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Nottingham</p></div></div><div class="suggested-user-card"><div class="suggested-user-card__avatar social-profile-avatar-container"><a href="https://leicester.academia.edu/melanieleng"><img class="profile-avatar u-positionAbsolute" border="0" alt="" src="//a.academia-assets.com/images/s200_no_pic.png" /></a></div><div class="suggested-user-card__user-info"><a class="suggested-user-card__user-info__header ds2-5-body-sm-bold ds2-5-body-link" href="https://leicester.academia.edu/melanieleng">melanie leng</a><p class="suggested-user-card__user-info__subheader ds2-5-body-xs">University of Leicester</p></div></div></ul></div><div class="ri-section"><div class="ri-section-header"><span>Interests</span><a class="ri-more-link js-profile-ri-list-card" data-click-track="profile-user-info-primary-research-interest" data-has-card-for-ri-list="1202643">View All (7)</a></div><div class="ri-tags-container"><a data-click-track="profile-user-info-expand-research-interests" data-has-card-for-ri-list="1202643" href="https://www.academia.edu/Documents/in/Stable_Isotope_Geochemistry"><div id="js-react-on-rails-context" style="display:none" data-rails-context="{"inMailer":false,"i18nLocale":"en","i18nDefaultLocale":"en","href":"https://nottingham.academia.edu/GeorgeSwann","location":"/GeorgeSwann","scheme":"https","host":"nottingham.academia.edu","port":null,"pathname":"/GeorgeSwann","search":null,"httpAcceptLanguage":null,"serverSide":false}"></div> <div class="js-react-on-rails-component" style="display:none" data-component-name="Pill" data-props="{"color":"gray","children":["Stable Isotope Geochemistry"]}" data-trace="false" data-dom-id="Pill-react-component-8bd2af2f-64cb-4d2d-a4b2-3ac347e14ce4"></div> <div id="Pill-react-component-8bd2af2f-64cb-4d2d-a4b2-3ac347e14ce4"></div> </a><a data-click-track="profile-user-info-expand-research-interests" data-has-card-for-ri-list="1202643" href="https://www.academia.edu/Documents/in/Diatoms"><div 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style="display:none" data-component-name="Pill" data-props="{"color":"gray","children":["Paleolimnology"]}" data-trace="false" data-dom-id="Pill-react-component-5ded478e-97ec-4971-a326-dbfd054de0ff"></div> <div id="Pill-react-component-5ded478e-97ec-4971-a326-dbfd054de0ff"></div> </a><a data-click-track="profile-user-info-expand-research-interests" data-has-card-for-ri-list="1202643" href="https://www.academia.edu/Documents/in/Paleoclimatology"><div class="js-react-on-rails-component" style="display:none" data-component-name="Pill" data-props="{"color":"gray","children":["Paleoclimatology"]}" data-trace="false" data-dom-id="Pill-react-component-d20c7bc9-e568-46ac-a92e-d22af776dd79"></div> <div id="Pill-react-component-d20c7bc9-e568-46ac-a92e-d22af776dd79"></div> </a></div></div><div class="external-links-container"><ul class="profile-links new-profile js-UserInfo-social"><li class="profile-profiles js-social-profiles-container"><i class="fa fa-spin 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class="work-thumbnail" src="https://attachments.academia-assets.com/8652033/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/1381128/Stable_isotopes_in_diatom_silica">Stable isotopes in diatom silica</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Nottingham NG12 5GG UK gean@bgs.ac.uk 3/28 1987; in marine and lacustrine systems have failed to ...</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">Nottingham NG12 5GG UK <a href="mailto:gean@bgs.ac.uk" rel="nofollow">gean@bgs.ac.uk</a> 3/28 1987; in marine and lacustrine systems have failed to find evidence of any isotope/disequilibrium vital effect either within or between individual diatom taxa.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="9d0b60cf7dbe08620a1b8cb71903d961" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":8652033,"asset_id":1381128,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/8652033/download_file?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="1381128"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa 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silica","internal_url":"https://www.academia.edu/1381128/Stable_isotopes_in_diatom_silica","owner_id":1202643,"coauthors_can_edit":true,"owner":{"id":1202643,"first_name":"George","middle_initials":null,"last_name":"Swann","page_name":"GeorgeSwann","domain_name":"nottingham","created_at":"2012-02-12T16:22:44.172-08:00","display_name":"George 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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="1381127"><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/1381127/A_comparison_of_the_Si_Al_and_Si_time_wet_alkaline_digestion_methods_for_measurement_of_biogenic_silica_in_lake_sediments"><img alt="Research paper thumbnail of A comparison of the Si/Al and Si/time wet-alkaline digestion methods for measurement of biogenic silica in lake sediments" class="work-thumbnail" src="https://attachments.academia-assets.com/8652032/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/1381127/A_comparison_of_the_Si_Al_and_Si_time_wet_alkaline_digestion_methods_for_measurement_of_biogenic_silica_in_lake_sediments">A comparison of the Si/Al and Si/time wet-alkaline digestion methods for measurement of biogenic silica in lake sediments</a></div><div class="wp-workCard_item"><span>Journal of Paleolimnology</span><span>, Jan 1, 2010</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Existing techniques for measuring sediment Biogenic Silica (BSi) concentrations rely largely on c...</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">Existing techniques for measuring sediment Biogenic Silica (BSi) concentrations rely largely on conventional (Si-only) wet-alkaline digestion methods. Although results have provided detailed palaeoenvironmental information, potential errors can arise in accounting for sources of non-BSi. Here, I compare a conventional Si-only method to a Si/Al wet-alkaline digestion method, which in theory provides a more robust correction for concentrations of non-BSi. Late glacial/Holocene-aged sediment from Lake Baikal, Russia was used for the comparison. Results showed no significant difference between the two techniques, indicating that existing Si-only BSi methods are suitable for reconstructing environmental changes when levels of digested non-BSi are low to moderate.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="939ada716ef02aac73793185d54b02e0" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":8652032,"asset_id":1381127,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/8652032/download_file?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="1381127"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381127"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381127; 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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="1381126"><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/1381126/Iron_fertilisation_and_biogeochemical_cycles_in_the_sub_Arctic_northwest_Pacific_during_the_late_Pliocene_intensification_of_northern_hemisphere_glaciation"><img alt="Research paper thumbnail of Iron fertilisation and biogeochemical cycles in the sub-Arctic northwest Pacific during the late Pliocene intensification of northern hemisphere glaciation" 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/1381126/Iron_fertilisation_and_biogeochemical_cycles_in_the_sub_Arctic_northwest_Pacific_during_the_late_Pliocene_intensification_of_northern_hemisphere_glaciation">Iron fertilisation and biogeochemical cycles in the sub-Arctic northwest Pacific during the late Pliocene intensification of northern hemisphere glaciation</a></div><div class="wp-workCard_item"><span>Earth and …</span><span>, Jan 1, 2011</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="bd131a0b88f0d0297043daa39853e322" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":8652031,"asset_id":1381126,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/8652031/download_file?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="1381126"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381126"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381126; 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "bd131a0b88f0d0297043daa39853e322" } } $('.js-work-strip[data-work-id=1381126]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":1381126,"title":"Iron fertilisation and biogeochemical cycles in the sub-Arctic northwest Pacific during the late Pliocene intensification of northern hemisphere glaciation","internal_url":"https://www.academia.edu/1381126/Iron_fertilisation_and_biogeochemical_cycles_in_the_sub_Arctic_northwest_Pacific_during_the_late_Pliocene_intensification_of_northern_hemisphere_glaciation","owner_id":1202643,"coauthors_can_edit":true,"owner":{"id":1202643,"first_name":"George","middle_initials":null,"last_name":"Swann","page_name":"GeorgeSwann","domain_name":"nottingham","created_at":"2012-02-12T16:22:44.172-08:00","display_name":"George Swann","url":"https://nottingham.academia.edu/GeorgeSwann"},"attachments":[{"id":8652031,"title":"","file_type":"","scribd_thumbnail_url":"https://a.academia-assets.com/images/blank-paper.jpg","file_name":"","download_url":"https://www.academia.edu/attachments/8652031/download_file","bulk_download_file_name":"Iron_fertilisation_and_biogeochemical_cy","bulk_download_url":"academia.edu"}]}, 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="1381125"><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/1381125/A_reassessment_of_late_glacial_Holocene_diatom_oxygen_isotope_record_from_Lake_Baikal_using_a_geochemical_mass_balance_approach"><img alt="Research paper thumbnail of A reassessment of late glacialHolocene diatom oxygen isotope record from Lake Baikal using a geochemical mass‐balance approach" class="work-thumbnail" src="https://attachments.academia-assets.com/51001884/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/1381125/A_reassessment_of_late_glacial_Holocene_diatom_oxygen_isotope_record_from_Lake_Baikal_using_a_geochemical_mass_balance_approach">A reassessment of late glacialHolocene diatom oxygen isotope record from Lake Baikal using a geochemical mass‐balance approach</a></div><div class="wp-workCard_item"><span>Journal of …</span><span>, Jan 1, 2011</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">We present a new palaeoenvironmental record of hydrological variability in Lake Baikal, based on ...</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 a new palaeoenvironmental record of hydrological variability in Lake Baikal, based on re-modelled d 18 O diatom values of diatom silica (d 18 O modelled ), where the residual contaminants are identified and compensated for using electron optical imaging and whole-sample geochemistry. d 18 O modelled interpretations are based on the balance between rivers with high d 18 O values and rivers with low d 18 O values. Isotopic variability is related to latitudinal differences in precipitation which feed these rivers. The d 18 O modelled record suggests that rather moist conditions prevailed in the Lake Baikal region during the latter stages of the Younger Dryas. Throughout the Holocene, episodes of low d 18 O modelled values are, in general, in good agreement with increases in percentage haematite-stained grains in North Atlantic sediments (indicative of ice-rafted debris events). Rivers with southerly catchments dominate fluvial input especially between c. 3.3 and 2 cal ka BP, concurrent with high precipitation in the Lake Baikal region.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="36443d2eaac4ba07ebf3738df45c0191" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":51001884,"asset_id":1381125,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/51001884/download_file?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="1381125"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381125"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381125; 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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="1381124"><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/1381124/Lake_Baikal_climatic_record_between_310_and_50_ky_BP_Interplay_between_diatoms_watershed_weathering_and_orbital_forcing"><img alt="Research paper thumbnail of Lake Baikal climatic record between 310 and 50 ky BP: Interplay between diatoms, watershed weathering and orbital forcing" class="work-thumbnail" src="https://attachments.academia-assets.com/8652029/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/1381124/Lake_Baikal_climatic_record_between_310_and_50_ky_BP_Interplay_between_diatoms_watershed_weathering_and_orbital_forcing">Lake Baikal climatic record between 310 and 50 ky BP: Interplay between diatoms, watershed weathering and orbital forcing</a></div><div class="wp-workCard_item"><span>Palaeogeography, …</span><span>, Jan 1, 2007</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The environmental record from Lake Baikal, Russia, from 310 to 50 ky BP (MIS 9a to MIS 3) was int...</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 environmental record from Lake Baikal, Russia, from 310 to 50 ky BP (MIS 9a to MIS 3) was interpreted using rock magnetic, UV-Vis spectral, mineralogical, and diatom analyses. The age model was based on a correlation of the diatom and chemical weathering records and the summer insolation curve at 55°N and checked against an age model based on the proxy of relative palaeointensity of the Earth's magnetic field. Peaks in chemical weathering within the watershed, inferred from maximum concentration of magnetic and coloured minerals and mica, the lowest mean Fe oxidation state in silicates and highs in expandable clay minerals correlated with the Northern Hemisphere summer insolation minima at 55°N. Reconstructed changes in weathering intensity are better correlated to insolation patterns than to global ice volume records. We propose a scheme of yet missing palaeoenvironmental interpretation of the diatom assemblage, including also some extinct species. Aulacoseira baicalensis and Aulacoseira skvortzowii were abundant in the early stages of lake flora recovery immediately after deglaciation and during MIS 7e and MIS 5e; periods of more pronounced continental climate and peak chemical weathering. Stephanodiscus formosus var. minor, Cyclotella minuta and Cyclotella ornata dominated in intervals of decreased seasonality and decreased humidity at the end of most interglacial/interstadial diatom zones. Stephanodiscus grandis, Stephanodiscus carconeiformis and Stephanodiscus formosus were ubiquitous between MIS 8 and MIS 5, an interval marked by high seasonality, i.e., large differences between winter and summer insolation, and low humidity revealed by a low hydrolysis of expandable clay minerals in the watershed. Diatom concentrations peaked in the climatic optima of MIS 7e and MIS 5e and in the short periods marked by shifts to warmer conditions in the upper sections of MIS 5: MIS 5c (103-99 ky BP), MIS 5b (90-88 ky BP), and MIS 5a (84-79 ky BP) in which increased humidity resulted in enhanced hydrolysis of clay minerals. No such short similar climatic optimums were found from MIS 9a to MIS 6. Sharp climate deteriorations recorded in the diatom and clay mineral records at 107, 94, and 87 ky BP, however, occurred within 1-2 ky of cold extremes in North Atlantic sea surface temperature emphasizing the strong teleconnections between the two localities.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="443a6d55b269813fec59224d91487a3b" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":8652029,"asset_id":1381124,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/8652029/download_file?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="1381124"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381124"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381124; 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "443a6d55b269813fec59224d91487a3b" } } $('.js-work-strip[data-work-id=1381124]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":1381124,"title":"Lake Baikal climatic record between 310 and 50 ky BP: Interplay between diatoms, watershed weathering and orbital forcing","internal_url":"https://www.academia.edu/1381124/Lake_Baikal_climatic_record_between_310_and_50_ky_BP_Interplay_between_diatoms_watershed_weathering_and_orbital_forcing","owner_id":1202643,"coauthors_can_edit":true,"owner":{"id":1202643,"first_name":"George","middle_initials":null,"last_name":"Swann","page_name":"GeorgeSwann","domain_name":"nottingham","created_at":"2012-02-12T16:22:44.172-08:00","display_name":"George Swann","url":"https://nottingham.academia.edu/GeorgeSwann"},"attachments":[{"id":8652029,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/8652029/thumbnails/1.jpg","file_name":"ppp_baikal_3.pdf","download_url":"https://www.academia.edu/attachments/8652029/download_file","bulk_download_file_name":"Lake_Baikal_climatic_record_between_310.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/8652029/ppp_baikal_3-libre.pdf?1390856240=\u0026response-content-disposition=attachment%3B+filename%3DLake_Baikal_climatic_record_between_310.pdf\u0026Expires=1740575272\u0026Signature=QaEbSm~PHDmMV3lPrdKyVaWn8D2Dd18U4xDCInSc-5EDYd6qSSKbs0S0Y2EdCGbt0vjkWAujDF-Vvu7WNnQupb9bBJxZ487-8z~HsYuH9ZK5NWWq6pnDTOxXzegDumMBJWWmGTO~LrG7dxMUGzfUwpfvzk~fJCJR9brkwbYdrwiUEmeQD252UoUVSjrvjD05-wZ6b9D9ZD~GiJUkWp6kSfhBbmcDPHNJ09cfe8y9sgtjDwyMp0uMDfvz~ghkUySfxj303Jg92bhsr14N8muKiI5EZ-8Dtg1uZYTDBs1GKm-uqrHFOcO~hRw-KrdRCu1xoCf5TXq-Twd92ANQT~Opgw__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, 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="1381123"><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/1381123/Salinity_changes_in_the_North_West_Pacific_Ocean_during_the_late_Pliocene_early_Quaternary_from_2_73_Ma_to_2_52_Ma"><img alt="Research paper thumbnail of Salinity changes in the North West Pacific Ocean during the late Pliocene/early Quaternary from 2.73 Ma to 2.52 Ma" class="work-thumbnail" src="https://attachments.academia-assets.com/8652028/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/1381123/Salinity_changes_in_the_North_West_Pacific_Ocean_during_the_late_Pliocene_early_Quaternary_from_2_73_Ma_to_2_52_Ma">Salinity changes in the North West Pacific Ocean during the late Pliocene/early Quaternary from 2.73 Ma to 2.52 Ma</a></div><div class="wp-workCard_item"><span>Earth and Planetary Science Letters</span><span>, Jan 1, 2010</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Recent research has increasingly advocated a role for the North Pacific Ocean in modulating globa...</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 research has increasingly advocated a role for the North Pacific Ocean in modulating global climatic changes over both the last glacial cycle and further back into the geological record. Here a diatom δ 18 O record is presented from Ocean Drilling Program Site 882 over the Pliocene/Quaternary boundary from 2.73 Ma to 2.52 Ma (MIS G6-MIS 99). Large changes in δ 18 Odiatom of c. 4‰ from 2.73 Ma onwards are documented to occur on a timeframe broadly coinciding with glacial-interglacial cycles. These changes are primarily attributed to large scale inputs of meltwater from glacials surrounding the North Pacific Basin and</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="5a01faa1d2321bb8b174c76b7b82db77" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":8652028,"asset_id":1381123,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/8652028/download_file?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="1381123"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381123"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381123; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=1381123]").text(description); $(".js-view-count[data-work-id=1381123]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 1381123; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='1381123']"); 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></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.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: "5a01faa1d2321bb8b174c76b7b82db77" } } $('.js-work-strip[data-work-id=1381123]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":1381123,"title":"Salinity changes in the North West Pacific Ocean during the late Pliocene/early Quaternary from 2.73 Ma to 2.52 Ma","internal_url":"https://www.academia.edu/1381123/Salinity_changes_in_the_North_West_Pacific_Ocean_during_the_late_Pliocene_early_Quaternary_from_2_73_Ma_to_2_52_Ma","owner_id":1202643,"coauthors_can_edit":true,"owner":{"id":1202643,"first_name":"George","middle_initials":null,"last_name":"Swann","page_name":"GeorgeSwann","domain_name":"nottingham","created_at":"2012-02-12T16:22:44.172-08:00","display_name":"George Swann","url":"https://nottingham.academia.edu/GeorgeSwann"},"attachments":[{"id":8652028,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/8652028/thumbnails/1.jpg","file_name":"swann_et_al_2010.pdf","download_url":"https://www.academia.edu/attachments/8652028/download_file","bulk_download_file_name":"Salinity_changes_in_the_North_West_Pacif.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/8652028/swann_et_al_2010-libre.pdf?1390856237=\u0026response-content-disposition=attachment%3B+filename%3DSalinity_changes_in_the_North_West_Pacif.pdf\u0026Expires=1740575272\u0026Signature=HqPQk0swBgYG5kzamn90THcJ4N6Hw~sVMgulVFIge~OskdzjmizpH~vaLjpoUZSDQ7UP5PivpAixti3oSvMlHBiTMmLH~g8Xv0Wu4rXAVrE2req0mY9yO1Ntra1DugwKlJtcsWS6i8DbPGupN8LY5o2Djqbo5xNGgGM6tNPwrIkC9JJuzaIoqC8~R1cXfXvHtpmpBOr6fpwNewVIlApXtwWbANIgdhMZ7hyQJwJZeDUiQo~~0dEUvy0MXnEhHW140rnWLpZdMKSZOQKKjd66pmhky82Gt2~iPHFFqcv0OY3XO94BHStNZ7j4ioV15YN~LXhG0v-ZEDLCZFw6gDS6wg__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, 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="1381122"><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/1381122/A_combined_oxygen_and_silicon_diatom_isotope_record_of_Late_Quaternary_change_in_Lake_Elgygytgyn_North_East_Siberia"><img alt="Research paper thumbnail of A combined oxygen and silicon diatom isotope record of Late Quaternary change in Lake El'gygytgyn, North East Siberia" class="work-thumbnail" src="https://attachments.academia-assets.com/51001915/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/1381122/A_combined_oxygen_and_silicon_diatom_isotope_record_of_Late_Quaternary_change_in_Lake_Elgygytgyn_North_East_Siberia">A combined oxygen and silicon diatom isotope record of Late Quaternary change in Lake El'gygytgyn, North East Siberia</a></div><div class="wp-workCard_item"><span>Quaternary Science …</span><span>, Jan 1, 2010</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="794346608980fdf3f5c2fc0b19132fc5" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":51001915,"asset_id":1381122,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/51001915/download_file?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="1381122"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381122"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381122; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=1381122]").text(description); $(".js-view-count[data-work-id=1381122]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 1381122; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='1381122']"); 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></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.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: "794346608980fdf3f5c2fc0b19132fc5" } } $('.js-work-strip[data-work-id=1381122]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":1381122,"title":"A combined oxygen and silicon diatom isotope record of Late Quaternary change in Lake El'gygytgyn, North East Siberia","internal_url":"https://www.academia.edu/1381122/A_combined_oxygen_and_silicon_diatom_isotope_record_of_Late_Quaternary_change_in_Lake_Elgygytgyn_North_East_Siberia","owner_id":1202643,"coauthors_can_edit":true,"owner":{"id":1202643,"first_name":"George","middle_initials":null,"last_name":"Swann","page_name":"GeorgeSwann","domain_name":"nottingham","created_at":"2012-02-12T16:22:44.172-08:00","display_name":"George Swann","url":"https://nottingham.academia.edu/GeorgeSwann"},"attachments":[{"id":51001915,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/51001915/thumbnails/1.jpg","file_name":"A_combined_oxygen_and_silicon_diatom_iso20161221-10054-fgadqp.pdf","download_url":"https://www.academia.edu/attachments/51001915/download_file","bulk_download_file_name":"A_combined_oxygen_and_silicon_diatom_iso.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/51001915/A_combined_oxygen_and_silicon_diatom_iso20161221-10054-fgadqp-libre.pdf?1482337051=\u0026response-content-disposition=attachment%3B+filename%3DA_combined_oxygen_and_silicon_diatom_iso.pdf\u0026Expires=1740575272\u0026Signature=H8K8De~x-WzlzbvKVlR0wyP~jeZMZbv3myjtOrep3eXF6WsrwS9RsQ2oV3twNC18UbZn3llEh-HpE1BZXW0lgwwihCsYe5GXXfrkHB3DCxe5criu7ZSNOjrxa9Fhx-wxcwhuSAF4ncj6NSRE9bAvOGUcXu2ZxbtD3WWGvfwBvuWPh9djD1rTey0ZCsRInsGqwEZzqd5M7eM9k7QlvpBiGn2EsAobCzqS8Side1ZnDB2NA9AmXNGDgOLPXnsmGGtQhEaFGVyOH5O8bRj2y-iXjQqyDlbP5XN2AF5pTXnhaOq~EaA9mR17J3nQudrq9e0wfPQqachsfswB2wzEAS6XjA__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, 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="1381121"><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/1381121/The_potential_use_of_silicon_isotope_composition_of_biogenic_silica_as_a_proxy_for_environmental_change"><img alt="Research paper thumbnail of The potential use of silicon isotope composition of biogenic silica as a proxy for environmental change" class="work-thumbnail" src="https://attachments.academia-assets.com/51001921/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/1381121/The_potential_use_of_silicon_isotope_composition_of_biogenic_silica_as_a_proxy_for_environmental_change">The potential use of silicon isotope composition of biogenic silica as a proxy for environmental change</a></div><div class="wp-workCard_item"><span>Silicon</span><span>, Jan 1, 2009</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Silicon isotope geochemistry is a relatively new branch of environmental change research. Here we...</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">Silicon isotope geochemistry is a relatively new branch of environmental change research. Here we review the recent developments in the preparation of materials, analytical methods and applications of stable silicon isotope geochemistry in the most common types of biogenic silica currently being analysed. These materials are: diatom, radiolarian and siliceous sponges in lake and ocean sediments and plant phytoliths which are preserved in soils. Despite analyses of Si isotopes being carried out on rocks and minerals since the 1950's and the increasingly widespread use of Si isotopes since the 1990's, to date only a relatively small number of studies have applied Si isotope ratios to environmental change. In lake and ocean sediments the analysis of Si isotope ratios from biogenic materials has the potential to provide an important source of palaeoenvironmental infor-mation, especially where carbonates are not preserved. In plants and soils few studies have used Si isotopes, but important advances have recently been made in the understanding within plant fractionations. These may be useful in the application of Si isotopes in phytoliths to archaeological and palaeoenvironmental contexts.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="bd699e68149c518367141f23ee9c7c6e" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":51001921,"asset_id":1381121,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/51001921/download_file?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="1381121"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381121"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381121; 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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="1381117"><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/1381117/Diatom_oxygen_isotopes_evidence_of_a_species_effect_in_the_sediment_record"><img alt="Research paper thumbnail of Diatom oxygen isotopes: evidence of a species effect in the sediment record" class="work-thumbnail" src="https://attachments.academia-assets.com/8652027/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/1381117/Diatom_oxygen_isotopes_evidence_of_a_species_effect_in_the_sediment_record">Diatom oxygen isotopes: evidence of a species effect in the sediment record</a></div><div class="wp-workCard_item"><span>Geochemistry, …</span><span>, Jan 1, 2007</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">1] Diatom oxygen isotope measurements are commonly made on bulk mixed species assemblages due to ...</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">1] Diatom oxygen isotope measurements are commonly made on bulk mixed species assemblages due to the difficulty in purifying and separating individual taxa. As such, it is essential to understand processes in diatoms which may lead to isotope offsets both between and within individual species. Existing studies have suggested that mechanisms which may lead to isotopes offset in diatoms, such as vital effects, are either nonexistent or negligible. Here, we present a suite of diatom oxygen isotope data from the onset of major Northern Hemisphere Glaciation at ODP site 882 in the northwest Pacific Ocean which display large offsets (mean = 1.23%, max = 3.51%, error = 0.84%) between two different size fractions (75-150 mm and >150 mm) that are dominated by only two species: Coscinodiscus marginatus and Coscinodiscus radiatus. These offsets are most likely size related, although additional interspecies and intraspecies effects may also be important in determining the exact magnitude of the offsets. Consequently, considerable care is needed when interpreting bulk diatom oxygen isotope data in relation to paleoenvironmental change, especially when the amount of stratigraphical change within the isotopes is small.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="ffae0ffd91460fa5c3e1ba1faa584bc3" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":8652027,"asset_id":1381117,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/8652027/download_file?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="1381117"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381117"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381117; 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "ffae0ffd91460fa5c3e1ba1faa584bc3" } } $('.js-work-strip[data-work-id=1381117]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":1381117,"title":"Diatom oxygen isotopes: evidence of a species effect in the sediment record","internal_url":"https://www.academia.edu/1381117/Diatom_oxygen_isotopes_evidence_of_a_species_effect_in_the_sediment_record","owner_id":1202643,"coauthors_can_edit":true,"owner":{"id":1202643,"first_name":"George","middle_initials":null,"last_name":"Swann","page_name":"GeorgeSwann","domain_name":"nottingham","created_at":"2012-02-12T16:22:44.172-08:00","display_name":"George Swann","url":"https://nottingham.academia.edu/GeorgeSwann"},"attachments":[{"id":8652027,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/8652027/thumbnails/1.jpg","file_name":"2006gc001535.pdf","download_url":"https://www.academia.edu/attachments/8652027/download_file","bulk_download_file_name":"Diatom_oxygen_isotopes_evidence_of_a_spe.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/8652027/2006gc001535-libre.pdf?1390856255=\u0026response-content-disposition=attachment%3B+filename%3DDiatom_oxygen_isotopes_evidence_of_a_spe.pdf\u0026Expires=1740575272\u0026Signature=dFdvUC1zHbmJ5nAwKMqA68-Cj1BK4dUB6f-Xy~fWuKph7CY1MwtwGxn7KlW42OqxBsrxL~Zi3fy~tfNwvM-5g2prBptUYxWlD4jRHZk5FN0doRc50y3bKM-Pcu1Wa~eZXxiOw7Nt8Pn~u8mMpavTeGHETd4qsQ67xK2YaQjBRsueZbmiUtcDFSF42CLViJC6HDrQj6ZGl1MN9Uv51QESttGRuxLMd~vWiBdg2EQnyHssgLP~rBuKdufRvbuJ~K9wToDcatIzSDQWsbrAAGOMxtaOzqEFPvflrbDark-yRRIAbc9rPcB7PPEYaW8cMEBBYbr3qpthomMubxk0MHG3QA__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, 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="1381116"><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/1381116/A_review_of_diatom_delta_18O_in_palaeoceanography"><img alt="Research paper thumbnail of A review of diatom [delta] 18O in palaeoceanography" 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/1381116/A_review_of_diatom_delta_18O_in_palaeoceanography">A review of diatom [delta] 18O in palaeoceanography</a></div><div class="wp-workCard_item"><span>Quaternary Science Reviews</span><span>, Jan 1, 2009</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">... with other proxies it has proven possible to reconstruct, amongst other variables, changes in...</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">... with other proxies it has proven possible to reconstruct, amongst other variables, changes in deep water formation, surface and bottom water temperature, salinity, global ice volume and water column stratification (eg, [Mulitza et al., 1997], [Barrera and Johnson, 1999], [Niebler ...</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="1381116"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381116"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381116; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=1381116]").text(description); $(".js-view-count[data-work-id=1381116]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 1381116; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='1381116']"); 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></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.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" } } $('.js-work-strip[data-work-id=1381116]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":1381116,"title":"A review of diatom [delta] 18O in palaeoceanography","internal_url":"https://www.academia.edu/1381116/A_review_of_diatom_delta_18O_in_palaeoceanography","owner_id":1202643,"coauthors_can_edit":true,"owner":{"id":1202643,"first_name":"George","middle_initials":null,"last_name":"Swann","page_name":"GeorgeSwann","domain_name":"nottingham","created_at":"2012-02-12T16:22:44.172-08:00","display_name":"George Swann","url":"https://nottingham.academia.edu/GeorgeSwann"},"attachments":[]}, 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="1381115"><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/1381115/Diatom_%CE%B418O_evidence_for_the_development_of_the_modern_halocline_system_in_the_subarctic_northwest_Pacific_at_the_onset_of_major_Northern_Hemisphere_glaciation"><img alt="Research paper thumbnail of Diatom δ18O evidence for the development of the modern halocline system in the subarctic northwest Pacific at the onset of major Northern Hemisphere glaciation" class="work-thumbnail" src="https://attachments.academia-assets.com/51001891/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/1381115/Diatom_%CE%B418O_evidence_for_the_development_of_the_modern_halocline_system_in_the_subarctic_northwest_Pacific_at_the_onset_of_major_Northern_Hemisphere_glaciation">Diatom δ18O evidence for the development of the modern halocline system in the subarctic northwest Pacific at the onset of major Northern Hemisphere glaciation</a></div><div class="wp-workCard_item"><span>Paleoceanography</span><span>, Jan 1, 2006</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">1] Establishing a time frame for the development of the modern halocline and stratified water col...</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">1] Establishing a time frame for the development of the modern halocline and stratified water column in the subarctic North Pacific has significant paleoclimatic implications. Here we present a d 18 O (diatom) record consisting of only two species that represents autumn/winter conditions in the region across the onset of major Northern Hemisphere glaciation boundary. At circa 2.73 Ma a decrease in d 18 O (diatom) of 4.6% occurs, whereas previously published d 18 O (foram) results show a 2.6% increase. The d 18 O (diatom) and U 37 k sea surface reconstructions indicate both a significant freshening of 2-4 practical salinity units and an increase in surface temperatures in the summer to early winter period from circa 2.73 Ma onward. In contrast, the concomitant increase in d 18 O (foram) is likely to be reflective of conditions beneath the mesothermal structure and/or spring conditions when warmer sea surface temperatures are not present in the region. These results are consistent with the development of the modern halocline system at 2.73 Ma with year-round stratification of the water column and a strengthened seasonal thermocline during the summer to early winter period, resulting in one of the largest summer to winter temperature gradients in the open ocean. The onset of stratification would also have led to a warm pool of surface water from circa 2.73 Ma, which may have provided a potential source of extra moisture needed to supply the growing North American ice sheets at this time. Citation: Swann, G. E. A., M. A. Maslin, M. J. Leng, H. J. Sloane, and G. H. Haug (2006), Diatom d 18 O evidence for the development of the modern halocline system in the subarctic northwest Pacific at the onset of major Northern Hemisphere glaciation, Paleoceanography, 21, PA1009,</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="681c2601205bae9555635a127ed1536a" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":51001891,"asset_id":1381115,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/51001891/download_file?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="1381115"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381115"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381115; 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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="1381114"><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/1381114/Climatic_change_in_Central_Asia_during_MIS_3_2_a_case_study_using_biological_responses_from_Lake_Baikal"><img alt="Research paper thumbnail of Climatic change in Central Asia during MIS 3/2: a case study using biological responses from Lake Baikal" class="work-thumbnail" src="https://attachments.academia-assets.com/8652026/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/1381114/Climatic_change_in_Central_Asia_during_MIS_3_2_a_case_study_using_biological_responses_from_Lake_Baikal">Climatic change in Central Asia during MIS 3/2: a case study using biological responses from Lake Baikal</a></div><div class="wp-workCard_item"><span>Global and Planetary …</span><span>, Jan 1, 2005</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">A Marine Isotope Stage (MIS) 3/early MIS 2 section from a structural high along the east coast of...</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">A Marine Isotope Stage (MIS) 3/early MIS 2 section from a structural high along the east coast of the North Basin of Lake Baikal was analysed for diatoms, C/N ratios, and organic carbon isotope ratios. Diatoms were present throughout MIS 3 and early MIS 2, with high concentrations of the planktonic taxa Cyclotella sp. c.f. gracilis between 54 and 51.5 kyr BP indicating relatively warm, interstadial, conditions. Following a %TOC inferred climatic cooling between 43.2 and 39.1 kyr BP, evidence of a more muted y 13 C (organic) and %TOC inferred climatic warming from c. 39.1-34.7 kyr BP coincides with a period of very high diatom concentrations, indicating high aquatic productivity, at the Buguldeika Saddle in the South Basin of Lake Baikal. No evidence exists for a dKuzminT catchment erosional event in the North Basin during MIS 3. This, however, may reflect the location of the coring site away from major riverine inputs. Abrupt climatic cooling at the culmination of both warm phases in the North Basin are associated, on the basis of the palaeomagnetic age-model and correlations to existing sites in Lake Baikal, with the initiation of Heinrich events 5 (c. 50 kyr BP) and 4 (c. 35 kyr BP), respectively, in the North Atlantic. The amount of organic material declines across the MIS 3/MIS 2 transition while constant C/N ratios suggest organic material to be predominantly derived from phytoplankton. An increase in y 13 C (organic) at the MIS 3/MIS 2 transition may therefore indicate changes in aquatic productivity, pCO 2 or the inorganic carbon pool. D</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="2d713f346a19a9a1ac699c3dba736ae5" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":8652026,"asset_id":1381114,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/8652026/download_file?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="1381114"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381114"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381114; 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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="178492" id="papers"><div class="js-work-strip profile--work_container" data-work-id="1381128"><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/1381128/Stable_isotopes_in_diatom_silica"><img alt="Research paper thumbnail of Stable isotopes in diatom silica" class="work-thumbnail" src="https://attachments.academia-assets.com/8652033/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/1381128/Stable_isotopes_in_diatom_silica">Stable isotopes in diatom silica</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Nottingham NG12 5GG UK gean@bgs.ac.uk 3/28 1987; in marine and lacustrine systems have failed to ...</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">Nottingham NG12 5GG UK <a href="mailto:gean@bgs.ac.uk" rel="nofollow">gean@bgs.ac.uk</a> 3/28 1987; in marine and lacustrine systems have failed to find evidence of any isotope/disequilibrium vital effect either within or between individual diatom taxa.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="9d0b60cf7dbe08620a1b8cb71903d961" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":8652033,"asset_id":1381128,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/8652033/download_file?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="1381128"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381128"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381128; 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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="1381127"><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/1381127/A_comparison_of_the_Si_Al_and_Si_time_wet_alkaline_digestion_methods_for_measurement_of_biogenic_silica_in_lake_sediments"><img alt="Research paper thumbnail of A comparison of the Si/Al and Si/time wet-alkaline digestion methods for measurement of biogenic silica in lake sediments" class="work-thumbnail" src="https://attachments.academia-assets.com/8652032/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/1381127/A_comparison_of_the_Si_Al_and_Si_time_wet_alkaline_digestion_methods_for_measurement_of_biogenic_silica_in_lake_sediments">A comparison of the Si/Al and Si/time wet-alkaline digestion methods for measurement of biogenic silica in lake sediments</a></div><div class="wp-workCard_item"><span>Journal of Paleolimnology</span><span>, Jan 1, 2010</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Existing techniques for measuring sediment Biogenic Silica (BSi) concentrations rely largely on c...</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">Existing techniques for measuring sediment Biogenic Silica (BSi) concentrations rely largely on conventional (Si-only) wet-alkaline digestion methods. Although results have provided detailed palaeoenvironmental information, potential errors can arise in accounting for sources of non-BSi. Here, I compare a conventional Si-only method to a Si/Al wet-alkaline digestion method, which in theory provides a more robust correction for concentrations of non-BSi. Late glacial/Holocene-aged sediment from Lake Baikal, Russia was used for the comparison. Results showed no significant difference between the two techniques, indicating that existing Si-only BSi methods are suitable for reconstructing environmental changes when levels of digested non-BSi are low to moderate.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="939ada716ef02aac73793185d54b02e0" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":8652032,"asset_id":1381127,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/8652032/download_file?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="1381127"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381127"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381127; 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "939ada716ef02aac73793185d54b02e0" } } $('.js-work-strip[data-work-id=1381127]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":1381127,"title":"A comparison of the Si/Al and Si/time wet-alkaline digestion methods for measurement of biogenic silica in lake sediments","internal_url":"https://www.academia.edu/1381127/A_comparison_of_the_Si_Al_and_Si_time_wet_alkaline_digestion_methods_for_measurement_of_biogenic_silica_in_lake_sediments","owner_id":1202643,"coauthors_can_edit":true,"owner":{"id":1202643,"first_name":"George","middle_initials":null,"last_name":"Swann","page_name":"GeorgeSwann","domain_name":"nottingham","created_at":"2012-02-12T16:22:44.172-08:00","display_name":"George Swann","url":"https://nottingham.academia.edu/GeorgeSwann"},"attachments":[{"id":8652032,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/8652032/thumbnails/1.jpg","file_name":"swann_2010_text_uncorrected5b15d.pdf","download_url":"https://www.academia.edu/attachments/8652032/download_file","bulk_download_file_name":"A_comparison_of_the_Si_Al_and_Si_time_we.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/8652032/swann_2010_text_uncorrected5b15d-libre.pdf?1390856238=\u0026response-content-disposition=attachment%3B+filename%3DA_comparison_of_the_Si_Al_and_Si_time_we.pdf\u0026Expires=1740575272\u0026Signature=Xr3ozJaogkKJrQwvqpwiW2qiAu3M3-vSTUGv3IAMgHsyqcyWt76omYQcbCwnL1SDfC1ZIRSXP1ya~Rx4gL8LNkvALp5OOdaZ-G6ifnCG2T6cPo4xIb89nFMmOSZTVZAx35q-9gU6dU2Z0lfaXjKfaKYaHoC9mYIR8qnk5nyywX4gtwZLfGQPb3-UKqnLta30VXfaggP8QgSR2V86Dhc2aTX6ajPF-w35z5ic~W3cE~BoNiSvjBSRdNMUjTDb62n2Z7z7fLLI0J4-IabUFcMmh17yZTP705I9GE7yvn5B-iq2sb5Lw0vbT-kO53w5wD5mJejDWNK~xkx0PLPUF3XMhw__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, 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="1381126"><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/1381126/Iron_fertilisation_and_biogeochemical_cycles_in_the_sub_Arctic_northwest_Pacific_during_the_late_Pliocene_intensification_of_northern_hemisphere_glaciation"><img alt="Research paper thumbnail of Iron fertilisation and biogeochemical cycles in the sub-Arctic northwest Pacific during the late Pliocene intensification of northern hemisphere glaciation" 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/1381126/Iron_fertilisation_and_biogeochemical_cycles_in_the_sub_Arctic_northwest_Pacific_during_the_late_Pliocene_intensification_of_northern_hemisphere_glaciation">Iron fertilisation and biogeochemical cycles in the sub-Arctic northwest Pacific during the late Pliocene intensification of northern hemisphere glaciation</a></div><div class="wp-workCard_item"><span>Earth and …</span><span>, Jan 1, 2011</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="bd131a0b88f0d0297043daa39853e322" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":8652031,"asset_id":1381126,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/8652031/download_file?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="1381126"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381126"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381126; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=1381126]").text(description); $(".js-view-count[data-work-id=1381126]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 1381126; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='1381126']"); 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></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.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: "bd131a0b88f0d0297043daa39853e322" } } $('.js-work-strip[data-work-id=1381126]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":1381126,"title":"Iron fertilisation and biogeochemical cycles in the sub-Arctic northwest Pacific during the late Pliocene intensification of northern hemisphere glaciation","internal_url":"https://www.academia.edu/1381126/Iron_fertilisation_and_biogeochemical_cycles_in_the_sub_Arctic_northwest_Pacific_during_the_late_Pliocene_intensification_of_northern_hemisphere_glaciation","owner_id":1202643,"coauthors_can_edit":true,"owner":{"id":1202643,"first_name":"George","middle_initials":null,"last_name":"Swann","page_name":"GeorgeSwann","domain_name":"nottingham","created_at":"2012-02-12T16:22:44.172-08:00","display_name":"George Swann","url":"https://nottingham.academia.edu/GeorgeSwann"},"attachments":[{"id":8652031,"title":"","file_type":"","scribd_thumbnail_url":"https://a.academia-assets.com/images/blank-paper.jpg","file_name":"","download_url":"https://www.academia.edu/attachments/8652031/download_file","bulk_download_file_name":"Iron_fertilisation_and_biogeochemical_cy","bulk_download_url":"academia.edu"}]}, 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="1381125"><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/1381125/A_reassessment_of_late_glacial_Holocene_diatom_oxygen_isotope_record_from_Lake_Baikal_using_a_geochemical_mass_balance_approach"><img alt="Research paper thumbnail of A reassessment of late glacialHolocene diatom oxygen isotope record from Lake Baikal using a geochemical mass‐balance approach" class="work-thumbnail" src="https://attachments.academia-assets.com/51001884/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/1381125/A_reassessment_of_late_glacial_Holocene_diatom_oxygen_isotope_record_from_Lake_Baikal_using_a_geochemical_mass_balance_approach">A reassessment of late glacialHolocene diatom oxygen isotope record from Lake Baikal using a geochemical mass‐balance approach</a></div><div class="wp-workCard_item"><span>Journal of …</span><span>, Jan 1, 2011</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">We present a new palaeoenvironmental record of hydrological variability in Lake Baikal, based on ...</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 a new palaeoenvironmental record of hydrological variability in Lake Baikal, based on re-modelled d 18 O diatom values of diatom silica (d 18 O modelled ), where the residual contaminants are identified and compensated for using electron optical imaging and whole-sample geochemistry. d 18 O modelled interpretations are based on the balance between rivers with high d 18 O values and rivers with low d 18 O values. Isotopic variability is related to latitudinal differences in precipitation which feed these rivers. The d 18 O modelled record suggests that rather moist conditions prevailed in the Lake Baikal region during the latter stages of the Younger Dryas. Throughout the Holocene, episodes of low d 18 O modelled values are, in general, in good agreement with increases in percentage haematite-stained grains in North Atlantic sediments (indicative of ice-rafted debris events). Rivers with southerly catchments dominate fluvial input especially between c. 3.3 and 2 cal ka BP, concurrent with high precipitation in the Lake Baikal region.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="36443d2eaac4ba07ebf3738df45c0191" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":51001884,"asset_id":1381125,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/51001884/download_file?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="1381125"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381125"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381125; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=1381125]").text(description); $(".js-view-count[data-work-id=1381125]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 1381125; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='1381125']"); 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></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.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: "36443d2eaac4ba07ebf3738df45c0191" } } $('.js-work-strip[data-work-id=1381125]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":1381125,"title":"A reassessment of late glacialHolocene diatom oxygen isotope record from Lake Baikal using a geochemical mass‐balance approach","internal_url":"https://www.academia.edu/1381125/A_reassessment_of_late_glacial_Holocene_diatom_oxygen_isotope_record_from_Lake_Baikal_using_a_geochemical_mass_balance_approach","owner_id":1202643,"coauthors_can_edit":true,"owner":{"id":1202643,"first_name":"George","middle_initials":null,"last_name":"Swann","page_name":"GeorgeSwann","domain_name":"nottingham","created_at":"2012-02-12T16:22:44.172-08:00","display_name":"George Swann","url":"https://nottingham.academia.edu/GeorgeSwann"},"attachments":[{"id":51001884,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/51001884/thumbnails/1.jpg","file_name":"A_reassessment_of_late_glacial__Holocene20161221-10057-1m0bir2.pdf","download_url":"https://www.academia.edu/attachments/51001884/download_file","bulk_download_file_name":"A_reassessment_of_late_glacial_Holocene.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/51001884/A_reassessment_of_late_glacial__Holocene20161221-10057-1m0bir2-libre.pdf?1482337070=\u0026response-content-disposition=attachment%3B+filename%3DA_reassessment_of_late_glacial_Holocene.pdf\u0026Expires=1740575272\u0026Signature=O~I3mttT4oEQ4E1VFaH75xFT563XHbtyKFMI9gXsEgycWM~-PukJlCQ67a2qAwLGv9YptgPMqSc9e64Fw5r3lgkRRDHy80J83zBVzK8Zqv1vlKKPIV6OyxN8WrkUmjiUeBzmfkhQ16XK1ieJboiQ2c5gXDevtlj-hru662ydjEW82zNrums~h68o~ftWoUgolUecXs8AhvJoLazL~Zo23O9kpm4GaOZA~VkV9olX~GKGQxBhH3lOcRkWy~XsZ5xB8Zqq~sseEs7daLaNRlmIpmP06DQwQ5HiJ9u92nGRP17QaW5FkjFQA8IcCthCxQS9VtMcQw510j57Wv0g~3nreQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, 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="1381124"><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/1381124/Lake_Baikal_climatic_record_between_310_and_50_ky_BP_Interplay_between_diatoms_watershed_weathering_and_orbital_forcing"><img alt="Research paper thumbnail of Lake Baikal climatic record between 310 and 50 ky BP: Interplay between diatoms, watershed weathering and orbital forcing" class="work-thumbnail" src="https://attachments.academia-assets.com/8652029/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/1381124/Lake_Baikal_climatic_record_between_310_and_50_ky_BP_Interplay_between_diatoms_watershed_weathering_and_orbital_forcing">Lake Baikal climatic record between 310 and 50 ky BP: Interplay between diatoms, watershed weathering and orbital forcing</a></div><div class="wp-workCard_item"><span>Palaeogeography, …</span><span>, Jan 1, 2007</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The environmental record from Lake Baikal, Russia, from 310 to 50 ky BP (MIS 9a to MIS 3) was int...</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 environmental record from Lake Baikal, Russia, from 310 to 50 ky BP (MIS 9a to MIS 3) was interpreted using rock magnetic, UV-Vis spectral, mineralogical, and diatom analyses. The age model was based on a correlation of the diatom and chemical weathering records and the summer insolation curve at 55°N and checked against an age model based on the proxy of relative palaeointensity of the Earth's magnetic field. Peaks in chemical weathering within the watershed, inferred from maximum concentration of magnetic and coloured minerals and mica, the lowest mean Fe oxidation state in silicates and highs in expandable clay minerals correlated with the Northern Hemisphere summer insolation minima at 55°N. Reconstructed changes in weathering intensity are better correlated to insolation patterns than to global ice volume records. We propose a scheme of yet missing palaeoenvironmental interpretation of the diatom assemblage, including also some extinct species. Aulacoseira baicalensis and Aulacoseira skvortzowii were abundant in the early stages of lake flora recovery immediately after deglaciation and during MIS 7e and MIS 5e; periods of more pronounced continental climate and peak chemical weathering. Stephanodiscus formosus var. minor, Cyclotella minuta and Cyclotella ornata dominated in intervals of decreased seasonality and decreased humidity at the end of most interglacial/interstadial diatom zones. Stephanodiscus grandis, Stephanodiscus carconeiformis and Stephanodiscus formosus were ubiquitous between MIS 8 and MIS 5, an interval marked by high seasonality, i.e., large differences between winter and summer insolation, and low humidity revealed by a low hydrolysis of expandable clay minerals in the watershed. Diatom concentrations peaked in the climatic optima of MIS 7e and MIS 5e and in the short periods marked by shifts to warmer conditions in the upper sections of MIS 5: MIS 5c (103-99 ky BP), MIS 5b (90-88 ky BP), and MIS 5a (84-79 ky BP) in which increased humidity resulted in enhanced hydrolysis of clay minerals. No such short similar climatic optimums were found from MIS 9a to MIS 6. Sharp climate deteriorations recorded in the diatom and clay mineral records at 107, 94, and 87 ky BP, however, occurred within 1-2 ky of cold extremes in North Atlantic sea surface temperature emphasizing the strong teleconnections between the two localities.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="443a6d55b269813fec59224d91487a3b" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":8652029,"asset_id":1381124,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/8652029/download_file?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="1381124"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381124"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381124; 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "443a6d55b269813fec59224d91487a3b" } } $('.js-work-strip[data-work-id=1381124]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":1381124,"title":"Lake Baikal climatic record between 310 and 50 ky BP: Interplay between diatoms, watershed weathering and orbital forcing","internal_url":"https://www.academia.edu/1381124/Lake_Baikal_climatic_record_between_310_and_50_ky_BP_Interplay_between_diatoms_watershed_weathering_and_orbital_forcing","owner_id":1202643,"coauthors_can_edit":true,"owner":{"id":1202643,"first_name":"George","middle_initials":null,"last_name":"Swann","page_name":"GeorgeSwann","domain_name":"nottingham","created_at":"2012-02-12T16:22:44.172-08:00","display_name":"George Swann","url":"https://nottingham.academia.edu/GeorgeSwann"},"attachments":[{"id":8652029,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/8652029/thumbnails/1.jpg","file_name":"ppp_baikal_3.pdf","download_url":"https://www.academia.edu/attachments/8652029/download_file","bulk_download_file_name":"Lake_Baikal_climatic_record_between_310.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/8652029/ppp_baikal_3-libre.pdf?1390856240=\u0026response-content-disposition=attachment%3B+filename%3DLake_Baikal_climatic_record_between_310.pdf\u0026Expires=1740575272\u0026Signature=QaEbSm~PHDmMV3lPrdKyVaWn8D2Dd18U4xDCInSc-5EDYd6qSSKbs0S0Y2EdCGbt0vjkWAujDF-Vvu7WNnQupb9bBJxZ487-8z~HsYuH9ZK5NWWq6pnDTOxXzegDumMBJWWmGTO~LrG7dxMUGzfUwpfvzk~fJCJR9brkwbYdrwiUEmeQD252UoUVSjrvjD05-wZ6b9D9ZD~GiJUkWp6kSfhBbmcDPHNJ09cfe8y9sgtjDwyMp0uMDfvz~ghkUySfxj303Jg92bhsr14N8muKiI5EZ-8Dtg1uZYTDBs1GKm-uqrHFOcO~hRw-KrdRCu1xoCf5TXq-Twd92ANQT~Opgw__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, 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="1381123"><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/1381123/Salinity_changes_in_the_North_West_Pacific_Ocean_during_the_late_Pliocene_early_Quaternary_from_2_73_Ma_to_2_52_Ma"><img alt="Research paper thumbnail of Salinity changes in the North West Pacific Ocean during the late Pliocene/early Quaternary from 2.73 Ma to 2.52 Ma" class="work-thumbnail" src="https://attachments.academia-assets.com/8652028/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/1381123/Salinity_changes_in_the_North_West_Pacific_Ocean_during_the_late_Pliocene_early_Quaternary_from_2_73_Ma_to_2_52_Ma">Salinity changes in the North West Pacific Ocean during the late Pliocene/early Quaternary from 2.73 Ma to 2.52 Ma</a></div><div class="wp-workCard_item"><span>Earth and Planetary Science Letters</span><span>, Jan 1, 2010</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Recent research has increasingly advocated a role for the North Pacific Ocean in modulating globa...</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 research has increasingly advocated a role for the North Pacific Ocean in modulating global climatic changes over both the last glacial cycle and further back into the geological record. Here a diatom δ 18 O record is presented from Ocean Drilling Program Site 882 over the Pliocene/Quaternary boundary from 2.73 Ma to 2.52 Ma (MIS G6-MIS 99). Large changes in δ 18 Odiatom of c. 4‰ from 2.73 Ma onwards are documented to occur on a timeframe broadly coinciding with glacial-interglacial cycles. These changes are primarily attributed to large scale inputs of meltwater from glacials surrounding the North Pacific Basin and</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="5a01faa1d2321bb8b174c76b7b82db77" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":8652028,"asset_id":1381123,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/8652028/download_file?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="1381123"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381123"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381123; 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "5a01faa1d2321bb8b174c76b7b82db77" } } $('.js-work-strip[data-work-id=1381123]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":1381123,"title":"Salinity changes in the North West Pacific Ocean during the late Pliocene/early Quaternary from 2.73 Ma to 2.52 Ma","internal_url":"https://www.academia.edu/1381123/Salinity_changes_in_the_North_West_Pacific_Ocean_during_the_late_Pliocene_early_Quaternary_from_2_73_Ma_to_2_52_Ma","owner_id":1202643,"coauthors_can_edit":true,"owner":{"id":1202643,"first_name":"George","middle_initials":null,"last_name":"Swann","page_name":"GeorgeSwann","domain_name":"nottingham","created_at":"2012-02-12T16:22:44.172-08:00","display_name":"George Swann","url":"https://nottingham.academia.edu/GeorgeSwann"},"attachments":[{"id":8652028,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/8652028/thumbnails/1.jpg","file_name":"swann_et_al_2010.pdf","download_url":"https://www.academia.edu/attachments/8652028/download_file","bulk_download_file_name":"Salinity_changes_in_the_North_West_Pacif.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/8652028/swann_et_al_2010-libre.pdf?1390856237=\u0026response-content-disposition=attachment%3B+filename%3DSalinity_changes_in_the_North_West_Pacif.pdf\u0026Expires=1740575272\u0026Signature=HqPQk0swBgYG5kzamn90THcJ4N6Hw~sVMgulVFIge~OskdzjmizpH~vaLjpoUZSDQ7UP5PivpAixti3oSvMlHBiTMmLH~g8Xv0Wu4rXAVrE2req0mY9yO1Ntra1DugwKlJtcsWS6i8DbPGupN8LY5o2Djqbo5xNGgGM6tNPwrIkC9JJuzaIoqC8~R1cXfXvHtpmpBOr6fpwNewVIlApXtwWbANIgdhMZ7hyQJwJZeDUiQo~~0dEUvy0MXnEhHW140rnWLpZdMKSZOQKKjd66pmhky82Gt2~iPHFFqcv0OY3XO94BHStNZ7j4ioV15YN~LXhG0v-ZEDLCZFw6gDS6wg__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, 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="1381122"><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/1381122/A_combined_oxygen_and_silicon_diatom_isotope_record_of_Late_Quaternary_change_in_Lake_Elgygytgyn_North_East_Siberia"><img alt="Research paper thumbnail of A combined oxygen and silicon diatom isotope record of Late Quaternary change in Lake El'gygytgyn, North East Siberia" class="work-thumbnail" src="https://attachments.academia-assets.com/51001915/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/1381122/A_combined_oxygen_and_silicon_diatom_isotope_record_of_Late_Quaternary_change_in_Lake_Elgygytgyn_North_East_Siberia">A combined oxygen and silicon diatom isotope record of Late Quaternary change in Lake El'gygytgyn, North East Siberia</a></div><div class="wp-workCard_item"><span>Quaternary Science …</span><span>, Jan 1, 2010</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="794346608980fdf3f5c2fc0b19132fc5" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":51001915,"asset_id":1381122,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/51001915/download_file?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="1381122"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381122"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381122; 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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="1381121"><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/1381121/The_potential_use_of_silicon_isotope_composition_of_biogenic_silica_as_a_proxy_for_environmental_change"><img alt="Research paper thumbnail of The potential use of silicon isotope composition of biogenic silica as a proxy for environmental change" class="work-thumbnail" src="https://attachments.academia-assets.com/51001921/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/1381121/The_potential_use_of_silicon_isotope_composition_of_biogenic_silica_as_a_proxy_for_environmental_change">The potential use of silicon isotope composition of biogenic silica as a proxy for environmental change</a></div><div class="wp-workCard_item"><span>Silicon</span><span>, Jan 1, 2009</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Silicon isotope geochemistry is a relatively new branch of environmental change research. Here we...</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">Silicon isotope geochemistry is a relatively new branch of environmental change research. Here we review the recent developments in the preparation of materials, analytical methods and applications of stable silicon isotope geochemistry in the most common types of biogenic silica currently being analysed. These materials are: diatom, radiolarian and siliceous sponges in lake and ocean sediments and plant phytoliths which are preserved in soils. Despite analyses of Si isotopes being carried out on rocks and minerals since the 1950's and the increasingly widespread use of Si isotopes since the 1990's, to date only a relatively small number of studies have applied Si isotope ratios to environmental change. In lake and ocean sediments the analysis of Si isotope ratios from biogenic materials has the potential to provide an important source of palaeoenvironmental infor-mation, especially where carbonates are not preserved. In plants and soils few studies have used Si isotopes, but important advances have recently been made in the understanding within plant fractionations. These may be useful in the application of Si isotopes in phytoliths to archaeological and palaeoenvironmental contexts.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="bd699e68149c518367141f23ee9c7c6e" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":51001921,"asset_id":1381121,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/51001921/download_file?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="1381121"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381121"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381121; 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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="1381120"><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/1381120/Potential_limitations_of_biogenic_silica_as_an_indicator_of_abrupt_climate_change_in_Lake_Baikal_Russia"><img alt="Research paper thumbnail of Potential limitations of biogenic silica as an indicator of abrupt climate change in Lake Baikal, Russia" class="work-thumbnail" src="https://attachments.academia-assets.com/51001920/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/1381120/Potential_limitations_of_biogenic_silica_as_an_indicator_of_abrupt_climate_change_in_Lake_Baikal_Russia">Potential limitations of biogenic silica as an indicator of abrupt climate change in Lake Baikal, Russia</a></div><div class="wp-workCard_item"><span>Journal of Paleolimnology</span><span>, Jan 1, 2006</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">CITATIONS 8 READS 11 2 authors:</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="8194947460990ab9179d19ed9fd33b80" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":51001920,"asset_id":1381120,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/51001920/download_file?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="1381120"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381120"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381120; 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "8194947460990ab9179d19ed9fd33b80" } } $('.js-work-strip[data-work-id=1381120]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":1381120,"title":"Potential limitations of biogenic silica as an indicator of abrupt climate change in Lake Baikal, Russia","internal_url":"https://www.academia.edu/1381120/Potential_limitations_of_biogenic_silica_as_an_indicator_of_abrupt_climate_change_in_Lake_Baikal_Russia","owner_id":1202643,"coauthors_can_edit":true,"owner":{"id":1202643,"first_name":"George","middle_initials":null,"last_name":"Swann","page_name":"GeorgeSwann","domain_name":"nottingham","created_at":"2012-02-12T16:22:44.172-08:00","display_name":"George Swann","url":"https://nottingham.academia.edu/GeorgeSwann"},"attachments":[{"id":51001920,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/51001920/thumbnails/1.jpg","file_name":"Potential_limitations_of_biogenic_silica20161221-10054-11h14vz.pdf","download_url":"https://www.academia.edu/attachments/51001920/download_file","bulk_download_file_name":"Potential_limitations_of_biogenic_silica.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/51001920/Potential_limitations_of_biogenic_silica20161221-10054-11h14vz-libre.pdf?1482337039=\u0026response-content-disposition=attachment%3B+filename%3DPotential_limitations_of_biogenic_silica.pdf\u0026Expires=1740575272\u0026Signature=EHqjZQWFgklNP8i7U8HQDvzO-13Rl07jiUoY4TqN2-5Ws1kzWaFs8J5sm7UTQgJqi9VUbGqVHg4bEB7e~6R3~hEfm9RRrX6E8z9d4IIKdWtD0aozmjadcdzVfTvB3Mkvre~9SPyeNPrIBO1XRziOdBb9JNn7gvIBM-uvMH-IUcAg8Hlsf2erGG6ovw8fleegmLkc~~I6XueCIkC8-Xj9U1OdmYDtZSLNpL8OGq-0CPzEg0dEK7c3DbtIidb4zYmMa8AJ4C4tFZhdDMaqViPqufUlRmNB2dIXgjdaPg0bi9561stwXs5qyrsc77A4oXW2x458sgt78XuQwFnHdJSO0Q__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="1381119"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/1381119/Isotopes_in_marine_sediments"><img alt="Research paper thumbnail of Isotopes in marine sediments" class="work-thumbnail" src="https://attachments.academia-assets.com/51001881/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/1381119/Isotopes_in_marine_sediments">Isotopes in marine sediments</a></div><div class="wp-workCard_item"><span>Isotopes in Palaeoenvironmental Research</span><span>, Jan 1, 2006</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="dec8a6797f6e399d1ef31fd814c7b7d6" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":51001881,"asset_id":1381119,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/51001881/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="1381119"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381119"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381119; 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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="1381118"><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/1381118/Isotope_offsets_in_marine_diatom_%CE%B418O_over_the_last_200_ka"><img alt="Research paper thumbnail of Isotope offsets in marine diatom δ18O over the last 200 ka" class="work-thumbnail" src="https://attachments.academia-assets.com/51001904/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/1381118/Isotope_offsets_in_marine_diatom_%CE%B418O_over_the_last_200_ka">Isotope offsets in marine diatom δ18O over the last 200 ka</a></div><div class="wp-workCard_item"><span>Journal of Quaternary …</span><span>, Jan 1, 2008</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="0121aef18352e2d790e25988ce6020b1" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":51001904,"asset_id":1381118,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/51001904/download_file?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="1381118"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381118"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381118; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=1381118]").text(description); $(".js-view-count[data-work-id=1381118]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 1381118; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='1381118']"); 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></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.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: "0121aef18352e2d790e25988ce6020b1" } } $('.js-work-strip[data-work-id=1381118]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":1381118,"title":"Isotope offsets in marine diatom δ18O over the last 200 ka","internal_url":"https://www.academia.edu/1381118/Isotope_offsets_in_marine_diatom_%CE%B418O_over_the_last_200_ka","owner_id":1202643,"coauthors_can_edit":true,"owner":{"id":1202643,"first_name":"George","middle_initials":null,"last_name":"Swann","page_name":"GeorgeSwann","domain_name":"nottingham","created_at":"2012-02-12T16:22:44.172-08:00","display_name":"George Swann","url":"https://nottingham.academia.edu/GeorgeSwann"},"attachments":[{"id":51001904,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/51001904/thumbnails/1.jpg","file_name":"Isotope_offsets_in_marine_diatom_18O_ove20161221-10051-1pjrvt5.pdf","download_url":"https://www.academia.edu/attachments/51001904/download_file","bulk_download_file_name":"Isotope_offsets_in_marine_diatom_18O_ov.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/51001904/Isotope_offsets_in_marine_diatom_18O_ove20161221-10051-1pjrvt5-libre.pdf?1482337054=\u0026response-content-disposition=attachment%3B+filename%3DIsotope_offsets_in_marine_diatom_18O_ov.pdf\u0026Expires=1740575272\u0026Signature=aWyrJffXxa9-AGe~vZduQfoKIzvRpsizRirYDWNw47mbHQRP6IUQjkS3ZqVbPVGk7U~9jmf3MfwqHCFf1tISi4l5hHisJcxhTRVc2IEOJ1OnE2h0HbsNhz6xxwnfDDWZa--QmEjOK4E0gJbegMjqdWx5Qsr-X2xRBRavAabFVyRfXI6YvzPOpGWiMUctmngMZTmR0~XR3dUVdJ1PEJyHXlnvhwlezXd4n~CqeXvWx1QkEGiMNs7DGn9aZMWrm8yQCMe-4ctmWo7B-KELhDfyL2VdHiep5zEcS87GRssYO6Qe-QjwjppJ4OsvhmCcfNmmaH2a0aMLEwOGr5vBS~~pWA__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, 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="1381117"><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/1381117/Diatom_oxygen_isotopes_evidence_of_a_species_effect_in_the_sediment_record"><img alt="Research paper thumbnail of Diatom oxygen isotopes: evidence of a species effect in the sediment record" class="work-thumbnail" src="https://attachments.academia-assets.com/8652027/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/1381117/Diatom_oxygen_isotopes_evidence_of_a_species_effect_in_the_sediment_record">Diatom oxygen isotopes: evidence of a species effect in the sediment record</a></div><div class="wp-workCard_item"><span>Geochemistry, …</span><span>, Jan 1, 2007</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">1] Diatom oxygen isotope measurements are commonly made on bulk mixed species assemblages due to ...</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">1] Diatom oxygen isotope measurements are commonly made on bulk mixed species assemblages due to the difficulty in purifying and separating individual taxa. As such, it is essential to understand processes in diatoms which may lead to isotope offsets both between and within individual species. Existing studies have suggested that mechanisms which may lead to isotopes offset in diatoms, such as vital effects, are either nonexistent or negligible. Here, we present a suite of diatom oxygen isotope data from the onset of major Northern Hemisphere Glaciation at ODP site 882 in the northwest Pacific Ocean which display large offsets (mean = 1.23%, max = 3.51%, error = 0.84%) between two different size fractions (75-150 mm and >150 mm) that are dominated by only two species: Coscinodiscus marginatus and Coscinodiscus radiatus. These offsets are most likely size related, although additional interspecies and intraspecies effects may also be important in determining the exact magnitude of the offsets. Consequently, considerable care is needed when interpreting bulk diatom oxygen isotope data in relation to paleoenvironmental change, especially when the amount of stratigraphical change within the isotopes is small.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="ffae0ffd91460fa5c3e1ba1faa584bc3" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":8652027,"asset_id":1381117,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/8652027/download_file?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="1381117"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381117"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381117; 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "ffae0ffd91460fa5c3e1ba1faa584bc3" } } $('.js-work-strip[data-work-id=1381117]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":1381117,"title":"Diatom oxygen isotopes: evidence of a species effect in the sediment record","internal_url":"https://www.academia.edu/1381117/Diatom_oxygen_isotopes_evidence_of_a_species_effect_in_the_sediment_record","owner_id":1202643,"coauthors_can_edit":true,"owner":{"id":1202643,"first_name":"George","middle_initials":null,"last_name":"Swann","page_name":"GeorgeSwann","domain_name":"nottingham","created_at":"2012-02-12T16:22:44.172-08:00","display_name":"George Swann","url":"https://nottingham.academia.edu/GeorgeSwann"},"attachments":[{"id":8652027,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/8652027/thumbnails/1.jpg","file_name":"2006gc001535.pdf","download_url":"https://www.academia.edu/attachments/8652027/download_file","bulk_download_file_name":"Diatom_oxygen_isotopes_evidence_of_a_spe.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/8652027/2006gc001535-libre.pdf?1390856255=\u0026response-content-disposition=attachment%3B+filename%3DDiatom_oxygen_isotopes_evidence_of_a_spe.pdf\u0026Expires=1740575272\u0026Signature=dFdvUC1zHbmJ5nAwKMqA68-Cj1BK4dUB6f-Xy~fWuKph7CY1MwtwGxn7KlW42OqxBsrxL~Zi3fy~tfNwvM-5g2prBptUYxWlD4jRHZk5FN0doRc50y3bKM-Pcu1Wa~eZXxiOw7Nt8Pn~u8mMpavTeGHETd4qsQ67xK2YaQjBRsueZbmiUtcDFSF42CLViJC6HDrQj6ZGl1MN9Uv51QESttGRuxLMd~vWiBdg2EQnyHssgLP~rBuKdufRvbuJ~K9wToDcatIzSDQWsbrAAGOMxtaOzqEFPvflrbDark-yRRIAbc9rPcB7PPEYaW8cMEBBYbr3qpthomMubxk0MHG3QA__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, 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="1381116"><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/1381116/A_review_of_diatom_delta_18O_in_palaeoceanography"><img alt="Research paper thumbnail of A review of diatom [delta] 18O in palaeoceanography" 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/1381116/A_review_of_diatom_delta_18O_in_palaeoceanography">A review of diatom [delta] 18O in palaeoceanography</a></div><div class="wp-workCard_item"><span>Quaternary Science Reviews</span><span>, Jan 1, 2009</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">... with other proxies it has proven possible to reconstruct, amongst other variables, changes in...</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">... with other proxies it has proven possible to reconstruct, amongst other variables, changes in deep water formation, surface and bottom water temperature, salinity, global ice volume and water column stratification (eg, [Mulitza et al., 1997], [Barrera and Johnson, 1999], [Niebler ...</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="1381116"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381116"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381116; 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=1381116]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":1381116,"title":"A review of diatom [delta] 18O in palaeoceanography","internal_url":"https://www.academia.edu/1381116/A_review_of_diatom_delta_18O_in_palaeoceanography","owner_id":1202643,"coauthors_can_edit":true,"owner":{"id":1202643,"first_name":"George","middle_initials":null,"last_name":"Swann","page_name":"GeorgeSwann","domain_name":"nottingham","created_at":"2012-02-12T16:22:44.172-08:00","display_name":"George Swann","url":"https://nottingham.academia.edu/GeorgeSwann"},"attachments":[]}, 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="1381115"><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/1381115/Diatom_%CE%B418O_evidence_for_the_development_of_the_modern_halocline_system_in_the_subarctic_northwest_Pacific_at_the_onset_of_major_Northern_Hemisphere_glaciation"><img alt="Research paper thumbnail of Diatom δ18O evidence for the development of the modern halocline system in the subarctic northwest Pacific at the onset of major Northern Hemisphere glaciation" class="work-thumbnail" src="https://attachments.academia-assets.com/51001891/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/1381115/Diatom_%CE%B418O_evidence_for_the_development_of_the_modern_halocline_system_in_the_subarctic_northwest_Pacific_at_the_onset_of_major_Northern_Hemisphere_glaciation">Diatom δ18O evidence for the development of the modern halocline system in the subarctic northwest Pacific at the onset of major Northern Hemisphere glaciation</a></div><div class="wp-workCard_item"><span>Paleoceanography</span><span>, Jan 1, 2006</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">1] Establishing a time frame for the development of the modern halocline and stratified water col...</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">1] Establishing a time frame for the development of the modern halocline and stratified water column in the subarctic North Pacific has significant paleoclimatic implications. Here we present a d 18 O (diatom) record consisting of only two species that represents autumn/winter conditions in the region across the onset of major Northern Hemisphere glaciation boundary. At circa 2.73 Ma a decrease in d 18 O (diatom) of 4.6% occurs, whereas previously published d 18 O (foram) results show a 2.6% increase. The d 18 O (diatom) and U 37 k sea surface reconstructions indicate both a significant freshening of 2-4 practical salinity units and an increase in surface temperatures in the summer to early winter period from circa 2.73 Ma onward. In contrast, the concomitant increase in d 18 O (foram) is likely to be reflective of conditions beneath the mesothermal structure and/or spring conditions when warmer sea surface temperatures are not present in the region. These results are consistent with the development of the modern halocline system at 2.73 Ma with year-round stratification of the water column and a strengthened seasonal thermocline during the summer to early winter period, resulting in one of the largest summer to winter temperature gradients in the open ocean. The onset of stratification would also have led to a warm pool of surface water from circa 2.73 Ma, which may have provided a potential source of extra moisture needed to supply the growing North American ice sheets at this time. Citation: Swann, G. E. A., M. A. Maslin, M. J. Leng, H. J. Sloane, and G. H. Haug (2006), Diatom d 18 O evidence for the development of the modern halocline system in the subarctic northwest Pacific at the onset of major Northern Hemisphere glaciation, Paleoceanography, 21, PA1009,</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="681c2601205bae9555635a127ed1536a" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":51001891,"asset_id":1381115,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/51001891/download_file?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="1381115"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381115"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381115; 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "681c2601205bae9555635a127ed1536a" } } $('.js-work-strip[data-work-id=1381115]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":1381115,"title":"Diatom δ18O evidence for the development of the modern halocline system in the subarctic northwest Pacific at the onset of major Northern Hemisphere glaciation","internal_url":"https://www.academia.edu/1381115/Diatom_%CE%B418O_evidence_for_the_development_of_the_modern_halocline_system_in_the_subarctic_northwest_Pacific_at_the_onset_of_major_Northern_Hemisphere_glaciation","owner_id":1202643,"coauthors_can_edit":true,"owner":{"id":1202643,"first_name":"George","middle_initials":null,"last_name":"Swann","page_name":"GeorgeSwann","domain_name":"nottingham","created_at":"2012-02-12T16:22:44.172-08:00","display_name":"George Swann","url":"https://nottingham.academia.edu/GeorgeSwann"},"attachments":[{"id":51001891,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/51001891/thumbnails/1.jpg","file_name":"Diatom_18O_evidence_for_the_development_20161221-10051-1tozk9g.pdf","download_url":"https://www.academia.edu/attachments/51001891/download_file","bulk_download_file_name":"Diatom_18O_evidence_for_the_development.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/51001891/Diatom_18O_evidence_for_the_development_20161221-10051-1tozk9g-libre.pdf?1482337068=\u0026response-content-disposition=attachment%3B+filename%3DDiatom_18O_evidence_for_the_development.pdf\u0026Expires=1740575272\u0026Signature=Zhyp5ERbTbsg9OErrnWs35vPROpC1Ioe834e5DJW-Pq3zTijUPrmHK8wilUPQ5CfbGd1De61GRbAswIHWq81FB1BVGoNQ4dByHdmU~1mXycC1BeepZc~bWl76blKnjzfuFaZnQYA~lJCF7~e9OQdimBPhAbMTN77lLrgXho0PI8aWuGddsq9HhqALw6-dVMLi23pN480O6rGnF8ztC0rjUkr~yOJCYDuQCe~KopHAy15FaOfyL42xtsq3aSc5HK0iGrXKY0qs4zjgpKhss5w7QbMWgI0hBtxwOBpp8CW4e2QDJSeh~UPqP2f6vYPokybwOtWKZpW21eNgx80AFH51g__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, 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="1381114"><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/1381114/Climatic_change_in_Central_Asia_during_MIS_3_2_a_case_study_using_biological_responses_from_Lake_Baikal"><img alt="Research paper thumbnail of Climatic change in Central Asia during MIS 3/2: a case study using biological responses from Lake Baikal" class="work-thumbnail" src="https://attachments.academia-assets.com/8652026/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/1381114/Climatic_change_in_Central_Asia_during_MIS_3_2_a_case_study_using_biological_responses_from_Lake_Baikal">Climatic change in Central Asia during MIS 3/2: a case study using biological responses from Lake Baikal</a></div><div class="wp-workCard_item"><span>Global and Planetary …</span><span>, Jan 1, 2005</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">A Marine Isotope Stage (MIS) 3/early MIS 2 section from a structural high along the east coast of...</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">A Marine Isotope Stage (MIS) 3/early MIS 2 section from a structural high along the east coast of the North Basin of Lake Baikal was analysed for diatoms, C/N ratios, and organic carbon isotope ratios. Diatoms were present throughout MIS 3 and early MIS 2, with high concentrations of the planktonic taxa Cyclotella sp. c.f. gracilis between 54 and 51.5 kyr BP indicating relatively warm, interstadial, conditions. Following a %TOC inferred climatic cooling between 43.2 and 39.1 kyr BP, evidence of a more muted y 13 C (organic) and %TOC inferred climatic warming from c. 39.1-34.7 kyr BP coincides with a period of very high diatom concentrations, indicating high aquatic productivity, at the Buguldeika Saddle in the South Basin of Lake Baikal. No evidence exists for a dKuzminT catchment erosional event in the North Basin during MIS 3. This, however, may reflect the location of the coring site away from major riverine inputs. Abrupt climatic cooling at the culmination of both warm phases in the North Basin are associated, on the basis of the palaeomagnetic age-model and correlations to existing sites in Lake Baikal, with the initiation of Heinrich events 5 (c. 50 kyr BP) and 4 (c. 35 kyr BP), respectively, in the North Atlantic. The amount of organic material declines across the MIS 3/MIS 2 transition while constant C/N ratios suggest organic material to be predominantly derived from phytoplankton. An increase in y 13 C (organic) at the MIS 3/MIS 2 transition may therefore indicate changes in aquatic productivity, pCO 2 or the inorganic carbon pool. D</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="2d713f346a19a9a1ac699c3dba736ae5" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":8652026,"asset_id":1381114,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/8652026/download_file?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="1381114"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="1381114"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 1381114; 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "2d713f346a19a9a1ac699c3dba736ae5" } } $('.js-work-strip[data-work-id=1381114]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":1381114,"title":"Climatic change in Central Asia during MIS 3/2: a case study using biological responses from Lake Baikal","internal_url":"https://www.academia.edu/1381114/Climatic_change_in_Central_Asia_during_MIS_3_2_a_case_study_using_biological_responses_from_Lake_Baikal","owner_id":1202643,"coauthors_can_edit":true,"owner":{"id":1202643,"first_name":"George","middle_initials":null,"last_name":"Swann","page_name":"GeorgeSwann","domain_name":"nottingham","created_at":"2012-02-12T16:22:44.172-08:00","display_name":"George Swann","url":"https://nottingham.academia.edu/GeorgeSwann"},"attachments":[{"id":8652026,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/8652026/thumbnails/1.jpg","file_name":"swann.pdf","download_url":"https://www.academia.edu/attachments/8652026/download_file","bulk_download_file_name":"Climatic_change_in_Central_Asia_during_M.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/8652026/swann-libre.pdf?1390856244=\u0026response-content-disposition=attachment%3B+filename%3DClimatic_change_in_Central_Asia_during_M.pdf\u0026Expires=1740575272\u0026Signature=JK59~4k8Jamo8znOJL8q~6CIn1hYMR1QlE3nZ1pzuGOJBUW5bvl4DCVJ0vokFsr9jeVSuqSrSYA6UfL9bowZ5YwMfReuvKtKsEVbzN-wViqbGuU1zheIcs-7Uq1XZiRHPOJSvDoDE-l1U3PbBuZo2VZWqh7bIn24XNaSyEjwoxODmF0GVwnXigVKsEySpMJsW2IZgDGs-eSQm1Hzq5YmsDheoyU-p9rTpguXJyKrtfr1YhJW8UDTQTNZ8HsxbJTrXcesf~r9W2KTdUgDyrQLyCJ4SV-pO~lAdYjXGnLVd2bS98zloLXrsfzYnDWBoQuDRYJ3TacX31GfMBwfZjRttw__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); 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