_nanostructural_dissolution_reprecipitation_and_constraints_of_diagenetic_overprint_from_quantitative_statistical_grain_area_analysis","translated_internal_url":"","created_at":"2022-11-07T18:15:20.027-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":32498626,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":93856348,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/93856348/thumbnails/1.jpg","file_name":"bg-15-7451-2018.pdf","download_url":"https://www.academia.edu/attachments/93856348/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Hydrothermal_alteration_of_aragonitic_bi.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/93856348/bg-15-7451-2018-libre.pdf?1667874177=\u0026response-content-disposition=attachment%3B+filename%3DHydrothermal_alteration_of_aragonitic_bi.pdf\u0026Expires=1733117005\u0026Signature=UZmRH1Clf~C5fMleUTlUrUVoesRGk8wJEYNLnS1Iv2Bx5k-~TapH8gpT3aI5n5stUeW9vz61Aa0cg2sqc7lCRnkXPM3L-hM1IvKpFMLjxFBNLWY~QVpUC0uJPEbqMxFQPjwNmB61v-BNgdx-5Ip0NNr7dw2f59Ydyg9ypewWpg1ZUWihcSN5acSCeG~BzsvKEtt38zH5ycAyUss7M0ZvnpMP-HfvALSVo3IFiJPGJuLuSPRHC7hYcnnpx37YJyR2VCBrc2LM8icUEj97yUOuazYxqx7qHWCP3FzQjHGjBzYpg817p9dJ-Z6wb-Lk5Hv1MtTbarvi4nZaMXoqKOh0yQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Hydrothermal_alteration_of_aragonitic_biocarbonates_assessment_of_micro_and_nanostructural_dissolution_reprecipitation_and_constraints_of_diagenetic_overprint_from_quantitative_statistical_grain_area_analysis","translated_slug":"","page_count":34,"language":"en","content_type":"Work","owner":{"id":32498626,"first_name":"Uwe","middle_initials":null,"last_name":"Brand","page_name":"UweBrand","domain_name":"brocku","created_at":"2015-06-24T07:20:03.498-07:00","display_name":"Uwe 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Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences"},{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology"},{"id":414,"name":"Mineralogy","url":"https://www.academia.edu/Documents/in/Mineralogy"},{"id":523,"name":"Chemistry","url":"https://www.academia.edu/Documents/in/Chemistry"},{"id":20278,"name":"Diagenesis","url":"https://www.academia.edu/Documents/in/Diagenesis"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences"},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences"},{"id":91258,"name":"Carbonate","url":"https://www.academia.edu/Documents/in/Carbonate"},{"id":151321,"name":"Biogeosciences","url":"https://www.academia.edu/Documents/in/Biogeosciences"},{"id":178355,"name":"Dissolution","url":"https://www.academia.edu/Documents/in/Dissolution"},{"id":205543,"name":"Calcite","url":"https://www.academia.edu/Documents/in/Calcite"},{"id":300085,"name":"Aragonite","url":"https://www.academia.edu/Documents/in/Aragonite"},{"id":437569,"name":"Paleontología","url":"https://www.academia.edu/Documents/in/Paleontolog%C3%ADa"},{"id":461895,"name":"Mineral","url":"https://www.academia.edu/Documents/in/Mineral"},{"id":626780,"name":"Mineralogía","url":"https://www.academia.edu/Documents/in/Mineralog%C3%ADa"}],"urls":[{"id":25683239,"url":"https://bg.copernicus.org/articles/15/7451/2018/bg-15-7451-2018.pdf"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="90238692"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/90238692/Calcite_fibre_formation_in_modern_brachiopod_shells"><img alt="Research paper thumbnail of Calcite fibre formation in modern brachiopod shells" class="work-thumbnail" src="https://attachments.academia-assets.com/93856346/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/90238692/Calcite_fibre_formation_in_modern_brachiopod_shells">Calcite fibre formation in modern brachiopod shells</a></div><div class="wp-workCard_item"><span>Scientific Reports</span><span>, 2019</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="5a0b6764f2d629980730cb4165ba5b03" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":93856346,"asset_id":90238692,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/93856346/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="90238692"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span 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WowProfile.WorkStripView({ el: this, workJSON: {"id":90238692,"title":"Calcite fibre formation in modern brachiopod shells","translated_title":"","metadata":{"publisher":"Springer Science and Business Media LLC","grobid_abstract":"The fibrous calcite layer of modern brachiopod shells is a hybrid composite material and forms a substantial part of the hard tissue. We investigated how cells of the outer mantle epithelium (OME) secrete calcite material and generate the characteristic fibre morphology and composite microstructure of the shell. We employed AFM, FE-SEM, and TEM imaging of embedded/etched, chemically fixed/ decalcified and high-pressure frozen/freeze substituted samples. Calcite fibres are secreted by outer mantle epithelium (OME) cells. Biometric analysis of TEM micrographs indicates that about 50% of these cells are attached via hemidesmosomes to an extracellular organic membrane present at the proximal, convex surface of the fibres. At these sites, mineral secretion is not active. Instead, ion transport from OME cells to developing fibres occurs at regions of closest contact between cells and fibres, however only at sites where the extracellular membrane at the proximal fibre surface is not developed yet. Fibre formation requires the cooperation of several adjacent OME cells. It is a spatially and temporally changing process comprising of detachment of OME cells from the extracellular organic membrane, mineral secretion at detachment sites, termination of secretion with formation of the extracellular organic membrane, and attachment of cells via hemidesmosomes to this membrane.","publication_date":{"day":null,"month":null,"year":2019,"errors":{}},"publication_name":"Scientific Reports","grobid_abstract_attachment_id":93856346},"translated_abstract":null,"internal_url":"https://www.academia.edu/90238692/Calcite_fibre_formation_in_modern_brachiopod_shells","translated_internal_url":"","created_at":"2022-11-07T18:15:19.793-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":32498626,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":93856346,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/93856346/thumbnails/1.jpg","file_name":"s41598-018-36959-z.pdf","download_url":"https://www.academia.edu/attachments/93856346/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Calcite_fibre_formation_in_modern_brachi.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/93856346/s41598-018-36959-z-libre.pdf?1667874174=\u0026response-content-disposition=attachment%3B+filename%3DCalcite_fibre_formation_in_modern_brachi.pdf\u0026Expires=1733220727\u0026Signature=gzO2mNAXPGbOk4RTaSgD-V1nfq8nLcmCvttLHS9BwxZKb-IQBA4oSNrzuWkuRza5WEfZwxZ2PS1Og9yASylwGrO06Wm6b9r7k~OwicNNfheCg2VC9RcD-gsjsxtea9poGUakhNRiD8XYMW-LsaPzkZRXlHkjYjiw1MwIO63jdcmHxWH-EUTZ49rCBJWYZi-CvxVs3-Td10UosrpaPfO2p5RO35tbNP3xwo57-lt1RMUHqzli3UbfztpvYj1ohfJb604OH~Xw5flEwKm9mnA8zTV-yQypZ-gOwVfT-LQUiL0NfH-hAneK8B2thT51Em2lct0~Sz6SOOEe3LqEPtIzAQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Calcite_fibre_formation_in_modern_brachiopod_shells","translated_slug":"","page_count":15,"language":"en","content_type":"Work","owner":{"id":32498626,"first_name":"Uwe","middle_initials":null,"last_name":"Brand","page_name":"UweBrand","domain_name":"brocku","created_at":"2015-06-24T07:20:03.498-07:00","display_name":"Uwe Brand","url":"https://brocku.academia.edu/UweBrand"},"attachments":[{"id":93856346,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/93856346/thumbnails/1.jpg","file_name":"s41598-018-36959-z.pdf","download_url":"https://www.academia.edu/attachments/93856346/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Calcite_fibre_formation_in_modern_brachi.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/93856346/s41598-018-36959-z-libre.pdf?1667874174=\u0026response-content-disposition=attachment%3B+filename%3DCalcite_fibre_formation_in_modern_brachi.pdf\u0026Expires=1733220727\u0026Signature=gzO2mNAXPGbOk4RTaSgD-V1nfq8nLcmCvttLHS9BwxZKb-IQBA4oSNrzuWkuRza5WEfZwxZ2PS1Og9yASylwGrO06Wm6b9r7k~OwicNNfheCg2VC9RcD-gsjsxtea9poGUakhNRiD8XYMW-LsaPzkZRXlHkjYjiw1MwIO63jdcmHxWH-EUTZ49rCBJWYZi-CvxVs3-Td10UosrpaPfO2p5RO35tbNP3xwo57-lt1RMUHqzli3UbfztpvYj1ohfJb604OH~Xw5flEwKm9mnA8zTV-yQypZ-gOwVfT-LQUiL0NfH-hAneK8B2thT51Em2lct0~Sz6SOOEe3LqEPtIzAQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"},{"id":93856347,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/93856347/thumbnails/1.jpg","file_name":"s41598-018-36959-z.pdf","download_url":"https://www.academia.edu/attachments/93856347/download_file","bulk_download_file_name":"Calcite_fibre_formation_in_modern_brachi.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/93856347/s41598-018-36959-z-libre.pdf?1667874162=\u0026response-content-disposition=attachment%3B+filename%3DCalcite_fibre_formation_in_modern_brachi.pdf\u0026Expires=1733220727\u0026Signature=eSl71nEFMJWRtqZh2e~t7KOv8B~9JSTOV1G6WyIcBHG36a1JcB3A8dkHduqCTiytClYdkVqWQKixBBNZ8UPWSKXlfXcCDyNelgEqPIVCWrJQJOPiVlRZXbronYHlHA4DxbfrgRozn74vcmx8DqOKz51aKMeCOpyFP1E9aODCU6NvT9maxJ7dab5YodpBBTLNI6dlDc3YhnepS31~jCUqrPdpSEwGORCb5GIZhMT23tXiz2cDsy2Lz2ZAAlbxeePW4GatNcPQ-lQuGHPQGBzTjfrrFktCIOjCcHk~6pJTNjt7jYe2dnDjsHRoGAVWhvlUFhGu9YeU6ys7EgWQsuGbug__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":523,"name":"Chemistry","url":"https://www.academia.edu/Documents/in/Chemistry"},{"id":21662,"name":"Brachiopods (Biology)","url":"https://www.academia.edu/Documents/in/Brachiopods_Biology_"},{"id":26327,"name":"Medicine","url":"https://www.academia.edu/Documents/in/Medicine"},{"id":46654,"name":"Plates and shells","url":"https://www.academia.edu/Documents/in/Plates_and_shells"},{"id":205543,"name":"Calcite","url":"https://www.academia.edu/Documents/in/Calcite"}],"urls":[{"id":25683238,"url":"http://www.nature.com/articles/s41598-018-36959-z.pdf"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="90238691"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/90238691/Provenance_and_burial_history_of_cement_in_sandstones_of_the_Northbrook_Formation_Carboniferous_western_Newfoundland_Canada_A_geochemical_investigation"><img alt="Research paper thumbnail of Provenance and burial history of cement in sandstones of the Northbrook Formation (Carboniferous), western Newfoundland, Canada: A geochemical investigation" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/90238691/Provenance_and_burial_history_of_cement_in_sandstones_of_the_Northbrook_Formation_Carboniferous_western_Newfoundland_Canada_A_geochemical_investigation">Provenance and burial history of cement in sandstones of the Northbrook Formation (Carboniferous), western Newfoundland, Canada: A geochemical investigation</a></div><div class="wp-workCard_item"><span>Sedimentary Geology</span><span>, 2014</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">ABSTRACT The Carboniferous North Brook Formation (western Newfoundland, Canada) consisting of flu...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">ABSTRACT The Carboniferous North Brook Formation (western Newfoundland, Canada) consisting of fluvial/lacustrine arkosic litharenites has undergone two cementation cycles. The first cycle comprises chlorite followed by minor quartz and calcite. Mono-phase aqueous fluid inclusions hosted in first-cycle calcite reflect precipitation in a near-surface meteoric diagenetic environment. Chlorite linings and cements generally inhibit precipitation of quartz overgrowths, thus maintaining open pore space until a subsequent cycle when temperatures are within the oil window. The second cycle comprises chlorite followed by calcite which hosts two-phase fluid inclusions with homogenization temperatures ranging from 91.7 to 120.7 °C and salinity from 6.3 to 8.4 eq. wt.% NaCl. These results suggest conditions in-line with a deep burial environment, and calculated fluid inclusion isochors stipulate a trapping temperature of around 132 °C and pressure of 500 bar (5 km hydrostatic pressure) for these cements. Quantitative fluid inclusion gas analysis further confirms that fluids were sourced from evolved meteoric fluids with fluctuating CO2:CH4:N2 ratios. Manganese analysis confirms an oxidizing environment for the first-cycle calcite cement but a reducing one for the infilling second-cycle cement. Both cements have similar REE signatures, are slightly LREE-depleted, and during migration the fluids were influenced by the sedimentary host rock. Although there is a prominent negative Ce anomaly, there is no Eu anomaly in the cements. The δ13C and δ18O values are mostly in the negative in the calcite cement hosted in the coarse-grained clastics, which were influenced by migrating brines and/or hydrocarbons. In the diagenetic history of this sedimentary basin, the first cementation event is characterized by chlorite, quartz and calcite emplaced under shallow, oxidizing meteoric water conditions and appropriate temperatures. A diagenetic hiatus ensued until the units were more deeply buried. At this stage, a second generation of cement characterized by minor chlorite and major calcite, infilled vugs and voids under higher temperatures equivalent to the upper limit of the oil window and 5 km burial depth. The lack of porosity precludes the North Brook Formation from being a petroleum reservoir although limited petroleum may have been sourced during the geologic history.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="90238691"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="90238691"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 90238691; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=90238691]").text(description); $(".js-view-count[data-work-id=90238691]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 90238691; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='90238691']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 90238691, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=90238691]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":90238691,"title":"Provenance and burial history of cement in sandstones of the Northbrook Formation (Carboniferous), western Newfoundland, Canada: A geochemical investigation","translated_title":"","metadata":{"abstract":"ABSTRACT The Carboniferous North Brook Formation (western Newfoundland, Canada) consisting of fluvial/lacustrine arkosic litharenites has undergone two cementation cycles. The first cycle comprises chlorite followed by minor quartz and calcite. Mono-phase aqueous fluid inclusions hosted in first-cycle calcite reflect precipitation in a near-surface meteoric diagenetic environment. Chlorite linings and cements generally inhibit precipitation of quartz overgrowths, thus maintaining open pore space until a subsequent cycle when temperatures are within the oil window. The second cycle comprises chlorite followed by calcite which hosts two-phase fluid inclusions with homogenization temperatures ranging from 91.7 to 120.7 °C and salinity from 6.3 to 8.4 eq. wt.% NaCl. These results suggest conditions in-line with a deep burial environment, and calculated fluid inclusion isochors stipulate a trapping temperature of around 132 °C and pressure of 500 bar (5 km hydrostatic pressure) for these cements. Quantitative fluid inclusion gas analysis further confirms that fluids were sourced from evolved meteoric fluids with fluctuating CO2:CH4:N2 ratios. Manganese analysis confirms an oxidizing environment for the first-cycle calcite cement but a reducing one for the infilling second-cycle cement. Both cements have similar REE signatures, are slightly LREE-depleted, and during migration the fluids were influenced by the sedimentary host rock. Although there is a prominent negative Ce anomaly, there is no Eu anomaly in the cements. The δ13C and δ18O values are mostly in the negative in the calcite cement hosted in the coarse-grained clastics, which were influenced by migrating brines and/or hydrocarbons. In the diagenetic history of this sedimentary basin, the first cementation event is characterized by chlorite, quartz and calcite emplaced under shallow, oxidizing meteoric water conditions and appropriate temperatures. A diagenetic hiatus ensued until the units were more deeply buried. At this stage, a second generation of cement characterized by minor chlorite and major calcite, infilled vugs and voids under higher temperatures equivalent to the upper limit of the oil window and 5 km burial depth. The lack of porosity precludes the North Brook Formation from being a petroleum reservoir although limited petroleum may have been sourced during the geologic history.","publisher":"Elsevier BV","publication_date":{"day":null,"month":null,"year":2014,"errors":{}},"publication_name":"Sedimentary Geology"},"translated_abstract":"ABSTRACT The Carboniferous North Brook Formation (western Newfoundland, Canada) consisting of fluvial/lacustrine arkosic litharenites has undergone two cementation cycles. The first cycle comprises chlorite followed by minor quartz and calcite. Mono-phase aqueous fluid inclusions hosted in first-cycle calcite reflect precipitation in a near-surface meteoric diagenetic environment. Chlorite linings and cements generally inhibit precipitation of quartz overgrowths, thus maintaining open pore space until a subsequent cycle when temperatures are within the oil window. The second cycle comprises chlorite followed by calcite which hosts two-phase fluid inclusions with homogenization temperatures ranging from 91.7 to 120.7 °C and salinity from 6.3 to 8.4 eq. wt.% NaCl. These results suggest conditions in-line with a deep burial environment, and calculated fluid inclusion isochors stipulate a trapping temperature of around 132 °C and pressure of 500 bar (5 km hydrostatic pressure) for these cements. Quantitative fluid inclusion gas analysis further confirms that fluids were sourced from evolved meteoric fluids with fluctuating CO2:CH4:N2 ratios. Manganese analysis confirms an oxidizing environment for the first-cycle calcite cement but a reducing one for the infilling second-cycle cement. Both cements have similar REE signatures, are slightly LREE-depleted, and during migration the fluids were influenced by the sedimentary host rock. Although there is a prominent negative Ce anomaly, there is no Eu anomaly in the cements. The δ13C and δ18O values are mostly in the negative in the calcite cement hosted in the coarse-grained clastics, which were influenced by migrating brines and/or hydrocarbons. In the diagenetic history of this sedimentary basin, the first cementation event is characterized by chlorite, quartz and calcite emplaced under shallow, oxidizing meteoric water conditions and appropriate temperatures. A diagenetic hiatus ensued until the units were more deeply buried. At this stage, a second generation of cement characterized by minor chlorite and major calcite, infilled vugs and voids under higher temperatures equivalent to the upper limit of the oil window and 5 km burial depth. The lack of porosity precludes the North Brook Formation from being a petroleum reservoir although limited petroleum may have been sourced during the geologic history.","internal_url":"https://www.academia.edu/90238691/Provenance_and_burial_history_of_cement_in_sandstones_of_the_Northbrook_Formation_Carboniferous_western_Newfoundland_Canada_A_geochemical_investigation","translated_internal_url":"","created_at":"2022-11-07T18:15:19.585-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":32498626,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"Provenance_and_burial_history_of_cement_in_sandstones_of_the_Northbrook_Formation_Carboniferous_western_Newfoundland_Canada_A_geochemical_investigation","translated_slug":"","page_count":null,"language":"en","content_type":"Work","owner":{"id":32498626,"first_name":"Uwe","middle_initials":null,"last_name":"Brand","page_name":"UweBrand","domain_name":"brocku","created_at":"2015-06-24T07:20:03.498-07:00","display_name":"Uwe Brand","url":"https://brocku.academia.edu/UweBrand"},"attachments":[],"research_interests":[{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology"},{"id":407,"name":"Geochemistry","url":"https://www.academia.edu/Documents/in/Geochemistry"},{"id":20278,"name":"Diagenesis","url":"https://www.academia.edu/Documents/in/Diagenesis"},{"id":82911,"name":"fluid Inclusions","url":"https://www.academia.edu/Documents/in/fluid_Inclusions"},{"id":156034,"name":"Sedimentary Geology","url":"https://www.academia.edu/Documents/in/Sedimentary_Geology"},{"id":205543,"name":"Calcite","url":"https://www.academia.edu/Documents/in/Calcite"},{"id":362688,"name":"Meteoric water","url":"https://www.academia.edu/Documents/in/Meteoric_water"},{"id":1567560,"name":"Sedimentary Rock","url":"https://www.academia.edu/Documents/in/Sedimentary_Rock"},{"id":3002760,"name":"Chlorite","url":"https://www.academia.edu/Documents/in/Chlorite"}],"urls":[{"id":25683237,"url":"https://api.elsevier.com/content/article/PII:S0037073813001929?httpAccept=text/xml"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="90238689"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/90238689/Oxygen_isotope_values_from_high_latitudes_Clues_for_Permian_sea_surface_temperature_gradients_and_Late_Palaeozoic_deglaciation"><img alt="Research paper thumbnail of Oxygen isotope values from high-latitudes: Clues for Permian sea-surface temperature gradients and Late Palaeozoic deglaciation" class="work-thumbnail" src="https://attachments.academia-assets.com/93856376/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/90238689/Oxygen_isotope_values_from_high_latitudes_Clues_for_Permian_sea_surface_temperature_gradients_and_Late_Palaeozoic_deglaciation">Oxygen isotope values from high-latitudes: Clues for Permian sea-surface temperature gradients and Late Palaeozoic deglaciation</a></div><div class="wp-workCard_item"><span>Palaeogeography, Palaeoclimatology, Palaeoecology</span><span>, 2008</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="0a4405f4f1c1bff136959ef42a9a0d4a" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":93856376,"asset_id":90238689,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/93856376/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="90238689"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="90238689"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 90238689; 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The waning of these ice sheets during the Early Permian led to discharge of 18 O-depleted ice-melt water into the oceans. This, coupled with rising seawater temperatures, resulted in a concomitant decline of about 2.5‰ in the δ 18 O of seawater, as recorded by brachiopod shells from low-latitude (b 30°) habitats. The transition from ice-to greenhouse conditions is reflected also in the oxygen isotope data of unaltered brachiopods and bivalves from high high-latitudes. Moreover, the high-latitude specimens have consistently more positive δ 18 O, by about 2.5‰, than their coeval low-latitude counterparts, suggesting a Permian sea-surface temperature (SST) gradient of about 9 to 12°C between tropical-subtropical (b 30°) and high southern (55 ± 10°) latitude localities, apparently irrespective of whether in a greenhouse or an icehouse mode. This Permian SST gradient is comparable to the modern SST gradient of about 14°C. 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="90238688"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/90238688/Hydrothermal_diagenesis_of_Paleozoic_seamount_carbonate_components"><img alt="Research paper thumbnail of Hydrothermal diagenesis of Paleozoic seamount carbonate components" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/90238688/Hydrothermal_diagenesis_of_Paleozoic_seamount_carbonate_components">Hydrothermal diagenesis of Paleozoic seamount carbonate components</a></div><div class="wp-workCard_item"><span>Chemical Geology</span><span>, 2010</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">We present geochemical results of Paleozoic carbonate components (brachiopods—biogenic low-Mg cal...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">We present geochemical results of Paleozoic carbonate components (brachiopods—biogenic low-Mg calcite: bLMC, crinoids—biogenic high-Mg calcite: bHMC and whole rock—admixture of aragonite and calcite: wrAC) from open ocean Permo-Carboniferous seamounts of Japan situated in the tropical mid-Panthalassic Ocean. The diagenetic history of these and other carbonate allochems was determined by visual/optical inspection of their external morphology and luminescence, by evaluation of</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="90238688"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="90238688"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 90238688; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=90238688]").text(description); $(".js-view-count[data-work-id=90238688]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 90238688; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='90238688']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 90238688, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=90238688]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":90238688,"title":"Hydrothermal diagenesis of Paleozoic seamount carbonate components","translated_title":"","metadata":{"abstract":"We present geochemical results of Paleozoic carbonate components (brachiopods—biogenic low-Mg calcite: bLMC, crinoids—biogenic high-Mg calcite: bHMC and whole rock—admixture of aragonite and calcite: wrAC) from open ocean Permo-Carboniferous seamounts of Japan situated in the tropical mid-Panthalassic Ocean. The diagenetic history of these and other carbonate allochems was determined by visual/optical inspection of their external morphology and luminescence, by evaluation of","publisher":"Elsevier BV","publication_date":{"day":null,"month":null,"year":2010,"errors":{}},"publication_name":"Chemical Geology"},"translated_abstract":"We present geochemical results of Paleozoic carbonate components (brachiopods—biogenic low-Mg calcite: bLMC, crinoids—biogenic high-Mg calcite: bHMC and whole rock—admixture of aragonite and calcite: wrAC) from open ocean Permo-Carboniferous seamounts of Japan situated in the tropical mid-Panthalassic Ocean. 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="84901407"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/84901407/Bathymetry_and_productivity_of_the_southern_Great_Basin_seaway_Nevada_USA_An_evaluation_of_isotope_and_trace_element_chemistry_in_mid_Carboniferous_and_modern_brachiopods"><img alt="Research paper thumbnail of Bathymetry and productivity of the southern Great Basin seaway, Nevada, USA: An evaluation of isotope and trace element chemistry in mid-Carboniferous and modern brachiopods" class="work-thumbnail" src="https://attachments.academia-assets.com/89769470/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/84901407/Bathymetry_and_productivity_of_the_southern_Great_Basin_seaway_Nevada_USA_An_evaluation_of_isotope_and_trace_element_chemistry_in_mid_Carboniferous_and_modern_brachiopods">Bathymetry and productivity of the southern Great Basin seaway, Nevada, USA: An evaluation of isotope and trace element chemistry in mid-Carboniferous and modern brachiopods</a></div><div class="wp-workCard_item"><span>Palaeogeography, Palaeoclimatology, Palaeoecology</span><span>, 2007</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="243610467e99a1c8b6eca03958dc01d2" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":89769470,"asset_id":84901407,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/89769470/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="84901407"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="84901407"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 84901407; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=84901407]").text(description); $(".js-view-count[data-work-id=84901407]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 84901407; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='84901407']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 84901407, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "243610467e99a1c8b6eca03958dc01d2" } } $('.js-work-strip[data-work-id=84901407]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":84901407,"title":"Bathymetry and productivity of the southern Great Basin seaway, Nevada, USA: An evaluation of isotope and trace element chemistry in mid-Carboniferous and modern brachiopods","translated_title":"","metadata":{"publisher":"Elsevier BV","grobid_abstract":"The stable isotope and trace element chemistry of brachiopods from stratigraphically, paleontologically, and geochemically three coeval intervals about the mid-Carboniferous boundary in the Bird Spring Formation were evaluated for their potential of serving as proxies of bathymetry and productivity of the southern Great Basin seaway, an eastern arm of the Panthalassa Ocean. Oxygen isotopes delineate both spatial and temporal differences in values of brachiopods from the three coeval mid-Carboniferous sections. Based on pristine brachiopod δ 18 O values and supported by paleoecological information, water depth increased from Apex to Kane Springs Wash East to Arrow Canyon. In addition, there is also an increase in values from the latest Mississippian to the earliest Pennsylvanian suggesting a water temperature (cooling), a water depth (increase), and/or change in both of the habitat of the penecontemporaneous brachiopods. Analogous to values and trends observed in modern brachiopods, the Fe/Mn ratio of fossil counterparts may be a potential proxy of seawater productivity related to the micronutrient iron. Overall, the high ratios of Fe/Mn suggest highly productive waters for the southern Great Basin seaway, with somewhat reduced productivity during the earliest Pennsylvanian. In contrast, the carbon isotope values of the coeval material are relatively invariant with respect to productivity; trends similar to observations on modern carbonate allochems. Based on habitat and paleogeography, the Antler Orogenic Highlands west of the foreland basin are considered a potential source for the micronutrient iron enrichment of the carbonate platform shelf-edge environment. It is further postulated that upwelling currents, in part, which weakened from the latest Mississippian through to the earliest Pennsylvanian, may have transported the micronutrient iron onto the shelf/basin environments of the Bird Spring Formation of the southern Great Basin.","publication_date":{"day":null,"month":null,"year":2007,"errors":{}},"publication_name":"Palaeogeography, Palaeoclimatology, 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data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/81243525/Strontium_isotope_geochemistry_of_modern_and_ancient_archives_tracer_of_secular_change_in_ocean_chemistry"><img alt="Research paper thumbnail of Strontium isotope geochemistry of modern and ancient archives: tracer of secular change in ocean chemistry" class="work-thumbnail" src="https://attachments.academia-assets.com/87356233/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/81243525/Strontium_isotope_geochemistry_of_modern_and_ancient_archives_tracer_of_secular_change_in_ocean_chemistry">Strontium isotope geochemistry of modern and ancient archives: tracer of secular change in ocean chemistry</a></div><div class="wp-workCard_item"><span>Canadian Journal of Earth Sciences</span><span>, 2018</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Strontium isotopes of marine archives provide a significant means for tracing physical and chemic...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Strontium isotopes of marine archives provide a significant means for tracing physical and chemical processes operating over geologic time. Modern articulated brachiopods and halite samples were collected from all depths of the world’s main water bodies. Material from the Arctic, North and South Atlantic, North and South Pacific, Indian and Southern oceans, as well as Caribbean and Mediterranean seas provide baseline parameters for diagenetic screening and reconstruction of seawater curves. The Sr isotopic ratio of modern brachiopods is unobscured by latitude, depth, and biologic factors (Order, valves, and shell segment). However, there is a small but significant impact of external sources reflected by salinity and temperature on the Sr isotope ratio of modern brachiopods. We found a significant difference in 87Sr/86Sr of brachiopods from polar and temperate-tropical habitats (p = 0.001), which should be considered when working with deep-time archives. The average 87Sr/86Sr value o...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="db5a2567328afc95be6e4c177420a0f6" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":87356233,"asset_id":81243525,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/87356233/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="81243525"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="81243525"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 81243525; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=81243525]").text(description); $(".js-view-count[data-work-id=81243525]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 81243525; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='81243525']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 81243525, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "db5a2567328afc95be6e4c177420a0f6" } } $('.js-work-strip[data-work-id=81243525]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":81243525,"title":"Strontium isotope geochemistry of modern and ancient archives: tracer of secular change in ocean chemistry","translated_title":"","metadata":{"abstract":"Strontium isotopes of marine archives provide a significant means for tracing physical and chemical processes operating over geologic time. Modern articulated brachiopods and halite samples were collected from all depths of the world’s main water bodies. Material from the Arctic, North and South Atlantic, North and South Pacific, Indian and Southern oceans, as well as Caribbean and Mediterranean seas provide baseline parameters for diagenetic screening and reconstruction of seawater curves. The Sr isotopic ratio of modern brachiopods is unobscured by latitude, depth, and biologic factors (Order, valves, and shell segment). However, there is a small but significant impact of external sources reflected by salinity and temperature on the Sr isotope ratio of modern brachiopods. We found a significant difference in 87Sr/86Sr of brachiopods from polar and temperate-tropical habitats (p = 0.001), which should be considered when working with deep-time archives. The average 87Sr/86Sr value o...","publisher":"Canadian Science Publishing","publication_date":{"day":null,"month":null,"year":2018,"errors":{}},"publication_name":"Canadian Journal of Earth Sciences"},"translated_abstract":"Strontium isotopes of marine archives provide a significant means for tracing physical and chemical processes operating over geologic time. Modern articulated brachiopods and halite samples were collected from all depths of the world’s main water bodies. Material from the Arctic, North and South Atlantic, North and South Pacific, Indian and Southern oceans, as well as Caribbean and Mediterranean seas provide baseline parameters for diagenetic screening and reconstruction of seawater curves. The Sr isotopic ratio of modern brachiopods is unobscured by latitude, depth, and biologic factors (Order, valves, and shell segment). However, there is a small but significant impact of external sources reflected by salinity and temperature on the Sr isotope ratio of modern brachiopods. We found a significant difference in 87Sr/86Sr of brachiopods from polar and temperate-tropical habitats (p = 0.001), which should be considered when working with deep-time archives. The average 87Sr/86Sr value o...","internal_url":"https://www.academia.edu/81243525/Strontium_isotope_geochemistry_of_modern_and_ancient_archives_tracer_of_secular_change_in_ocean_chemistry","translated_internal_url":"","created_at":"2022-06-11T09:34:42.638-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":32498626,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":87356233,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/87356233/thumbnails/1.jpg","file_name":"2aeb8b1b51d6be6357dbab96ffe0f9db48ee.pdf","download_url":"https://www.academia.edu/attachments/87356233/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Strontium_isotope_geochemistry_of_modern.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/87356233/2aeb8b1b51d6be6357dbab96ffe0f9db48ee-libre.pdf?1654966440=\u0026response-content-disposition=attachment%3B+filename%3DStrontium_isotope_geochemistry_of_modern.pdf\u0026Expires=1733220727\u0026Signature=ESItya6EEvuTWDOkizUbv11Ro37XDejUZNeFEB3LnfSD2FdTS3zTOKvDBxSlxVH2t0APP~79j0V4Xzav2R1AR7w6O7Lc2zETFtTEKDGahY8PpyZUio~OgvBhGRX9psUSzyaPdboSYuHQlIejbSUmNMxWXQ9Ot4nifbNQBjPBgOLQxK23nZJBEBBTbUt-0aaH-m1YMgGELZeXapMBK7FqDdPE3IWKV5n-sE7C3MxnR-ZFa4Ee4ugcYjmzDJJ6xv0M4q358B1iKhQUXNSTyMzbBIAtBP51tuc9pIcxmBGXRHfVE97owizd9QDWNsG37RDU11wFeL28cWrt0c9ojnYytA__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Strontium_isotope_geochemistry_of_modern_and_ancient_archives_tracer_of_secular_change_in_ocean_chemistry","translated_slug":"","page_count":82,"language":"en","content_type":"Work","owner":{"id":32498626,"first_name":"Uwe","middle_initials":null,"last_name":"Brand","page_name":"UweBrand","domain_name":"brocku","created_at":"2015-06-24T07:20:03.498-07:00","display_name":"Uwe Brand","url":"https://brocku.academia.edu/UweBrand"},"attachments":[{"id":87356233,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/87356233/thumbnails/1.jpg","file_name":"2aeb8b1b51d6be6357dbab96ffe0f9db48ee.pdf","download_url":"https://www.academia.edu/attachments/87356233/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Strontium_isotope_geochemistry_of_modern.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/87356233/2aeb8b1b51d6be6357dbab96ffe0f9db48ee-libre.pdf?1654966440=\u0026response-content-disposition=attachment%3B+filename%3DStrontium_isotope_geochemistry_of_modern.pdf\u0026Expires=1733220727\u0026Signature=ESItya6EEvuTWDOkizUbv11Ro37XDejUZNeFEB3LnfSD2FdTS3zTOKvDBxSlxVH2t0APP~79j0V4Xzav2R1AR7w6O7Lc2zETFtTEKDGahY8PpyZUio~OgvBhGRX9psUSzyaPdboSYuHQlIejbSUmNMxWXQ9Ot4nifbNQBjPBgOLQxK23nZJBEBBTbUt-0aaH-m1YMgGELZeXapMBK7FqDdPE3IWKV5n-sE7C3MxnR-ZFa4Ee4ugcYjmzDJJ6xv0M4q358B1iKhQUXNSTyMzbBIAtBP51tuc9pIcxmBGXRHfVE97owizd9QDWNsG37RDU11wFeL28cWrt0c9ojnYytA__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":400,"name":"Earth Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences"},{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology"},{"id":407,"name":"Geochemistry","url":"https://www.academia.edu/Documents/in/Geochemistry"},{"id":361750,"name":"Isotope","url":"https://www.academia.edu/Documents/in/Isotope"}],"urls":[{"id":21326021,"url":"http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjes-2018-0085"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="64846925"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/64846925/Brachiopod_Based_Oxygen_Isotope_Thermometer_Update_and_Review"><img alt="Research paper thumbnail of Brachiopod-Based Oxygen-Isotope Thermometer: Update and Review" class="work-thumbnail" src="https://attachments.academia-assets.com/76691159/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/64846925/Brachiopod_Based_Oxygen_Isotope_Thermometer_Update_and_Review">Brachiopod-Based Oxygen-Isotope Thermometer: Update and Review</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">In the early 1950’s, McCrea and Epstein and co-workers laid the foundation for the oxygen isotope...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">In the early 1950’s, McCrea and Epstein and co-workers laid the foundation for the oxygen isotopebased thermometers. Many variations of the thermometer have been since formulated based on synthetic and biogenic carbonates. Overall, the use and application of oxygen isotope thermometers must consider and be specific as to the mineralogy, and whether it is synthetic, abiogenic or biogenic carbonate. Here, we propose an updated and refined oxygen-isotope thermometer based on a large database of articulated brachiopods from high to low latitudes, cold to warm and shallow to deep-water regimes. In general, brachiopodbased oxygen isotopes are offset from abiogenic calcite precipitated in thermodynamic equilibrium by about -1 ‰. They maintain this offset and that allows for the determination of robust ambient water temperatures over the full marine spectrum. Thus, the specific brachiopod-based oxygen-isotope thermometer applies, with few exceptions, to most modern articulated brachiopods, ...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="937800da71a3ba719eaf549c3d8f3718" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":76691159,"asset_id":64846925,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/76691159/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="64846925"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="64846925"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 64846925; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=64846925]").text(description); $(".js-view-count[data-work-id=64846925]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 64846925; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='64846925']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 64846925, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "937800da71a3ba719eaf549c3d8f3718" } } $('.js-work-strip[data-work-id=64846925]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":64846925,"title":"Brachiopod-Based Oxygen-Isotope Thermometer: Update and Review","translated_title":"","metadata":{"abstract":"In the early 1950’s, McCrea and Epstein and co-workers laid the foundation for the oxygen isotopebased thermometers. Many variations of the thermometer have been since formulated based on synthetic and biogenic carbonates. Overall, the use and application of oxygen isotope thermometers must consider and be specific as to the mineralogy, and whether it is synthetic, abiogenic or biogenic carbonate. Here, we propose an updated and refined oxygen-isotope thermometer based on a large database of articulated brachiopods from high to low latitudes, cold to warm and shallow to deep-water regimes. In general, brachiopodbased oxygen isotopes are offset from abiogenic calcite precipitated in thermodynamic equilibrium by about -1 ‰. They maintain this offset and that allows for the determination of robust ambient water temperatures over the full marine spectrum. Thus, the specific brachiopod-based oxygen-isotope thermometer applies, with few exceptions, to most modern articulated brachiopods, ...","ai_title_tag":"Brachiopod Oxygen-Isotope Thermometer: Update and Refinement","publication_date":{"day":null,"month":null,"year":2019,"errors":{}}},"translated_abstract":"In the early 1950’s, McCrea and Epstein and co-workers laid the foundation for the oxygen isotopebased thermometers. Many variations of the thermometer have been since formulated based on synthetic and biogenic carbonates. Overall, the use and application of oxygen isotope thermometers must consider and be specific as to the mineralogy, and whether it is synthetic, abiogenic or biogenic carbonate. Here, we propose an updated and refined oxygen-isotope thermometer based on a large database of articulated brachiopods from high to low latitudes, cold to warm and shallow to deep-water regimes. In general, brachiopodbased oxygen isotopes are offset from abiogenic calcite precipitated in thermodynamic equilibrium by about -1 ‰. They maintain this offset and that allows for the determination of robust ambient water temperatures over the full marine spectrum. Thus, the specific brachiopod-based oxygen-isotope thermometer applies, with few exceptions, to most modern articulated brachiopods, ...","internal_url":"https://www.academia.edu/64846925/Brachiopod_Based_Oxygen_Isotope_Thermometer_Update_and_Review","translated_internal_url":"","created_at":"2021-12-17T07:28:45.997-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":32498626,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":76691159,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/76691159/thumbnails/1.jpg","file_name":"brand_20et_20al_20RIPS.pdf","download_url":"https://www.academia.edu/attachments/76691159/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Brachiopod_Based_Oxygen_Isotope_Thermome.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/76691159/brand_20et_20al_20RIPS-libre.pdf?1639757546=\u0026response-content-disposition=attachment%3B+filename%3DBrachiopod_Based_Oxygen_Isotope_Thermome.pdf\u0026Expires=1733220727\u0026Signature=g~UZk0XE36kllryADowlR5AQyddimqFC9tudzmFCX42GfdSkHbr9JdS3olsEzmqyhbk8fJTm~uFzfLvTkrz7Y0IcXWNXEQ3mHr5xG~DqwwwjUYVo0ylrweLf7MHd~5SOT6Ng9993yONLBhBkpBMOPxVf3t59ZUl9ZTAG8WKo448fpZ~M~5bzVsbz9sl10aq83isBFHM2MVbxQsrDGKCRe6XRCo1t7nVFzhrr0DCjcoRYHSLyetKE1I7UjoNuhpberMSWusvFTgXi0RGcTJCirlF~DUS6t9F7FyaSDo~qsHQEqF3hc1ZWNffUGPnWGBtMA9SZxP8Fm7OrcKzUwBwroA__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Brachiopod_Based_Oxygen_Isotope_Thermometer_Update_and_Review","translated_slug":"","page_count":14,"language":"en","content_type":"Work","owner":{"id":32498626,"first_name":"Uwe","middle_initials":null,"last_name":"Brand","page_name":"UweBrand","domain_name":"brocku","created_at":"2015-06-24T07:20:03.498-07:00","display_name":"Uwe Brand","url":"https://brocku.academia.edu/UweBrand"},"attachments":[{"id":76691159,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/76691159/thumbnails/1.jpg","file_name":"brand_20et_20al_20RIPS.pdf","download_url":"https://www.academia.edu/attachments/76691159/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Brachiopod_Based_Oxygen_Isotope_Thermome.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/76691159/brand_20et_20al_20RIPS-libre.pdf?1639757546=\u0026response-content-disposition=attachment%3B+filename%3DBrachiopod_Based_Oxygen_Isotope_Thermome.pdf\u0026Expires=1733220727\u0026Signature=g~UZk0XE36kllryADowlR5AQyddimqFC9tudzmFCX42GfdSkHbr9JdS3olsEzmqyhbk8fJTm~uFzfLvTkrz7Y0IcXWNXEQ3mHr5xG~DqwwwjUYVo0ylrweLf7MHd~5SOT6Ng9993yONLBhBkpBMOPxVf3t59ZUl9ZTAG8WKo448fpZ~M~5bzVsbz9sl10aq83isBFHM2MVbxQsrDGKCRe6XRCo1t7nVFzhrr0DCjcoRYHSLyetKE1I7UjoNuhpberMSWusvFTgXi0RGcTJCirlF~DUS6t9F7FyaSDo~qsHQEqF3hc1ZWNffUGPnWGBtMA9SZxP8Fm7OrcKzUwBwroA__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[],"urls":[{"id":15321201,"url":"https://air.unimi.it/retrieve/handle/2434/700111/1376426/brand%20et%20al%20RIPS.pdf"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="64846923"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/64846923/A_Sampling_Strategy_for_Recent_and_Fossil_Brachiopods_Selecting_the_Optimal_Shell_Segment_for_Geochemical_Analyses"><img alt="Research paper thumbnail of A Sampling Strategy for Recent and Fossil Brachiopods: Selecting the Optimal Shell Segment for Geochemical Analyses" class="work-thumbnail" src="https://attachments.academia-assets.com/76691160/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/64846923/A_Sampling_Strategy_for_Recent_and_Fossil_Brachiopods_Selecting_the_Optimal_Shell_Segment_for_Geochemical_Analyses">A Sampling Strategy for Recent and Fossil Brachiopods: Selecting the Optimal Shell Segment for Geochemical Analyses</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Recent and fossil brachiopod shells have a long record as biomineral archives for (palaeo)climati...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Recent and fossil brachiopod shells have a long record as biomineral archives for (palaeo)climatic and (palaeo)environmental reconstructions, as they lack or exhibit limited vital effects in their calcite shell and generally are quite resistant to diagenetic alteration. Despite this, only few studies address the issue of identifying the best or optimal part of the shell for geochemical analyses. We investigated the link between ontogeny and geochemical signatures recorded in different parts of the shell. To reach this aim, we analysed the elemental (Ca, Mg, Sr, Na) and stable isotope (δ18O, δ13C) compositions of five recent brachiopod species (Magellania venosa, Liothyrella uva, Aerothyris kerguelensis, Liothyrella neozelanica and Gryphus vitreus), spanning broad geographical and environmental ranges (Chile, Antarctica, Indian Ocean, New Zealand and Italy) and having different shell layer successions (two-layer and three-layer shells). We observed similar patterns in the ventral and...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="f4b5f95b2794ff0c6257abfce4a659ef" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":76691160,"asset_id":64846923,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/76691160/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="64846923"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="64846923"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 64846923; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=64846923]").text(description); $(".js-view-count[data-work-id=64846923]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 64846923; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='64846923']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 64846923, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "f4b5f95b2794ff0c6257abfce4a659ef" } } $('.js-work-strip[data-work-id=64846923]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":64846923,"title":"A Sampling Strategy for Recent and Fossil Brachiopods: Selecting the Optimal Shell Segment for Geochemical Analyses","translated_title":"","metadata":{"abstract":"Recent and fossil brachiopod shells have a long record as biomineral archives for (palaeo)climatic and (palaeo)environmental reconstructions, as they lack or exhibit limited vital effects in their calcite shell and generally are quite resistant to diagenetic alteration. Despite this, only few studies address the issue of identifying the best or optimal part of the shell for geochemical analyses. We investigated the link between ontogeny and geochemical signatures recorded in different parts of the shell. To reach this aim, we analysed the elemental (Ca, Mg, Sr, Na) and stable isotope (δ18O, δ13C) compositions of five recent brachiopod species (Magellania venosa, Liothyrella uva, Aerothyris kerguelensis, Liothyrella neozelanica and Gryphus vitreus), spanning broad geographical and environmental ranges (Chile, Antarctica, Indian Ocean, New Zealand and Italy) and having different shell layer successions (two-layer and three-layer shells). We observed similar patterns in the ventral and...","publication_date":{"day":null,"month":null,"year":2018,"errors":{}}},"translated_abstract":"Recent and fossil brachiopod shells have a long record as biomineral archives for (palaeo)climatic and (palaeo)environmental reconstructions, as they lack or exhibit limited vital effects in their calcite shell and generally are quite resistant to diagenetic alteration. Despite this, only few studies address the issue of identifying the best or optimal part of the shell for geochemical analyses. We investigated the link between ontogeny and geochemical signatures recorded in different parts of the shell. To reach this aim, we analysed the elemental (Ca, Mg, Sr, Na) and stable isotope (δ18O, δ13C) compositions of five recent brachiopod species (Magellania venosa, Liothyrella uva, Aerothyris kerguelensis, Liothyrella neozelanica and Gryphus vitreus), spanning broad geographical and environmental ranges (Chile, Antarctica, Indian Ocean, New Zealand and Italy) and having different shell layer successions (two-layer and three-layer shells). We observed similar patterns in the ventral and...","internal_url":"https://www.academia.edu/64846923/A_Sampling_Strategy_for_Recent_and_Fossil_Brachiopods_Selecting_the_Optimal_Shell_Segment_for_Geochemical_Analyses","translated_internal_url":"","created_at":"2021-12-17T07:28:45.771-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":32498626,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":76691160,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/76691160/thumbnails/1.jpg","file_name":"Romanin_et_al_2018_supp.pdf","download_url":"https://www.academia.edu/attachments/76691160/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"A_Sampling_Strategy_for_Recent_and_Fossi.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/76691160/Romanin_et_al_2018_supp-libre.pdf?1639757538=\u0026response-content-disposition=attachment%3B+filename%3DA_Sampling_Strategy_for_Recent_and_Fossi.pdf\u0026Expires=1733220727\u0026Signature=VmvzzYecjkMnMdPhghOTtBPRO3HZ5aMwqdVlhezGhVpEmeJ~H0fxrFJnx-wrsgMMn0hBTVdwkbZ2Vm~pNBJzVcplDaM5GRO9gmrC6VSI1imlMecr7OTu8bz1mE1rF~uT7QJfa6x-kmApju9hKaM9ZHcmoakDV2dRfAD6ti2PEBmYmDQQw0TGqq5Q-u5QNPsNlZpBjMpGq0LKLuVNVf0T4-T5clG3Z-FcevhSWLhKEcOSpQpNm~1abEQjRR6GMx-YNPaqiZWVxi7dn9fszvnHPjPHdj9Fdj~HAAnd2xao2n9pW4PgGDEyIHLHRvw1DKRvntV7JCnoGU6DK0ERP7xlTg__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"A_Sampling_Strategy_for_Recent_and_Fossil_Brachiopods_Selecting_the_Optimal_Shell_Segment_for_Geochemical_Analyses","translated_slug":"","page_count":4,"language":"en","content_type":"Work","owner":{"id":32498626,"first_name":"Uwe","middle_initials":null,"last_name":"Brand","page_name":"UweBrand","domain_name":"brocku","created_at":"2015-06-24T07:20:03.498-07:00","display_name":"Uwe Brand","url":"https://brocku.academia.edu/UweBrand"},"attachments":[{"id":76691160,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/76691160/thumbnails/1.jpg","file_name":"Romanin_et_al_2018_supp.pdf","download_url":"https://www.academia.edu/attachments/76691160/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"A_Sampling_Strategy_for_Recent_and_Fossi.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/76691160/Romanin_et_al_2018_supp-libre.pdf?1639757538=\u0026response-content-disposition=attachment%3B+filename%3DA_Sampling_Strategy_for_Recent_and_Fossi.pdf\u0026Expires=1733220727\u0026Signature=VmvzzYecjkMnMdPhghOTtBPRO3HZ5aMwqdVlhezGhVpEmeJ~H0fxrFJnx-wrsgMMn0hBTVdwkbZ2Vm~pNBJzVcplDaM5GRO9gmrC6VSI1imlMecr7OTu8bz1mE1rF~uT7QJfa6x-kmApju9hKaM9ZHcmoakDV2dRfAD6ti2PEBmYmDQQw0TGqq5Q-u5QNPsNlZpBjMpGq0LKLuVNVf0T4-T5clG3Z-FcevhSWLhKEcOSpQpNm~1abEQjRR6GMx-YNPaqiZWVxi7dn9fszvnHPjPHdj9Fdj~HAAnd2xao2n9pW4PgGDEyIHLHRvw1DKRvntV7JCnoGU6DK0ERP7xlTg__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"},{"id":76691162,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/76691162/thumbnails/1.jpg","file_name":"Romanin_et_al_2018_supp.pdf","download_url":"https://www.academia.edu/attachments/76691162/download_file","bulk_download_file_name":"A_Sampling_Strategy_for_Recent_and_Fossi.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/76691162/Romanin_et_al_2018_supp-libre.pdf?1639757538=\u0026response-content-disposition=attachment%3B+filename%3DA_Sampling_Strategy_for_Recent_and_Fossi.pdf\u0026Expires=1733220727\u0026Signature=OOjizu5-SKkIfhPjd3FMKu91KkUHAJEs73YpOZryKQL-7~C0K5mMd6WqF-8p0FX6I4czVP-qjjAz6eosLvIHBJUYOXJIBtGHM-1phAzcvySFhIBkw2TbqssA2WgMJeyff40s7cdAbpvXo7RF2C9Ojte3G8Uu~MpRTvrcVgPwm2V~lxFxNXKNZ4obLHmIn~tSnRpdCBa~OCQ~bPhlNG~zWKPjQj70hjTvvQP8rFFk0KXbJRI7SCuyqV~2UNN5Ic2avUcY2eEEVArtmanhmVKGPFNacaGb0I5b0kR24Hj0zvIqz~5cf9Q6sdZowidvKYuk-6eLWt3UAk3wnfwTWt6T1Q__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[],"urls":[{"id":15321199,"url":"http://epic.awi.de/47297/2/Romanin_et_al_2018_supp.pdf"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="64846920"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/64846920/Archival_biogenic_micro_and_nanostructure_data_analysis_Signatures_of_diagenetic_systems"><img alt="Research paper thumbnail of Archival biogenic micro- and nanostructure data analysis: Signatures of diagenetic systems" class="work-thumbnail" src="https://attachments.academia-assets.com/76691310/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/64846920/Archival_biogenic_micro_and_nanostructure_data_analysis_Signatures_of_diagenetic_systems">Archival biogenic micro- and nanostructure data analysis: Signatures of diagenetic systems</a></div><div class="wp-workCard_item"><span>Data in brief</span><span>, 2018</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The present data in brief article provides additional data and information to our research articl...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">The present data in brief article provides additional data and information to our research article &quot;Micro- and nanostructures reflect the degree of diagenetic alteration in modern and fossil brachiopod shell calcite: a multi-analytical screening approach (CL, FE-SEM, AFM, EBSD)&quot; [1] (Casella et al.). We present fibre morphology, nano- and microstructure, as well as calcite crystal orientations and textures found in pristine, experimentally altered (hydrothermal and thermal), and diagenetically overprinted brachiopod shells. Combination of the screening tools AFM, FE-SEM, and EBSD allows to observe a significant change in microstructural and textural features with an increasing degree of laboratory-based and naturally occurring diagenetic alteration. Amalgamation of neighbouring fibres was observed on the micrometre scale level, whereas progressive decomposition of biopolymers in the shells and fusion of nanoparticulate calcite crystals was detected on the nanometre scale. ...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="00f4dee59bdf3876600e4eb75499917c" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":76691310,"asset_id":64846920,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/76691310/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="64846920"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="64846920"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 64846920; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=64846920]").text(description); $(".js-view-count[data-work-id=64846920]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 64846920; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='64846920']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 64846920, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "00f4dee59bdf3876600e4eb75499917c" } } $('.js-work-strip[data-work-id=64846920]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":64846920,"title":"Archival biogenic micro- and nanostructure data analysis: Signatures of diagenetic systems","translated_title":"","metadata":{"abstract":"The present data in brief article provides additional data and information to our research article \u0026quot;Micro- and nanostructures reflect the degree of diagenetic alteration in modern and fossil brachiopod shell calcite: a multi-analytical screening approach (CL, FE-SEM, AFM, EBSD)\u0026quot; [1] (Casella et al.). We present fibre morphology, nano- and microstructure, as well as calcite crystal orientations and textures found in pristine, experimentally altered (hydrothermal and thermal), and diagenetically overprinted brachiopod shells. Combination of the screening tools AFM, FE-SEM, and EBSD allows to observe a significant change in microstructural and textural features with an increasing degree of laboratory-based and naturally occurring diagenetic alteration. Amalgamation of neighbouring fibres was observed on the micrometre scale level, whereas progressive decomposition of biopolymers in the shells and fusion of nanoparticulate calcite crystals was detected on the nanometre scale. ...","publication_date":{"day":null,"month":null,"year":2018,"errors":{}},"publication_name":"Data in brief"},"translated_abstract":"The present data in brief article provides additional data and information to our research article \u0026quot;Micro- and nanostructures reflect the degree of diagenetic alteration in modern and fossil brachiopod shell calcite: a multi-analytical screening approach (CL, FE-SEM, AFM, EBSD)\u0026quot; [1] (Casella et al.). We present fibre morphology, nano- and microstructure, as well as calcite crystal orientations and textures found in pristine, experimentally altered (hydrothermal and thermal), and diagenetically overprinted brachiopod shells. Combination of the screening tools AFM, FE-SEM, and EBSD allows to observe a significant change in microstructural and textural features with an increasing degree of laboratory-based and naturally occurring diagenetic alteration. Amalgamation of neighbouring fibres was observed on the micrometre scale level, whereas progressive decomposition of biopolymers in the shells and fusion of nanoparticulate calcite crystals was detected on the nanometre scale. ...","internal_url":"https://www.academia.edu/64846920/Archival_biogenic_micro_and_nanostructure_data_analysis_Signatures_of_diagenetic_systems","translated_internal_url":"","created_at":"2021-12-17T07:28:45.618-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":32498626,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":76691310,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/76691310/thumbnails/1.jpg","file_name":"Casella.pdf","download_url":"https://www.academia.edu/attachments/76691310/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Archival_biogenic_micro_and_nanostructur.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/76691310/Casella-libre.pdf?1639757530=\u0026response-content-disposition=attachment%3B+filename%3DArchival_biogenic_micro_and_nanostructur.pdf\u0026Expires=1733220727\u0026Signature=XqcvoYqCx~~UPgmTi8kaVnQFSVjPGy~ZCoug-Hhw-p78cGIdZELAQLGZX7STA742Vf2P0xLHKGnPgexmdTceNnmWRNnpMDW2X1HYu~K-CcA7QMdAR1hlBKCy1xf4ryahD2HzCe95gGPyehEoVGsZJ--YLmr4Ro-ybxCAlvVlOytDu1Uz9jbaGDBBKarE7oVPdcHoM8voxSMdo91KXuwXiCK~Jw0bz-YhFhdgLhFbl7tHAjM6l25fA20fHoqnPG54Tv5zehO7v9HSMsIrLHzgPua23PLa~620P4wxC3Lls6Qd6klv11oU6nD6R~srdYYBAlBcQYijJyr3HbfpfPddag__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Archival_biogenic_micro_and_nanostructure_data_analysis_Signatures_of_diagenetic_systems","translated_slug":"","page_count":13,"language":"en","content_type":"Work","owner":{"id":32498626,"first_name":"Uwe","middle_initials":null,"last_name":"Brand","page_name":"UweBrand","domain_name":"brocku","created_at":"2015-06-24T07:20:03.498-07:00","display_name":"Uwe Brand","url":"https://brocku.academia.edu/UweBrand"},"attachments":[{"id":76691310,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/76691310/thumbnails/1.jpg","file_name":"Casella.pdf","download_url":"https://www.academia.edu/attachments/76691310/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Archival_biogenic_micro_and_nanostructur.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/76691310/Casella-libre.pdf?1639757530=\u0026response-content-disposition=attachment%3B+filename%3DArchival_biogenic_micro_and_nanostructur.pdf\u0026Expires=1733220727\u0026Signature=XqcvoYqCx~~UPgmTi8kaVnQFSVjPGy~ZCoug-Hhw-p78cGIdZELAQLGZX7STA742Vf2P0xLHKGnPgexmdTceNnmWRNnpMDW2X1HYu~K-CcA7QMdAR1hlBKCy1xf4ryahD2HzCe95gGPyehEoVGsZJ--YLmr4Ro-ybxCAlvVlOytDu1Uz9jbaGDBBKarE7oVPdcHoM8voxSMdo91KXuwXiCK~Jw0bz-YhFhdgLhFbl7tHAjM6l25fA20fHoqnPG54Tv5zehO7v9HSMsIrLHzgPua23PLa~620P4wxC3Lls6Qd6klv11oU6nD6R~srdYYBAlBcQYijJyr3HbfpfPddag__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":511,"name":"Materials Science","url":"https://www.academia.edu/Documents/in/Materials_Science"},{"id":26327,"name":"Medicine","url":"https://www.academia.edu/Documents/in/Medicine"}],"urls":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="64846919"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/64846919/Mapping_of_recent_brachiopod_microstructure_A_tool_for_environmental_studies"><img alt="Research paper thumbnail of Mapping of recent brachiopod microstructure: A tool for environmental studies" class="work-thumbnail" src="https://attachments.academia-assets.com/76691311/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/64846919/Mapping_of_recent_brachiopod_microstructure_A_tool_for_environmental_studies">Mapping of recent brachiopod microstructure: A tool for environmental studies</a></div><div class="wp-workCard_item"><span>Journal of structural biology</span><span>, Jan 23, 2017</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Shells of brachiopods are excellent archives for environmental reconstructions in the recent and ...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Shells of brachiopods are excellent archives for environmental reconstructions in the recent and distant past as their microstructure and geochemistry respond to climate and environmental forcings. We studied the morphology and size of the basic structural unit, the secondary layer fibre, of the shells of several extant brachiopod taxa to derive a model correlating microstructural patterns to environmental conditions. Twenty-one adult specimens of six recent brachiopod species adapted to different environmental conditions, from Antarctica, to New Zealand, to the Mediterranean Sea, were chosen for microstructural analysis using SEM, TEM and EBSD. We conclude that: 1) there is no significant difference in the shape and size of the fibres between ventral and dorsal valves, 2) there is an ontogenetic trend in the shape and size of the fibres, as they become larger, wider, and flatter with increasing age. This indicates that the fibrous layer produced in the later stages of growth, which...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="f7863f113e922a75905e2f67862d9659" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":76691311,"asset_id":64846919,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/76691311/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="64846919"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="64846919"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 64846919; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=64846919]").text(description); $(".js-view-count[data-work-id=64846919]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 64846919; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='64846919']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 64846919, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "f7863f113e922a75905e2f67862d9659" } } $('.js-work-strip[data-work-id=64846919]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":64846919,"title":"Mapping of recent brachiopod microstructure: A tool for environmental studies","translated_title":"","metadata":{"abstract":"Shells of brachiopods are excellent archives for environmental reconstructions in the recent and distant past as their microstructure and geochemistry respond to climate and environmental forcings. We studied the morphology and size of the basic structural unit, the secondary layer fibre, of the shells of several extant brachiopod taxa to derive a model correlating microstructural patterns to environmental conditions. Twenty-one adult specimens of six recent brachiopod species adapted to different environmental conditions, from Antarctica, to New Zealand, to the Mediterranean Sea, were chosen for microstructural analysis using SEM, TEM and EBSD. We conclude that: 1) there is no significant difference in the shape and size of the fibres between ventral and dorsal valves, 2) there is an ontogenetic trend in the shape and size of the fibres, as they become larger, wider, and flatter with increasing age. This indicates that the fibrous layer produced in the later stages of growth, which...","ai_title_tag":"Brachiopod Microstructure as a Tool for Environmental Reconstruction","publication_date":{"day":23,"month":1,"year":2017,"errors":{}},"publication_name":"Journal of structural biology"},"translated_abstract":"Shells of brachiopods are excellent archives for environmental reconstructions in the recent and distant past as their microstructure and geochemistry respond to climate and environmental forcings. We studied the morphology and size of the basic structural unit, the secondary layer fibre, of the shells of several extant brachiopod taxa to derive a model correlating microstructural patterns to environmental conditions. Twenty-one adult specimens of six recent brachiopod species adapted to different environmental conditions, from Antarctica, to New Zealand, to the Mediterranean Sea, were chosen for microstructural analysis using SEM, TEM and EBSD. We conclude that: 1) there is no significant difference in the shape and size of the fibres between ventral and dorsal valves, 2) there is an ontogenetic trend in the shape and size of the fibres, as they become larger, wider, and flatter with increasing age. This indicates that the fibrous layer produced in the later stages of growth, which...","internal_url":"https://www.academia.edu/64846919/Mapping_of_recent_brachiopod_microstructure_A_tool_for_environmental_studies","translated_internal_url":"","created_at":"2021-12-17T07:28:45.477-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":32498626,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":76691311,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/76691311/thumbnails/1.jpg","file_name":"1-s2.0-S104784771730206X-main.pdf","download_url":"https://www.academia.edu/attachments/76691311/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Mapping_of_recent_brachiopod_microstruct.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/76691311/1-s2.0-S104784771730206X-main-libre.pdf?1639757531=\u0026response-content-disposition=attachment%3B+filename%3DMapping_of_recent_brachiopod_microstruct.pdf\u0026Expires=1733220727\u0026Signature=G9nkYUjwoDSydFyMzCqYz405gTYba-3pupBi6pX1u1ZWLbR9x774rvWykbh~XintDN-q3P86fSEs6H3I~7Xp9rAHMe2Z6YYgYdv~vuyLvuAttjw~AMQRHpQdVeBGSRtDBrYG8-rW9a81-zVTAik8chp444DUyT5lkt25Br9Xt2IWNDF1nbxMj8oq3vS3zfXEG38Rw7X1kMlGOcDGevhz6A1ymUo0a6hyQ4k1qAVZmOetdbnocuxHZI33va0DqgCnZMp1V9Vm~ov0bnH1QbT2yZ89cmzVEN79C7uIjG9zUM9xVv8pk9l2aAzD-kGQ2vnFd12CuS1l1CqeW9y4Nb7nqQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Mapping_of_recent_brachiopod_microstructure_A_tool_for_environmental_studies","translated_slug":"","page_count":16,"language":"en","content_type":"Work","owner":{"id":32498626,"first_name":"Uwe","middle_initials":null,"last_name":"Brand","page_name":"UweBrand","domain_name":"brocku","created_at":"2015-06-24T07:20:03.498-07:00","display_name":"Uwe Brand","url":"https://brocku.academia.edu/UweBrand"},"attachments":[{"id":76691311,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/76691311/thumbnails/1.jpg","file_name":"1-s2.0-S104784771730206X-main.pdf","download_url":"https://www.academia.edu/attachments/76691311/download_file?st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&st=MTczMzIxNzEyNyw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Mapping_of_recent_brachiopod_microstruct.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/76691311/1-s2.0-S104784771730206X-main-libre.pdf?1639757531=\u0026response-content-disposition=attachment%3B+filename%3DMapping_of_recent_brachiopod_microstruct.pdf\u0026Expires=1733220727\u0026Signature=G9nkYUjwoDSydFyMzCqYz405gTYba-3pupBi6pX1u1ZWLbR9x774rvWykbh~XintDN-q3P86fSEs6H3I~7Xp9rAHMe2Z6YYgYdv~vuyLvuAttjw~AMQRHpQdVeBGSRtDBrYG8-rW9a81-zVTAik8chp444DUyT5lkt25Br9Xt2IWNDF1nbxMj8oq3vS3zfXEG38Rw7X1kMlGOcDGevhz6A1ymUo0a6hyQ4k1qAVZmOetdbnocuxHZI33va0DqgCnZMp1V9Vm~ov0bnH1QbT2yZ89cmzVEN79C7uIjG9zUM9xVv8pk9l2aAzD-kGQ2vnFd12CuS1l1CqeW9y4Nb7nqQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":406,"name":"Geology","url":"https://www.academia.edu/Documents/in/Geology"},{"id":2541,"name":"Structural Biology","url":"https://www.academia.edu/Documents/in/Structural_Biology"},{"id":7710,"name":"Biology","url":"https://www.academia.edu/Documents/in/Biology"},{"id":26327,"name":"Medicine","url":"https://www.academia.edu/Documents/in/Medicine"},{"id":1681026,"name":"Biochemistry and cell biology","url":"https://www.academia.edu/Documents/in/Biochemistry_and_cell_biology"}],"urls":[]}, dispatcherData: dispatcherData }); 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BV, Amsterdam Printed in The Netherlands ISOTOPIC AND ELEMENTAL GEOCHEMISTRY OF MARINE INVERT...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">... BV, Amsterdam Printed in The Netherlands ISOTOPIC AND ELEMENTAL GEOCHEMISTRY OF MARINE INVERTEBRATES FROM THE LATE QUATERNARY FORT LANGLEY FORMATION AND ... 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