CINXE.COM

<!DOCTYPE html> <html > <head> <meta charset="utf-8"> <meta rel="search" type="application/opensearchdescription+xml" href="/open_search.xml" title="Academia.edu"> <meta content="width=device-width, initial-scale=1" name="viewport"> <meta name="google-site-verification" content="bKJMBZA7E43xhDOopFZkssMMkBRjvYERV-NaN4R6mrs"> <meta name="csrf-param" content="authenticity_token" /> <meta name="csrf-token" content="B1dhg+/kqPay2JSZocX4XSy8CI7/O6tVcslAQwL2VN544X3DiaJ+v+DIMugeA5wxiMlkQL+bJJCgR5hvrCyJDw==" /> <meta name="citation_title" content="Neoarchean synkinematic metamorphic peak in the Isua supracrustal belt (West Greenland)" /> <meta name="citation_publication_date" content="2023/01/01" /> <meta name="citation_journal_title" content="Geology" /> <meta name="citation_author" content="Benjamin Eskesen" /> <meta name="citation_author" content="Kathrin Fassmer" /> <meta name="citation_author" content="Carsten Münker" /> <meta name="citation_author" content="Thomas Ulrich" /> <meta name="citation_author" content="Kristoffer Szilas" /> <meta name="citation_author" content="Simon Wagner" /> <meta name="citation_author" content="J. Elis Hoffmann" /> <meta name="citation_author" content="Thorsten J. Nagel" /> <meta name="citation_issn" content="0091-7613" /> <meta name="twitter:card" content="summary" /> <meta name="twitter:url" content="https://www.academia.edu/105670152/Neoarchean_synkinematic_metamorphic_peak_in_the_Isua_supracrustal_belt_West_Greenland" /> <meta name="twitter:title" content="Neoarchean synkinematic metamorphic peak in the Isua supracrustal belt (West Greenland" /> <meta name="twitter:description" content="We present petrological data and seven Lu-Hf garnet-amphibole-whole rock ages obtained from a single garnet-hornblende-mica schist sample from the Isua supracrustal belt (West Greenland). Garnets grew during prograde metamorphism toward regional" /> <meta name="twitter:image" content="https://0.academia-photos.com/2043493/673810/74394316/s200_kristoffer.szilas.jpg" /> <meta property="fb:app_id" content="2369844204" /> <meta property="og:type" content="article" /> <meta property="og:url" content="https://www.academia.edu/105670152/Neoarchean_synkinematic_metamorphic_peak_in_the_Isua_supracrustal_belt_West_Greenland" /> <meta property="og:title" content="Neoarchean synkinematic metamorphic peak in the Isua supracrustal belt (West Greenland" /> <meta property="og:image" content="http://a.academia-assets.com/images/open-graph-icons/fb-paper.gif" /> <meta property="og:description" content="We present petrological data and seven Lu-Hf garnet-amphibole-whole rock ages obtained from a single garnet-hornblende-mica schist sample from the Isua supracrustal belt (West Greenland). Garnets grew during prograde metamorphism toward regional" /> <meta property="article:author" content="https://ku-dk.academia.edu/KristofferSzilas" /> <meta name="description" content="We present petrological data and seven Lu-Hf garnet-amphibole-whole rock ages obtained from a single garnet-hornblende-mica schist sample from the Isua supracrustal belt (West Greenland). Garnets grew during prograde metamorphism toward regional" /> <title>(PDF) Neoarchean synkinematic metamorphic peak in the Isua supracrustal belt (West Greenland | Kristoffer Szilas - Academia.edu</title> <link rel="canonical" href="https://www.academia.edu/105670152/Neoarchean_synkinematic_metamorphic_peak_in_the_Isua_supracrustal_belt_West_Greenland" /> <script async src="https://www.googletagmanager.com/gtag/js?id=G-5VKX33P2DS"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-5VKX33P2DS', { cookie_domain: 'academia.edu', send_page_view: false, }); gtag('event', 'page_view', { 'controller': "single_work", 'action': "show", 'controller_action': 'single_work#show', 'logged_in': 'false', 'edge': 'unknown', // Send nil if there is no A/B test bucket, in case some records get logged // with missing data - that way we can distinguish between the two cases. // ab_test_bucket should be of the form <ab_test_name>:<bucket> 'ab_test_bucket': null, }) </script> <script> var $controller_name = 'single_work'; var $action_name = "show"; var $rails_env = 'production'; var $app_rev = '92477ec68c09d28ae4730a4143c926f074776319'; var $domain = 'academia.edu'; var $app_host = "academia.edu"; var $asset_host = "academia-assets.com"; var $start_time = new Date().getTime(); var $recaptcha_key = "6LdxlRMTAAAAADnu_zyLhLg0YF9uACwz78shpjJB"; var $recaptcha_invisible_key = "6Lf3KHUUAAAAACggoMpmGJdQDtiyrjVlvGJ6BbAj"; var $disableClientRecordHit = false; </script> <script> window.require = { config: function() { return function() {} } } </script> <script> window.Aedu = window.Aedu || {}; window.Aedu.hit_data = null; window.Aedu.serverRenderTime = new Date(1732825596000); window.Aedu.timeDifference = new Date().getTime() - 1732825596000; </script> <script type="application/ld+json">{"@context":"https://schema.org","@type":"ScholarlyArticle","abstract":"We present petrological data and seven Lu-Hf garnet-amphibole-whole rock ages obtained from a single garnet-hornblende-mica schist sample from the Isua supracrustal belt (West Greenland). Garnets grew during prograde metamorphism toward regional amphibolite-facies peak conditions, and a mylonitic foliation formed during and after garnet growth. Garnet crystals show typical prograde zoning with no visible traces of a relict garnet generation. They do show various degrees of retrogression. While some crystals are perfectly euhedral with only minor chemical alteration along cracks, others are elongated in the foliation and either grew in this shape or were deformed. Six garnet splits were separated from crushed single crystals and one from a crushed bulk sample. Individual three-point garnet-hornblende-whole rock ages scatter between 2.603 ± 0.018 Ga and 2.432 ± 0.059 Ga for single garnets. The garnet split from the bulk sample defines an age of 2.463 ± 0.031 Ga, the data point farthest from the regression line for all data points (2.551 ± 0.074 Ga, mean square of weighted deviates = 25). We interpret these data to indicate partial retrogression of a Neoarchean garnet population not significantly older than the oldest obtained three-point age. Well-preserved garnet zoning, regional peak temperatures well below the closing temperature of the Lu-Hf system, and the small scatter of Lu-Hf ages preclude an interpretation of the observed metamorphism and deformation as being Eoarchean in age.","author":[{"@context":"https://schema.org","@type":"Person","name":"Kristoffer Szilas"}],"contributor":[],"dateCreated":"2023-08-16","dateModified":null,"datePublished":"2023-01-01","headline":"Neoarchean synkinematic metamorphic peak in the Isua supracrustal belt (West Greenland","inLanguage":"en","keywords":["Geology"],"locationCreated":null,"publication":"Geology","publisher":{"@context":"https://schema.org","@type":"Organization","name":null},"image":null,"thumbnailUrl":null,"url":"https://www.academia.edu/105670152/Neoarchean_synkinematic_metamorphic_peak_in_the_Isua_supracrustal_belt_West_Greenland","sourceOrganization":[{"@context":"https://schema.org","@type":"EducationalOrganization","name":"ku-dk"}]}</script><link rel="stylesheet" media="all" href="//a.academia-assets.com/assets/single_work_page/loswp-102fa537001ba4d8dcd921ad9bd56c474abc201906ea4843e7e7efe9dfbf561d.css" /><link rel="stylesheet" media="all" href="//a.academia-assets.com/assets/design_system/body-8d679e925718b5e8e4b18e9a4fab37f7eaa99e43386459376559080ac8f2856a.css" /><link rel="stylesheet" media="all" href="//a.academia-assets.com/assets/design_system/button-3cea6e0ad4715ed965c49bfb15dedfc632787b32ff6d8c3a474182b231146ab7.css" /><link rel="stylesheet" media="all" href="//a.academia-assets.com/assets/design_system/text_button-73590134e40cdb49f9abdc8e796cc00dc362693f3f0f6137d6cf9bb78c318ce7.css" /><link crossorigin="" href="https://fonts.gstatic.com/" rel="preconnect" /><link href="https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,100..1000;1,9..40,100..1000&family=Gupter:wght@400;500;700&family=IBM+Plex+Mono:wght@300;400&family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20,400,0,0&display=swap" rel="stylesheet" /><link rel="stylesheet" media="all" href="//a.academia-assets.com/assets/design_system/common-10fa40af19d25203774df2d4a03b9b5771b45109c2304968038e88a81d1215c5.css" /> </head> <body> <div id='react-modal'></div> <div class="js-upgrade-ie-banner" style="display: none; text-align: center; padding: 8px 0; background-color: #ebe480;"><p style="color: #000; font-size: 12px; margin: 0 0 4px;">Academia.edu no longer supports Internet Explorer.</p><p style="color: #000; font-size: 12px; margin: 0;">To browse Academia.edu and the wider internet faster and more securely, please take a few seconds to <a href="https://www.academia.edu/upgrade-browser">upgrade your browser</a>.</p></div><script>// Show this banner for all versions of IE if (!!window.MSInputMethodContext || /(MSIE)/.test(navigator.userAgent)) { document.querySelector('.js-upgrade-ie-banner').style.display = 'block'; }</script> <div class="bootstrap login"><div class="modal fade login-modal" id="login-modal"><div class="login-modal-dialog modal-dialog"><div class="modal-content"><div class="modal-header"><button class="close close" data-dismiss="modal" type="button"><span aria-hidden="true">×</span><span class="sr-only">Close</span></button><h4 class="modal-title text-center"><strong>Log In</strong></h4></div><div class="modal-body"><div class="row"><div class="col-xs-10 col-xs-offset-1"><button class="btn btn-fb btn-lg btn-block btn-v-center-content" id="login-facebook-oauth-button"><svg style="float: left; width: 19px; line-height: 1em; margin-right: .3em;" aria-hidden="true" focusable="false" data-prefix="fab" data-icon="facebook-square" class="svg-inline--fa fa-facebook-square fa-w-14" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><path fill="currentColor" d="M400 32H48A48 48 0 0 0 0 80v352a48 48 0 0 0 48 48h137.25V327.69h-63V256h63v-54.64c0-62.15 37-96.48 93.67-96.48 27.14 0 55.52 4.84 55.52 4.84v61h-31.27c-30.81 0-40.42 19.12-40.42 38.73V256h68.78l-11 71.69h-57.78V480H400a48 48 0 0 0 48-48V80a48 48 0 0 0-48-48z"></path></svg><small><strong>Log in</strong> with <strong>Facebook</strong></small></button><br /><button class="btn btn-google btn-lg btn-block btn-v-center-content" id="login-google-oauth-button"><svg style="float: left; width: 22px; line-height: 1em; margin-right: .3em;" aria-hidden="true" focusable="false" data-prefix="fab" data-icon="google-plus" class="svg-inline--fa fa-google-plus fa-w-16" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="currentColor" d="M256,8C119.1,8,8,119.1,8,256S119.1,504,256,504,504,392.9,504,256,392.9,8,256,8ZM185.3,380a124,124,0,0,1,0-248c31.3,0,60.1,11,83,32.3l-33.6,32.6c-13.2-12.9-31.3-19.1-49.4-19.1-42.9,0-77.2,35.5-77.2,78.1S142.3,334,185.3,334c32.6,0,64.9-19.1,70.1-53.3H185.3V238.1H302.2a109.2,109.2,0,0,1,1.9,20.7c0,70.8-47.5,121.2-118.8,121.2ZM415.5,273.8v35.5H380V273.8H344.5V238.3H380V202.8h35.5v35.5h35.2v35.5Z"></path></svg><small><strong>Log in</strong> with <strong>Google</strong></small></button><br /><style type="text/css">.sign-in-with-apple-button { width: 100%; height: 52px; border-radius: 3px; border: 1px solid black; cursor: pointer; }</style><script src="https://appleid.cdn-apple.com/appleauth/static/jsapi/appleid/1/en_US/appleid.auth.js" type="text/javascript"></script><div class="sign-in-with-apple-button" data-border="false" data-color="white" id="appleid-signin"><span   ="Sign Up with Apple" class="u-fs11"></span></div><script>AppleID.auth.init({ clientId: 'edu.academia.applesignon', scope: 'name email', redirectURI: 'https://www.academia.edu/sessions', state: "7e88dee55c09b12306c6466e4f541b35eac187cf1ff4c812e18fc8429ec0ba30", });</script><script>// Hacky way of checking if on fast loswp if (window.loswp == null) { (function() { const Google = window?.Aedu?.Auth?.OauthButton?.Login?.Google; const Facebook = window?.Aedu?.Auth?.OauthButton?.Login?.Facebook; if (Google) { new Google({ el: '#login-google-oauth-button', rememberMeCheckboxId: 'remember_me', track: null }); } if (Facebook) { new Facebook({ el: '#login-facebook-oauth-button', rememberMeCheckboxId: 'remember_me', track: null }); } })(); }</script></div></div></div><div class="modal-body"><div class="row"><div class="col-xs-10 col-xs-offset-1"><div class="hr-heading login-hr-heading"><span class="hr-heading-text">or</span></div></div></div></div><div class="modal-body"><div class="row"><div class="col-xs-10 col-xs-offset-1"><form class="js-login-form" action="https://www.academia.edu/sessions" accept-charset="UTF-8" method="post"><input name="utf8" type="hidden" value="✓" autocomplete="off" /><input type="hidden" name="authenticity_token" value="Q6leC1tUkYnrZfWLb7slNXTGrrWL3dcB7QtlF+9/Xf08H0JLPRJHwLl1U/rQfUFZ0LPCe8t9WMQ/hb07QaWALA==" autocomplete="off" /><div class="form-group"><label class="control-label" for="login-modal-email-input" style="font-size: 14px;">Email</label><input class="form-control" id="login-modal-email-input" name="login" type="email" /></div><div class="form-group"><label class="control-label" for="login-modal-password-input" style="font-size: 14px;">Password</label><input class="form-control" id="login-modal-password-input" name="password" type="password" /></div><input type="hidden" name="post_login_redirect_url" id="post_login_redirect_url" value="https://www.academia.edu/105670152/Neoarchean_synkinematic_metamorphic_peak_in_the_Isua_supracrustal_belt_West_Greenland" autocomplete="off" /><div class="checkbox"><label><input type="checkbox" name="remember_me" id="remember_me" value="1" checked="checked" /><small style="font-size: 12px; margin-top: 2px; display: inline-block;">Remember me on this computer</small></label></div><br><input type="submit" name="commit" value="Log In" class="btn btn-primary btn-block btn-lg js-login-submit" data-disable-with="Log In" /></br></form><script>typeof window?.Aedu?.recaptchaManagedForm === 'function' && window.Aedu.recaptchaManagedForm( document.querySelector('.js-login-form'), document.querySelector('.js-login-submit') );</script><small style="font-size: 12px;"><br />or <a data-target="#login-modal-reset-password-container" data-toggle="collapse" href="javascript:void(0)">reset password</a></small><div class="collapse" id="login-modal-reset-password-container"><br /><div class="well margin-0x"><form class="js-password-reset-form" action="https://www.academia.edu/reset_password" accept-charset="UTF-8" method="post"><input name="utf8" type="hidden" value="✓" autocomplete="off" /><input type="hidden" name="authenticity_token" value="pum3aXD+6KY1Yo6TIBFlMkdlDnsWoqOj4NaxvR18883ZX6spFrg+72dyKOKf1wFe4xBitVYCLGYyWGmRs6YuHA==" autocomplete="off" /><p>Enter the email address you signed up with and we'll email you a reset link.</p><div class="form-group"><input class="form-control" name="email" type="email" /></div><input class="btn btn-primary btn-block g-recaptcha js-password-reset-submit" data-sitekey="6Lf3KHUUAAAAACggoMpmGJdQDtiyrjVlvGJ6BbAj" type="submit" value="Email me a link" /></form></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/collapse-45805421cf446ca5adf7aaa1935b08a3a8d1d9a6cc5d91a62a2a3a00b20b3e6a.js"], function() { // from javascript_helper.rb $("#login-modal-reset-password-container").on("shown.bs.collapse", function() { $(this).find("input[type=email]").focus(); }); }); </script> </div></div></div><div class="modal-footer"><div class="text-center"><small style="font-size: 12px;">Need an account? <a rel="nofollow" href="https://www.academia.edu/signup">Click here to sign up</a></small></div></div></div></div></div></div><script>// If we are on subdomain or non-bootstrapped page, redirect to login page instead of showing modal (function(){ if (typeof $ === 'undefined') return; var host = window.location.hostname; if ((host === $domain || host === "www."+$domain) && (typeof $().modal === 'function')) { $("#nav_log_in").click(function(e) { // Don't follow the link and open the modal e.preventDefault(); $("#login-modal").on('shown.bs.modal', function() { $(this).find("#login-modal-email-input").focus() }).modal('show'); }); } })()</script> <div id="fb-root"></div><script>window.fbAsyncInit = function() { FB.init({ appId: "2369844204", version: "v8.0", status: true, cookie: true, xfbml: true }); // Additional initialization code. if (window.InitFacebook) { // facebook.ts already loaded, set it up. window.InitFacebook(); } else { // Set a flag for facebook.ts to find when it loads. window.academiaAuthReadyFacebook = true; } };</script> <div id="google-root"></div><script>window.loadGoogle = function() { if (window.InitGoogle) { // google.ts already loaded, set it up. window.InitGoogle("331998490334-rsn3chp12mbkiqhl6e7lu2q0mlbu0f1b"); } else { // Set a flag for google.ts to use when it loads. window.GoogleClientID = "331998490334-rsn3chp12mbkiqhl6e7lu2q0mlbu0f1b"; } };</script> <div class="header--container" id="main-header-container"><div class="header--inner-container header--inner-container-ds2"><div class="header-ds2--left-wrapper"><div class="header-ds2--left-wrapper-inner"><a data-main-header-link-target="logo_home" href="https://www.academia.edu/"><img class="hide-on-desktop-redesign" style="height: 24px; width: 24px;" alt="Academia.edu" src="//a.academia-assets.com/images/academia-logo-redesign-2015-A.svg" width="24" height="24" /><img width="145.2" height="18" class="hide-on-mobile-redesign" style="height: 24px;" alt="Academia.edu" src="//a.academia-assets.com/images/academia-logo-redesign-2015.svg" /></a><div class="header--search-container header--search-container-ds2"><form class="js-SiteSearch-form select2-no-default-pills" action="https://www.academia.edu/search" accept-charset="UTF-8" method="get"><input name="utf8" type="hidden" value="✓" autocomplete="off" /><svg style="width: 14px; height: 14px;" aria-hidden="true" focusable="false" data-prefix="fas" data-icon="search" class="header--search-icon svg-inline--fa fa-search fa-w-16" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="currentColor" d="M505 442.7L405.3 343c-4.5-4.5-10.6-7-17-7H372c27.6-35.3 44-79.7 44-128C416 93.1 322.9 0 208 0S0 93.1 0 208s93.1 208 208 208c48.3 0 92.7-16.4 128-44v16.3c0 6.4 2.5 12.5 7 17l99.7 99.7c9.4 9.4 24.6 9.4 33.9 0l28.3-28.3c9.4-9.4 9.4-24.6.1-34zM208 336c-70.7 0-128-57.2-128-128 0-70.7 57.2-128 128-128 70.7 0 128 57.2 128 128 0 70.7-57.2 128-128 128z"></path></svg><input class="header--search-input header--search-input-ds2 js-SiteSearch-form-input" data-main-header-click-target="search_input" name="q" placeholder="Search" type="text" /></form></div></div></div><nav class="header--nav-buttons header--nav-buttons-ds2 js-main-nav"><a class="ds2-5-button ds2-5-button--secondary js-header-login-url header-button-ds2 header-login-ds2 hide-on-mobile-redesign" href="https://www.academia.edu/login" rel="nofollow">Log In</a><a class="ds2-5-button ds2-5-button--secondary header-button-ds2 hide-on-mobile-redesign" href="https://www.academia.edu/signup" rel="nofollow">Sign Up</a><button class="header--hamburger-button header--hamburger-button-ds2 hide-on-desktop-redesign js-header-hamburger-button"><div class="icon-bar"></div><div class="icon-bar" style="margin-top: 4px;"></div><div class="icon-bar" style="margin-top: 4px;"></div></button></nav></div><ul class="header--dropdown-container js-header-dropdown"><li class="header--dropdown-row"><a class="header--dropdown-link" href="https://www.academia.edu/login" rel="nofollow">Log In</a></li><li class="header--dropdown-row"><a class="header--dropdown-link" href="https://www.academia.edu/signup" rel="nofollow">Sign Up</a></li><li class="header--dropdown-row js-header-dropdown-expand-button"><button class="header--dropdown-button">more<svg aria-hidden="true" focusable="false" data-prefix="fas" data-icon="caret-down" class="header--dropdown-button-icon svg-inline--fa fa-caret-down fa-w-10" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path fill="currentColor" d="M31.3 192h257.3c17.8 0 26.7 21.5 14.1 34.1L174.1 354.8c-7.8 7.8-20.5 7.8-28.3 0L17.2 226.1C4.6 213.5 13.5 192 31.3 192z"></path></svg></button></li><li><ul class="header--expanded-dropdown-container"><li class="header--dropdown-row"><a class="header--dropdown-link" href="https://www.academia.edu/about">About</a></li><li class="header--dropdown-row"><a class="header--dropdown-link" href="https://www.academia.edu/press">Press</a></li><li class="header--dropdown-row"><a class="header--dropdown-link" href="https://medium.com/@academia">Blog</a></li><li class="header--dropdown-row"><a class="header--dropdown-link" href="https://www.academia.edu/documents">Papers</a></li><li class="header--dropdown-row"><a class="header--dropdown-link" href="https://www.academia.edu/terms">Terms</a></li><li class="header--dropdown-row"><a class="header--dropdown-link" href="https://www.academia.edu/privacy">Privacy</a></li><li class="header--dropdown-row"><a class="header--dropdown-link" href="https://www.academia.edu/copyright">Copyright</a></li><li class="header--dropdown-row"><a class="header--dropdown-link" href="https://www.academia.edu/hiring"><svg aria-hidden="true" focusable="false" data-prefix="fas" data-icon="briefcase" class="header--dropdown-row-icon svg-inline--fa fa-briefcase fa-w-16" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="currentColor" d="M320 336c0 8.84-7.16 16-16 16h-96c-8.84 0-16-7.16-16-16v-48H0v144c0 25.6 22.4 48 48 48h416c25.6 0 48-22.4 48-48V288H320v48zm144-208h-80V80c0-25.6-22.4-48-48-48H176c-25.6 0-48 22.4-48 48v48H48c-25.6 0-48 22.4-48 48v80h512v-80c0-25.6-22.4-48-48-48zm-144 0H192V96h128v32z"></path></svg>We're Hiring!</a></li><li class="header--dropdown-row"><a class="header--dropdown-link" href="https://support.academia.edu/"><svg aria-hidden="true" focusable="false" data-prefix="fas" data-icon="question-circle" class="header--dropdown-row-icon svg-inline--fa fa-question-circle fa-w-16" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="currentColor" d="M504 256c0 136.997-111.043 248-248 248S8 392.997 8 256C8 119.083 119.043 8 256 8s248 111.083 248 248zM262.655 90c-54.497 0-89.255 22.957-116.549 63.758-3.536 5.286-2.353 12.415 2.715 16.258l34.699 26.31c5.205 3.947 12.621 3.008 16.665-2.122 17.864-22.658 30.113-35.797 57.303-35.797 20.429 0 45.698 13.148 45.698 32.958 0 14.976-12.363 22.667-32.534 33.976C247.128 238.528 216 254.941 216 296v4c0 6.627 5.373 12 12 12h56c6.627 0 12-5.373 12-12v-1.333c0-28.462 83.186-29.647 83.186-106.667 0-58.002-60.165-102-116.531-102zM256 338c-25.365 0-46 20.635-46 46 0 25.364 20.635 46 46 46s46-20.636 46-46c0-25.365-20.635-46-46-46z"></path></svg>Help Center</a></li><li class="header--dropdown-row js-header-dropdown-collapse-button"><button class="header--dropdown-button">less<svg aria-hidden="true" focusable="false" data-prefix="fas" data-icon="caret-up" class="header--dropdown-button-icon svg-inline--fa fa-caret-up fa-w-10" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><path fill="currentColor" d="M288.662 352H31.338c-17.818 0-26.741-21.543-14.142-34.142l128.662-128.662c7.81-7.81 20.474-7.81 28.284 0l128.662 128.662c12.6 12.599 3.676 34.142-14.142 34.142z"></path></svg></button></li></ul></li></ul></div> <script src="//a.academia-assets.com/assets/webpack_bundles/fast_loswp-bundle-5a6217ebba1e3e193cb1032ca4e3bea5eb426dd3928dd536d7bf14b642b1cd3a.js" defer="defer"></script><script>window.loswp = {}; window.loswp.author = 2043493; window.loswp.bulkDownloadFilterCounts = {}; window.loswp.hasDownloadableAttachment = true; window.loswp.hasViewableAttachments = true; // TODO: just use routes for this window.loswp.loginUrl = "https://www.academia.edu/login?post_login_redirect_url=https%3A%2F%2Fwww.academia.edu%2F105670152%2FNeoarchean_synkinematic_metamorphic_peak_in_the_Isua_supracrustal_belt_West_Greenland%3Fauto%3Ddownload"; window.loswp.translateUrl = "https://www.academia.edu/login?post_login_redirect_url=https%3A%2F%2Fwww.academia.edu%2F105670152%2FNeoarchean_synkinematic_metamorphic_peak_in_the_Isua_supracrustal_belt_West_Greenland%3Fshow_translation%3Dtrue"; window.loswp.previewableAttachments = [{"id":105071023,"identifier":"Attachment_105071023","shouldShowBulkDownload":false}]; window.loswp.shouldDetectTimezone = true; window.loswp.shouldShowBulkDownload = true; window.loswp.showSignupCaptcha = false window.loswp.willEdgeCache = false; window.loswp.work = {"work":{"id":105670152,"created_at":"2023-08-16T22:04:25.602-07:00","from_world_paper_id":null,"updated_at":"2023-08-17T00:14:41.931-07:00","_data":{"doi":"10.1130/G51564.1","abstract":"We present petrological data and seven Lu-Hf garnet-amphibole-whole rock ages obtained from a single garnet-hornblende-mica schist sample from the Isua supracrustal belt (West Greenland). Garnets grew during prograde metamorphism toward regional amphibolite-facies peak conditions, and a mylonitic foliation formed during and after garnet growth. Garnet crystals show typical prograde zoning with no visible traces of a relict garnet generation. They do show various degrees of retrogression. While some crystals are perfectly euhedral with only minor chemical alteration along cracks, others are elongated in the foliation and either grew in this shape or were deformed. Six garnet splits were separated from crushed single crystals and one from a crushed bulk sample. Individual three-point garnet-hornblende-whole rock ages scatter between 2.603 ± 0.018 Ga and 2.432 ± 0.059 Ga for single garnets. The garnet split from the bulk sample defines an age of 2.463 ± 0.031 Ga, the data point farthest from the regression line for all data points (2.551 ± 0.074 Ga, mean square of weighted deviates = 25). We interpret these data to indicate partial retrogression of a Neoarchean garnet population not significantly older than the oldest obtained three-point age. Well-preserved garnet zoning, regional peak temperatures well below the closing temperature of the Lu-Hf system, and the small scatter of Lu-Hf ages preclude an interpretation of the observed metamorphism and deformation as being Eoarchean in age.","publication_date":"2023,,","publication_name":"Geology"},"document_type":"paper","pre_hit_view_count_baseline":null,"quality":"high","language":"en","title":"Neoarchean synkinematic metamorphic peak in the Isua supracrustal belt (West Greenland","broadcastable":true,"draft":false,"has_indexable_attachment":true,"indexable":true}}["work"]; window.loswp.workCoauthors = [2043493]; window.loswp.locale = "en"; window.loswp.countryCode = "SG"; window.loswp.cwvAbTestBucket = ""; window.loswp.designVariant = "ds_vanilla"; window.loswp.fullPageMobileSutdModalVariant = "control"; window.loswp.useOptimizedScribd4genScript = false; window.loswp.appleClientId = 'edu.academia.applesignon';</script><script defer="" src="https://accounts.google.com/gsi/client"></script><div class="ds-loswp-container"><div class="ds-work-card--grid-container"><div class="ds-work-card--container js-loswp-work-card"><div class="ds-work-card--cover"><div class="ds-work-cover--wrapper"><div class="ds-work-cover--container"><button class="ds-work-cover--clickable js-swp-download-button" data-signup-modal="{"location":"swp-splash-paper-cover","attachmentId":105071023,"attachmentType":"pdf"}"><img alt="First page of “Neoarchean synkinematic metamorphic peak in the Isua supracrustal belt (West Greenland”" class="ds-work-cover--cover-thumbnail" src="https://0.academia-photos.com/attachment_thumbnails/105071023/mini_magick20230817-1-hjnlqt.png?1692248698" /><img alt="PDF Icon" class="ds-work-cover--file-icon" src="//a.academia-assets.com/assets/single_work_splash/adobe.icon-574afd46eb6b03a77a153a647fb47e30546f9215c0ee6a25df597a779717f9ef.svg" /><div class="ds-work-cover--hover-container"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">download</span><p>Download Free PDF</p></div><div class="ds-work-cover--ribbon-container">Download Free PDF</div><div class="ds-work-cover--ribbon-triangle"></div></button></div></div></div><div class="ds-work-card--work-information"><h1 class="ds-work-card--work-title">Neoarchean synkinematic metamorphic peak in the Isua supracrustal belt (West Greenland</h1><div class="ds-work-card--work-authors ds-work-card--detail"><a class="ds-work-card--author js-wsj-grid-card-author ds2-5-body-md ds2-5-body-link" data-author-id="2043493" href="https://ku-dk.academia.edu/KristofferSzilas"><img alt="Profile image of Kristoffer Szilas" class="ds-work-card--author-avatar" src="https://0.academia-photos.com/2043493/673810/74394316/s65_kristoffer.szilas.jpg" />Kristoffer Szilas</a></div><div class="ds-work-card--detail"><p class="ds-work-card--detail ds2-5-body-sm">2023, Geology</p><a class="js-loswp-work-card-doi-link ds2-5-body-sm ds2-5-body-link" href="https://doi.org/10.1130/G51564.1" rel="nofollow">https://doi.org/10.1130/G51564.1</a><div class="ds-work-card--work-metadata"><div class="ds-work-card--work-metadata__stat"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">visibility</span><p class="ds2-5-body-sm" id="work-metadata-view-count">…</p></div><div class="ds-work-card--work-metadata__stat"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">description</span><p class="ds2-5-body-sm">5 pages</p></div><div class="ds-work-card--work-metadata__stat"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">link</span><p class="ds2-5-body-sm">1 file</p></div></div><script>(async () => { const workId = 105670152; const worksViewsPath = "/v0/works/views?subdomain_param=api&work_ids%5B%5D=105670152"; const getWorkViews = async (workId) => { const response = await fetch(worksViewsPath); if (!response.ok) { throw new Error('Failed to load work views'); } const data = await response.json(); return data.views[workId]; }; // Get the view count for the work - we send this immediately rather than waiting for // the DOM to load, so it can be available as soon as possible (but without holding up // the backend or other resource requests, because it's a bit expensive and not critical). const viewCount = await getWorkViews(workId); const updateViewCount = (viewCount) => { const viewCountNumber = Number(viewCount); if (!viewCountNumber) { throw new Error('Failed to parse view count'); } const commaizedViewCount = viewCountNumber.toLocaleString(); const viewCountBody = document.getElementById('work-metadata-view-count'); if (viewCountBody) { viewCountBody.textContent = `${commaizedViewCount} views`; } else { throw new Error('Failed to find work views element'); } }; // If the DOM is still loading, wait for it to be ready before updating the view count. if (document.readyState === "loading") { document.addEventListener('DOMContentLoaded', () => { updateViewCount(viewCount); }); // Otherwise, just update it immediately. } else { updateViewCount(viewCount); } })();</script></div><p class="ds-work-card--work-abstract ds-work-card--detail ds2-5-body-md">We present petrological data and seven Lu-Hf garnet-amphibole-whole rock ages obtained from a single garnet-hornblende-mica schist sample from the Isua supracrustal belt (West Greenland). Garnets grew during prograde metamorphism toward regional amphibolite-facies peak conditions, and a mylonitic foliation formed during and after garnet growth. Garnet crystals show typical prograde zoning with no visible traces of a relict garnet generation. They do show various degrees of retrogression. While some crystals are perfectly euhedral with only minor chemical alteration along cracks, others are elongated in the foliation and either grew in this shape or were deformed. Six garnet splits were separated from crushed single crystals and one from a crushed bulk sample. Individual three-point garnet-hornblende-whole rock ages scatter between 2.603 ± 0.018 Ga and 2.432 ± 0.059 Ga for single garnets. The garnet split from the bulk sample defines an age of 2.463 ± 0.031 Ga, the data point farthest from the regression line for all data points (2.551 ± 0.074 Ga, mean square of weighted deviates = 25). We interpret these data to indicate partial retrogression of a Neoarchean garnet population not significantly older than the oldest obtained three-point age. Well-preserved garnet zoning, regional peak temperatures well below the closing temperature of the Lu-Hf system, and the small scatter of Lu-Hf ages preclude an interpretation of the observed metamorphism and deformation as being Eoarchean in age.</p><div class="ds-work-card--button-container"><button class="ds2-5-button js-swp-download-button" data-signup-modal="{"location":"continue-reading-button--work-card","attachmentId":105071023,"attachmentType":"pdf","workUrl":"https://www.academia.edu/105670152/Neoarchean_synkinematic_metamorphic_peak_in_the_Isua_supracrustal_belt_West_Greenland"}">See full PDF</button><button class="ds2-5-button ds2-5-button--secondary js-swp-download-button" data-signup-modal="{"location":"download-pdf-button--work-card","attachmentId":105071023,"attachmentType":"pdf","workUrl":"https://www.academia.edu/105670152/Neoarchean_synkinematic_metamorphic_peak_in_the_Isua_supracrustal_belt_West_Greenland"}"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">download</span>Download PDF</button></div></div></div></div><div data-auto_select="false" data-client_id="331998490334-rsn3chp12mbkiqhl6e7lu2q0mlbu0f1b" data-doc_id="105071023" data-landing_url="https://www.academia.edu/105670152/Neoarchean_synkinematic_metamorphic_peak_in_the_Isua_supracrustal_belt_West_Greenland" data-login_uri="https://www.academia.edu/registrations/google_one_tap" data-moment_callback="onGoogleOneTapEvent" id="g_id_onload"></div><div class="ds-top-related-works--grid-container"><div class="ds-related-content--container ds-top-related-works--container"><h2 class="ds-related-content--heading">Related papers</h2><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="0" data-entity-id="26679810" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/26679810/Lu_Hf_geochronology_of_garnet_II_numerical_simulations_of_the_development_of_garnet_whole_rock_Lu_Hf_isochrons_and_a_new_method_for_constraining_the_thermal_history_of_metamorphic_rocks">Lu-Hf geochronology of garnet II: numerical simulations of the development of garnet-whole-rock Lu-Hf isochrons and a new method for constraining the thermal history of metamorphic rocks</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="50623909" href="https://independent.academia.edu/JibamitraGanguly">Jibamitra Ganguly</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Contributions to Mineralogy and Petrology, 2015</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Lu-Hf geochronology of garnet II: numerical simulations of the development of garnet-whole-rock Lu-Hf isochrons and a new method for constraining the thermal history of metamorphic rocks","attachmentId":46960349,"attachmentType":"pdf","work_url":"https://www.academia.edu/26679810/Lu_Hf_geochronology_of_garnet_II_numerical_simulations_of_the_development_of_garnet_whole_rock_Lu_Hf_isochrons_and_a_new_method_for_constraining_the_thermal_history_of_metamorphic_rocks","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/26679810/Lu_Hf_geochronology_of_garnet_II_numerical_simulations_of_the_development_of_garnet_whole_rock_Lu_Hf_isochrons_and_a_new_method_for_constraining_the_thermal_history_of_metamorphic_rocks"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="1" data-entity-id="106115377" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/106115377/Linking_thermodynamic_modelling_Lu_Hf_geochronology_and_trace_elements_in_garnet_new_P_T_t_paths_from_the_Sevier_hinterland">Linking thermodynamic modelling, Lu–Hf geochronology and trace elements in garnet: new P–T–t paths from the Sevier hinterland</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="213184373" href="https://independent.academia.edu/ACruzUribe">Alicia Cruz-Uribe</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Journal of Metamorphic Geology, 2015</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Linking thermodynamic modelling, Lu–Hf geochronology and trace elements in garnet: new P–T–t paths from the Sevier hinterland","attachmentId":105397549,"attachmentType":"pdf","work_url":"https://www.academia.edu/106115377/Linking_thermodynamic_modelling_Lu_Hf_geochronology_and_trace_elements_in_garnet_new_P_T_t_paths_from_the_Sevier_hinterland","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/106115377/Linking_thermodynamic_modelling_Lu_Hf_geochronology_and_trace_elements_in_garnet_new_P_T_t_paths_from_the_Sevier_hinterland"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="2" data-entity-id="26679714" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/26679714/176Lu_176Hf_geochronology_of_garnet_II_numerical_simulations_of_the_development_of_garnet_whole_rock_176Lu_176Hf_isochrons_and_a_new_method_for_constraining_the_thermal_history_of_metamorphic_rocks">176Lu–176Hf geochronology of garnet II: numerical simulations of the development of garnet–whole-rock 176Lu–176Hf isochrons and a new method for constraining the thermal history of metamorphic rocks</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="50623909" href="https://independent.academia.edu/JibamitraGanguly">Jibamitra Ganguly</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Contributions to Mineralogy and Petrology, 2015</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"176Lu–176Hf geochronology of garnet II: numerical simulations of the development of garnet–whole-rock 176Lu–176Hf isochrons and a new method for constraining the thermal history of metamorphic rocks","attachmentId":46960335,"attachmentType":"pdf","work_url":"https://www.academia.edu/26679714/176Lu_176Hf_geochronology_of_garnet_II_numerical_simulations_of_the_development_of_garnet_whole_rock_176Lu_176Hf_isochrons_and_a_new_method_for_constraining_the_thermal_history_of_metamorphic_rocks","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/26679714/176Lu_176Hf_geochronology_of_garnet_II_numerical_simulations_of_the_development_of_garnet_whole_rock_176Lu_176Hf_isochrons_and_a_new_method_for_constraining_the_thermal_history_of_metamorphic_rocks"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="3" data-entity-id="23829880" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/23829880/Lu_Hf_and_Ar_Ar_chronometry_supports_extreme_rate_of_subduction_zone_metamorphism_deduced_from_geospeedometry">Lu–Hf and Ar–Ar chronometry supports extreme rate of subduction zone metamorphism deduced from geospeedometry</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="46071056" href="https://independent.academia.edu/APerchuk">A. Perchuk</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Tectonophysics, 2001</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Lu–Hf and Ar–Ar chronometry supports extreme rate of subduction zone metamorphism deduced from geospeedometry","attachmentId":44235248,"attachmentType":"pdf","work_url":"https://www.academia.edu/23829880/Lu_Hf_and_Ar_Ar_chronometry_supports_extreme_rate_of_subduction_zone_metamorphism_deduced_from_geospeedometry","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/23829880/Lu_Hf_and_Ar_Ar_chronometry_supports_extreme_rate_of_subduction_zone_metamorphism_deduced_from_geospeedometry"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="4" data-entity-id="112055292" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/112055292/Timing_of_Variscan_syn_collisional_metamorphism_constrained_by_Lu_Hf_and_Sm_Nd_garnet_petrochronology_The_Tatra_Mountains_Western_Carpathians">Timing of Variscan syn-collisional metamorphism constrained by Lu-Hf and Sm-Nd garnet petrochronology (The Tatra Mountains, Western Carpathians</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="6119406" href="https://sav-sk.academia.edu/MilanKoh%C3%BAt">Milan Kohút</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Geologica Carpathica, 2023</p><p class="ds-related-work--abstract ds2-5-body-sm">The Variscan high-pressure (HP) eclogite and medium pressure (MP) metapelitic gneisses from the Tatra Mts. crystalline basement (Western Carpathians, Slovakia) were dated by means of the Lu-Hf and Sm-Nd methods. The Lu-Hf and Sm-Nd garnet dating of mafic eclogite and metapelitic gneisses provides a new set of precise ages on Variscan syn-collisional metamorphism in the Western Carpathians. The published P-T conditions document peak eclogite facies metamorphism at 15-17 kbar and 650-695 °C, whereas garnet-sillimanite gneisses reached their climax at 5-6 kbar and 650-700 °C. Lu-Hf bulk garnet dating gave the precise ages of 354.5 ± 1.2 Ma for eclogite, while the ages of 346.7 ± 1.0 Ma and 345.9 ± 1.0 Ma were determined for metapelites. The Sm-Nd dating of the same garnet fractions from metapelites gave the ages 344.9 ± 2.6 and 345.4 ± 9.3 Ma. Both the Sm-Nd and Lu-Hf ages are indistinguishable within their uncertainties, and so, when considering the major and trace element zonation in garnet, we interpret them as dating the time of prograde garnet crystallization. The data therefore indicates high-pressure, eclogite facies metamorphism in the Tournaisian, and medium-pressure metamorphism in Visean times. We interpret the eclogite facies metamorphism as a record of initial Variscan continental collision in the Early Carboniferous. Early metamorphism in the eclogite facies is a deeper expression of the subducting slab, and thus, garnet started to grow in eclogite ca. 10 Myr earlier than that in the sillimanite-bearing gneiss in a shallower level.</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Timing of Variscan syn-collisional metamorphism constrained by Lu-Hf and Sm-Nd garnet petrochronology (The Tatra Mountains, Western Carpathians","attachmentId":109404728,"attachmentType":"pdf","work_url":"https://www.academia.edu/112055292/Timing_of_Variscan_syn_collisional_metamorphism_constrained_by_Lu_Hf_and_Sm_Nd_garnet_petrochronology_The_Tatra_Mountains_Western_Carpathians","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/112055292/Timing_of_Variscan_syn_collisional_metamorphism_constrained_by_Lu_Hf_and_Sm_Nd_garnet_petrochronology_The_Tatra_Mountains_Western_Carpathians"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="5" data-entity-id="15775622" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/15775622/The_Lu_Hf_dating_of_garnets_and_the_ages_of_the_Alpine_high_pressure_metamorphism">The LuHf dating of garnets and the ages of the Alpine high-pressure metamorphism</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="34967718" href="https://independent.academia.edu/B%C3%A9atriceLuais">Béatrice Luais</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Nature, 1997</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"The LuHf dating of garnets and the ages of the Alpine high-pressure metamorphism","attachmentId":42896050,"attachmentType":"pdf","work_url":"https://www.academia.edu/15775622/The_Lu_Hf_dating_of_garnets_and_the_ages_of_the_Alpine_high_pressure_metamorphism","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/15775622/The_Lu_Hf_dating_of_garnets_and_the_ages_of_the_Alpine_high_pressure_metamorphism"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="6" data-entity-id="1762537" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/1762537/The_Chromite_Garnet_Peridotite_Assemblages_and_their_Role_in_the_Evolution_of_the_Mantle_Lithosphere">The Chromite-Garnet Peridotite Assemblages and their Role in the Evolution of the Mantle Lithosphere</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="1991951" href="https://gswa.academia.edu/TimIvanic">Tim Ivanic</a></div><p class="ds-related-work--metadata ds2-5-body-xs">2007</p><p class="ds-related-work--abstract ds2-5-body-sm">Newlands and Bobbejaan kimberlites, South Africa, contain suites of highly chromian, garnet-rich peridotites amongst their xenolith population and an investigation of these xenoliths has been targeted because there is an overlap of mineral compositions with the garnet-chromite-olivine paragenesis found as inclusions in diamonds. A high proportion of garnets and chromites in these rocks plot in the diamond facies fields on Cr2O3-CaO and Cr2O3-MgO wt. % plots respectively. However, it has also been found that many Cr-rich assemblages are clinopyroxene-bearing (lherzolitic) as well as harzburgitic (i.e. forming a range of chromite-garnet peridotite assemblages). Many samples have garnets with inclusions of serpentine ± chromite (+ clinopyroxene in lherzolitic samples) whose arrangement are sometimes indicative of exsolution or annealed exsolution textures. Initial bulk REE patterns were calculated for the pre-exsolution, pre-metasomatism, high-Cr garnets. The patterns found are humped for harzburgitic samples and relatively flat for lherzolitic ones. These appear to be closely linked to the concentration of Ca in garnet indicative of a single-stage formation process for the humped profiles. The profiles were later modified by exsolution of pyroxenes (with a clear link between Ca content of garnet and the garnet/clinopyroxene partition coefficients) and, in a few cases, by metasomatism causing a zonation of REE. Most of the garnets have strongly developed zonation patterns which are a result of diffusion towards the matrix (external zonation) followed by zonation towards inclusions (internal zonation). Cr-Al and Mg-Ca inter-diffuse in both types of zonation; Ti may also be strongly zoned, whereas Fe is not distinctly zoned in any sample. External zonation may be divided into ‘P-T re-equilibration’ and ‘metasomatic’ types, where the former type conforms to down-P-T garnet-spinel transition reaction simulations and the latter does not. All internal zonations conform to down P-T reaction simulations. All the zonation profiles conform well to diffusion controlled reaction models. External P-T re-equilibration is modelled to have occurred on an order of magnitude greater timescale than internal zonation (~5 Ma compared to ~0.5 Ma using DMg = 10-20m2/s). Metasomatic zonation occurs over the longest diffusion distances and is modelled to have timescales up to 20 Ma. Based upon the geometries of chemical heterogeneity in the minerals analysed, a sequence of events has been proposed for the evolution of the Newlands and Bobbejaan samples: (1) Earliest known mineralogy. There is little evidence for the events prior to and during this stage. However, the modal mineralogy is postulated to have been more garnet and olivine-rich than seen in the samples and the crystals more chemically homogeneous. The P and T in samples are modelled to have the highest Ps and Ts of all stages (potentially > 65kb and > 1350°C). (2) Exsolution. This stage represents the initiation of an event which significantly lowered P and T where spinel and pyroxene exsolved from garnet. (3a) External zonation - P-T re-equilibration and metasomatism. These events are contiguous with stage 2 and P-T estimates for this stage indicate further lowering of P and T. This is accompanied by modification of a few samples by the infiltration of metasomatic fluid. (3b) Internal zonation – P-T re-equilibration. This stage represents the final lowering of P and T, yielding final P-T estimates on clinopyroxene inclusion-garnet boundaries of 38-50 kb and 900-1150°C. These P-T estimates place samples plot on a relatively cool continental steady state geotherm. (4) Kimberlite eruption. The initial formation of the garnet-rich rock types with their (calculated) highly chromian composition and particular initial REE compositions appears to be related to a major depletion event with subsequent burial. Differential interaction with a CO2-bearing fluid would generate the range of harzburgitic and lherzolitic compositions found. However it is acknowledged that this is difficult to determine and constrain because of the lack of preservation of evidence prior to Stage 2.The down-P-T event has a similar timescale and associated uplift rate to be related to continent-continent collision according to the timescales for diffusion. The contemporaneous metasomatism leads to postulation that the event may have been related to the continental accretion of the eastern and western parts of the Kaapvaal craton in the late Archaean. In terms of the relation to diamond, it was found that samples with high-Cr harzburgitic garnets tended to yield P-T estimates that were most substantially into the diamond stability field based upon the Cr-Al partitioning between garnet and spinel and also modelling the samples using the computer programme known as ‘Perplex’. Clinopyroxene-bearing samples (i.e. those with a bulk rock composition higher in Ca) tended to indicate higher temperatures of equilibration. Cr-spinels from the harzburgitic paragenesis have higher Mg and lower Ti than the lherzolitic Cr-spinels, but overlapping Cr compositions at high Cr and may be differentiated on Cr-Mg and Cr-Ti compositional plots.</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"The Chromite-Garnet Peridotite Assemblages and their Role in the Evolution of the Mantle Lithosphere","attachmentId":22281754,"attachmentType":"pdf","work_url":"https://www.academia.edu/1762537/The_Chromite_Garnet_Peridotite_Assemblages_and_their_Role_in_the_Evolution_of_the_Mantle_Lithosphere","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/1762537/The_Chromite_Garnet_Peridotite_Assemblages_and_their_Role_in_the_Evolution_of_the_Mantle_Lithosphere"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="7" data-entity-id="25997021" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/25997021/Late_metasomatic_addition_of_garnet_to_the_SCLM_Os_isotope_evidence">Late metasomatic addition of garnet to the SCLM: Os-isotope evidence</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="49820268" href="https://nsu-ru.academia.edu/VladimirMalkovets">Vladimir Malkovets</a></div><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Late metasomatic addition of garnet to the SCLM: Os-isotope evidence","attachmentId":46347783,"attachmentType":"pdf","work_url":"https://www.academia.edu/25997021/Late_metasomatic_addition_of_garnet_to_the_SCLM_Os_isotope_evidence","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/25997021/Late_metasomatic_addition_of_garnet_to_the_SCLM_Os_isotope_evidence"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="8" data-entity-id="55841706" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/55841706/Franciscan_subduction_off_to_a_slow_start_evidence_from_high_precision_Lu_Hf_garnet_ages_on_high_grade_blocks">Franciscan subduction off to a slow start: evidence from high-precision Lu–Hf garnet ages on high grade-blocks</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="56980485" href="https://independent.academia.edu/RobertAnczkiewicz">Robert Anczkiewicz</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Earth and Planetary Science Letters, 2004</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Franciscan subduction off to a slow start: evidence from high-precision Lu–Hf garnet ages on high grade-blocks","attachmentId":71520552,"attachmentType":"pdf","work_url":"https://www.academia.edu/55841706/Franciscan_subduction_off_to_a_slow_start_evidence_from_high_precision_Lu_Hf_garnet_ages_on_high_grade_blocks","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/55841706/Franciscan_subduction_off_to_a_slow_start_evidence_from_high_precision_Lu_Hf_garnet_ages_on_high_grade_blocks"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="9" data-entity-id="750503" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/750503/Application_of_Lu_Hf_garnet_dating_to_unravel_the_relationships_between_deformation_metamorphism_and_plutonism_An_example_from_the_Prince_Rupert_area_British_Columbia">Application of Lu–Hf garnet dating to unravel the relationships between deformation, metamorphism and plutonism: An example from the Prince Rupert area, British Columbia</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="61170" href="https://cornell.academia.edu/DavidWolf">David Wolf</a></div><p class="ds-related-work--abstract ds2-5-body-sm">The tectonic history of the Prince Rupert area is marked by profound crustal thickening from thrusting that produced inverted metamorphic field gradients and transpression in crustal-scale shear zones. Syn-tectonic garnet in the Prince Rupert area has Lu–Hf ages of 102.6 ± 3.7 Ma and 108.3 ± 4.1 Ma (2σ). Porphyroblast–matrix relationships in these samples, and samples from the same outcrops, indicate syn-tectonic garnet growth. These relationships imply that the garnet ages directly date the development of the metamorphic foliations. A third sample of migmatitic garnet amphibolite from the contact aureole of the 94–90 Ma Ecstall pluton had complex isotope systematics interpreted to indicate a garnet growth episode not, vert, similar 105 Ma, similar to the ages obtained from the other samples and a growth or equilibration event at not, vert, similar 94 Ma during pluton emplacement. The data show that the older Lu–Hf garnet ages date prograde metamorphism during foliation development and modification during pluton emplacement. The Ecstall pluton was emplaced 10 to 15 m.y. after regional metamorphism and thrust stacking in the Prince Rupert area. In order to place our samples in a regional tectonic context we compare our results to patterns of regional deformation, metamorphism and plutonism throughout the North American Cordillera in the time period between 110 and 85 Ma. Contractional and transpressional deformation occurred throughout much of the North American Cordillera at this time, from southeastern Alaska to the Baja Peninsula in Mexico. Left-lateral transpression dominated the Canadian Cordillera, whereas, right-lateral transpression affected areas south of the Idaho–Salmon River suture zone, including the Sierra Nevada batholith. This reversal in kinematics in the northern and southern cordillera within coeval magmatic belts appears to be a first-order feature of the geology of the North American Cordillera during the Cretaceous.</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Application of Lu–Hf garnet dating to unravel the relationships between deformation, metamorphism and plutonism: An example from the Prince Rupert area, British Columbia","attachmentId":4320702,"attachmentType":"pdf","work_url":"https://www.academia.edu/750503/Application_of_Lu_Hf_garnet_dating_to_unravel_the_relationships_between_deformation_metamorphism_and_plutonism_An_example_from_the_Prince_Rupert_area_British_Columbia","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/750503/Application_of_Lu_Hf_garnet_dating_to_unravel_the_relationships_between_deformation_metamorphism_and_plutonism_An_example_from_the_Prince_Rupert_area_British_Columbia"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div></div></div><div class="ds-sticky-ctas--wrapper js-loswp-sticky-ctas hidden"><div class="ds-sticky-ctas--grid-container"><div class="ds-sticky-ctas--container"><button class="ds2-5-button js-swp-download-button" data-signup-modal="{"location":"continue-reading-button--sticky-ctas","attachmentId":105071023,"attachmentType":"pdf","workUrl":null}">See full PDF</button><button class="ds2-5-button ds2-5-button--secondary js-swp-download-button" data-signup-modal="{"location":"download-pdf-button--sticky-ctas","attachmentId":105071023,"attachmentType":"pdf","workUrl":null}"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">download</span>Download PDF</button></div></div></div><div class="ds-below-fold--grid-container"><div class="ds-work--container js-loswp-embedded-document"><div class="attachment_preview" data-attachment="Attachment_105071023" style="display: none"><div class="js-scribd-document-container"><div class="scribd--document-loading js-scribd-document-loader" style="display: block;"><img alt="Loading..." src="//a.academia-assets.com/images/loaders/paper-load.gif" /><p>Loading Preview</p></div></div><div style="text-align: center;"><div class="scribd--no-preview-alert js-preview-unavailable"><p>Sorry, preview is currently unavailable. You can download the paper by clicking the button above.</p></div></div></div></div><div class="ds-sidebar--container js-work-sidebar"><div class="ds-related-content--container"><h2 class="ds-related-content--heading">Related papers</h2><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="0" data-entity-id="30875991" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/30875991/Trace_element_and_Sm_Nd_age_zoning_in_garnets_from_peridotites_of_the_Caledonian_and_Variscan_Mountains_and_tectonic_implications">Trace element and Sm-Nd ‘age’ zoning in garnets from peridotites of the Caledonian and Variscan Mountains and tectonic implications</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="58769484" href="https://independent.academia.edu/HannesBrueckner">Hannes Brueckner</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Journal of Metamorphic Geology, 2004</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Trace element and Sm-Nd ‘age’ zoning in garnets from peridotites of the Caledonian and Variscan Mountains and tectonic implications","attachmentId":51302249,"attachmentType":"pdf","work_url":"https://www.academia.edu/30875991/Trace_element_and_Sm_Nd_age_zoning_in_garnets_from_peridotites_of_the_Caledonian_and_Variscan_Mountains_and_tectonic_implications","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/30875991/Trace_element_and_Sm_Nd_age_zoning_in_garnets_from_peridotites_of_the_Caledonian_and_Variscan_Mountains_and_tectonic_implications"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="1" data-entity-id="91376411" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/91376411/Coupled_Lu_Hf_and_Sm_Nd_geochronology_on_a_single_eclogitic_garnet_from_the_Huwan_shear_zone_China">Coupled Lu–Hf and Sm–Nd geochronology on a single eclogitic garnet from the Huwan shear zone, China</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="226587597" href="https://independent.academia.edu/BesimDragovic">Besim Dragovic</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Chemical Geology, 2018</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Coupled Lu–Hf and Sm–Nd geochronology on a single eclogitic garnet from the Huwan shear zone, China","attachmentId":94681444,"attachmentType":"pdf","work_url":"https://www.academia.edu/91376411/Coupled_Lu_Hf_and_Sm_Nd_geochronology_on_a_single_eclogitic_garnet_from_the_Huwan_shear_zone_China","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/91376411/Coupled_Lu_Hf_and_Sm_Nd_geochronology_on_a_single_eclogitic_garnet_from_the_Huwan_shear_zone_China"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="2" data-entity-id="75114442" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/75114442/Strontium_isotope_zoning_in_garnet_implications_for_metamorphic_matrix_equilibration_geochronology_and_phase_equilibrium_modelling">Strontium isotope zoning in garnet: implications for metamorphic matrix equilibration, geochronology and phase equilibrium modelling</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="48161963" href="https://independent.academia.edu/NorthrupC">C. Northrup</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Journal of Metamorphic Geology, 2013</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Strontium isotope zoning in garnet: implications for metamorphic matrix equilibration, geochronology and phase equilibrium modelling","attachmentId":83014439,"attachmentType":"pdf","work_url":"https://www.academia.edu/75114442/Strontium_isotope_zoning_in_garnet_implications_for_metamorphic_matrix_equilibration_geochronology_and_phase_equilibrium_modelling","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/75114442/Strontium_isotope_zoning_in_garnet_implications_for_metamorphic_matrix_equilibration_geochronology_and_phase_equilibrium_modelling"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="3" data-entity-id="43369198" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/43369198/Two_metamorphic_gold_mineralization_events_confirmed_by_Lu_Hf_isotope_dating_of_garnet_in_the_Late_Archean_Stor%C3%B8_Au_deposit_Nuuk_region_of_SW_Greenland">Two metamorphic gold mineralization events confirmed by Lu-Hf isotope dating of garnet in the Late Archean Storø Au deposit, Nuuk region of SW Greenland</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="2043493" href="https://ku-dk.academia.edu/KristofferSzilas">Kristoffer Szilas</a></div><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Two metamorphic gold mineralization events confirmed by Lu-Hf isotope dating of garnet in the Late Archean Storø Au deposit, Nuuk region of SW Greenland","attachmentId":63660114,"attachmentType":"pdf","work_url":"https://www.academia.edu/43369198/Two_metamorphic_gold_mineralization_events_confirmed_by_Lu_Hf_isotope_dating_of_garnet_in_the_Late_Archean_Stor%C3%B8_Au_deposit_Nuuk_region_of_SW_Greenland","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/43369198/Two_metamorphic_gold_mineralization_events_confirmed_by_Lu_Hf_isotope_dating_of_garnet_in_the_Late_Archean_Stor%C3%B8_Au_deposit_Nuuk_region_of_SW_Greenland"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="4" data-entity-id="24946554" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/24946554/Geochronological_and_geochemical_constraints_on_the_formation_and_evolution_of_the_mantle_underneath_the_Kaapvaal_craton_Lu_Hf_and_Sm_Nd_systematics_of_subcalcic_garnets_from_highly_depleted_peridotites">Geochronological and geochemical constraints on the formation and evolution of the mantle underneath the Kaapvaal craton: Lu–Hf and Sm–Nd systematics of subcalcic garnets from highly depleted peridotites</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="110348" href="https://uni-frankfurt.academia.edu/AxelGerdes">Axel Gerdes</a></div><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Geochronological and geochemical constraints on the formation and evolution of the mantle underneath the Kaapvaal craton: Lu–Hf and Sm–Nd systematics of subcalcic garnets from highly depleted peridotites","attachmentId":45277358,"attachmentType":"pdf","work_url":"https://www.academia.edu/24946554/Geochronological_and_geochemical_constraints_on_the_formation_and_evolution_of_the_mantle_underneath_the_Kaapvaal_craton_Lu_Hf_and_Sm_Nd_systematics_of_subcalcic_garnets_from_highly_depleted_peridotites","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/24946554/Geochronological_and_geochemical_constraints_on_the_formation_and_evolution_of_the_mantle_underneath_the_Kaapvaal_craton_Lu_Hf_and_Sm_Nd_systematics_of_subcalcic_garnets_from_highly_depleted_peridotites"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="5" data-entity-id="47822397" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/47822397/Sm_Nd_isotope_systematics_in_garnet_from_different_lithologies_Eastern_Alps_age_results_and_an_evaluation_of_potential_problems_for_garnet_Sm_Nd_chronometry_Chem_Geol_185_2002_255_281_">Sm–Nd isotope systematics in garnet from different lithologies (Eastern Alps): age results, and an evaluation of potential problems for garnet Sm–Nd chronometry [Chem. Geol. 185 (2002) 255–281]</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="30772957" href="https://independent.academia.edu/MartinTh%C3%B6ni">Martin Thöni</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Chemical Geology, 2003</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Sm–Nd isotope systematics in garnet from different lithologies (Eastern Alps): age results, and an evaluation of potential problems for garnet Sm–Nd chronometry [Chem. Geol. 185 (2002) 255–281]","attachmentId":66746501,"attachmentType":"pdf","work_url":"https://www.academia.edu/47822397/Sm_Nd_isotope_systematics_in_garnet_from_different_lithologies_Eastern_Alps_age_results_and_an_evaluation_of_potential_problems_for_garnet_Sm_Nd_chronometry_Chem_Geol_185_2002_255_281_","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/47822397/Sm_Nd_isotope_systematics_in_garnet_from_different_lithologies_Eastern_Alps_age_results_and_an_evaluation_of_potential_problems_for_garnet_Sm_Nd_chronometry_Chem_Geol_185_2002_255_281_"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="6" data-entity-id="57123721" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/57123721/Rapid_eclogitisation_of_the_Dabie_Sulu_UHP_terrane_Constraints_from_Lu_Hf_garnet_geochronology">Rapid eclogitisation of the Dabie–Sulu UHP terrane: Constraints from Lu–Hf garnet geochronology</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="52155010" href="https://independent.academia.edu/KlausMezger">Klaus Mezger</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Earth and Planetary Science Letters, 2008</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Rapid eclogitisation of the Dabie–Sulu UHP terrane: Constraints from Lu–Hf garnet geochronology","attachmentId":72173886,"attachmentType":"pdf","work_url":"https://www.academia.edu/57123721/Rapid_eclogitisation_of_the_Dabie_Sulu_UHP_terrane_Constraints_from_Lu_Hf_garnet_geochronology","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/57123721/Rapid_eclogitisation_of_the_Dabie_Sulu_UHP_terrane_Constraints_from_Lu_Hf_garnet_geochronology"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="7" data-entity-id="80399196" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/80399196/Sm_Nd_garnet_dating_of_polyphase_metamorphism_northern_Coast_Mountains_south_eastern_Alaska_USA">Sm-Nd garnet dating of polyphase metamorphism: northern Coast Mountains, south-eastern Alaska, USA</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="46250698" href="https://independent.academia.edu/HaroldStowell">Harold Stowell</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Journal of Metamorphic Geology, 1997</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Sm-Nd garnet dating of polyphase metamorphism: northern Coast Mountains, south-eastern Alaska, USA","attachmentId":86793892,"attachmentType":"pdf","work_url":"https://www.academia.edu/80399196/Sm_Nd_garnet_dating_of_polyphase_metamorphism_northern_Coast_Mountains_south_eastern_Alaska_USA","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/80399196/Sm_Nd_garnet_dating_of_polyphase_metamorphism_northern_Coast_Mountains_south_eastern_Alaska_USA"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="8" data-entity-id="21988019" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/21988019/Tracing_Lithosphere_Evolution_through_the_Analysis_of_Heterogeneous_G9_G10_Garnets_in_Peridotite_Xenoliths_II_REE_Chemistry">Tracing Lithosphere Evolution through the Analysis of Heterogeneous G9-G10 Garnets in Peridotite Xenoliths, II: REE Chemistry</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="42919100" href="https://independent.academia.edu/BurgessSimon">Simon Burgess</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Journal of Petrology, 2004</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Tracing Lithosphere Evolution through the Analysis of Heterogeneous G9-G10 Garnets in Peridotite Xenoliths, II: REE Chemistry","attachmentId":42695835,"attachmentType":"pdf","work_url":"https://www.academia.edu/21988019/Tracing_Lithosphere_Evolution_through_the_Analysis_of_Heterogeneous_G9_G10_Garnets_in_Peridotite_Xenoliths_II_REE_Chemistry","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/21988019/Tracing_Lithosphere_Evolution_through_the_Analysis_of_Heterogeneous_G9_G10_Garnets_in_Peridotite_Xenoliths_II_REE_Chemistry"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="9" data-entity-id="12340917" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/12340917/Characterization_of_polymetamorphism_in_the_Austroalpine_basement_east_of_the_Tauern_Window_using_garnet_isopleth_thermobarometry">Characterization of polymetamorphism in the Austroalpine basement east of the Tauern Window using garnet isopleth thermobarometry</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="34391986" href="https://independent.academia.edu/EricReusser">Eric Reusser</a><span>, </span><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="32984046" href="https://independent.academia.edu/JamesConnolly11">James Connolly</a><span>, </span><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="31018099" href="https://carleton-ca.academia.edu/FredGaidies">Fred Gaidies</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Journal of Metamorphic Geology, 2006</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Characterization of polymetamorphism in the Austroalpine basement east of the Tauern Window using garnet isopleth thermobarometry","attachmentId":37607154,"attachmentType":"pdf","work_url":"https://www.academia.edu/12340917/Characterization_of_polymetamorphism_in_the_Austroalpine_basement_east_of_the_Tauern_Window_using_garnet_isopleth_thermobarometry","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/12340917/Characterization_of_polymetamorphism_in_the_Austroalpine_basement_east_of_the_Tauern_Window_using_garnet_isopleth_thermobarometry"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="10" data-entity-id="1762538" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/1762538/Zircon_Lu_Hf_isotopes_and_granite_geochemistry_of_the_Murchison_Domain_of_the_Yilgarn_Craton_Evidence_for_reworking_of_Eoarchean_crust_during_Meso_Neoarchean_">Zircon Lu-Hf isotopes and granite geochemistry of the Murchison Domain of the Yilgarn Craton: Evidence for reworking of Eoarchean crust during Meso-Neoarchean …</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="1991951" href="https://gswa.academia.edu/TimIvanic">Tim Ivanic</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Lithos, 2012</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Zircon Lu-Hf isotopes and granite geochemistry of the Murchison Domain of the Yilgarn Craton: Evidence for reworking of Eoarchean crust during Meso-Neoarchean …","attachmentId":22255774,"attachmentType":"pdf","work_url":"https://www.academia.edu/1762538/Zircon_Lu_Hf_isotopes_and_granite_geochemistry_of_the_Murchison_Domain_of_the_Yilgarn_Craton_Evidence_for_reworking_of_Eoarchean_crust_during_Meso_Neoarchean_","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/1762538/Zircon_Lu_Hf_isotopes_and_granite_geochemistry_of_the_Murchison_Domain_of_the_Yilgarn_Craton_Evidence_for_reworking_of_Eoarchean_crust_during_Meso_Neoarchean_"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="11" data-entity-id="101515015" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/101515015/Preservation_of_Garnet_Growth_Zoning_and_the_Duration_of_Prograde_Metamorphism">Preservation of Garnet Growth Zoning and the Duration of Prograde Metamorphism</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="32223249" href="https://independent.academia.edu/MCaddick">Mark Caddick</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Journal of Petrology, 2010</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Preservation of Garnet Growth Zoning and the Duration of Prograde Metamorphism","attachmentId":102036806,"attachmentType":"pdf","work_url":"https://www.academia.edu/101515015/Preservation_of_Garnet_Growth_Zoning_and_the_Duration_of_Prograde_Metamorphism","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/101515015/Preservation_of_Garnet_Growth_Zoning_and_the_Duration_of_Prograde_Metamorphism"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="12" data-entity-id="89770506" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/89770506/Ancient_mantle_metasomatism_recorded_in_subcalcic_garnet_xenocrysts_Temporal_links_between_mantle_metasomatism_diamond_growth_and_crustal_tectonomagmatism">Ancient mantle metasomatism recorded in subcalcic garnet xenocrysts: Temporal links between mantle metasomatism, diamond growth and crustal tectonomagmatism</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="7099498" href="https://franklin.academia.edu/QiaoShu">Qiao Shu</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Earth and Planetary Science Letters, 2015</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Ancient mantle metasomatism recorded in subcalcic garnet xenocrysts: Temporal links between mantle metasomatism, diamond growth and crustal tectonomagmatism","attachmentId":93520368,"attachmentType":"pdf","work_url":"https://www.academia.edu/89770506/Ancient_mantle_metasomatism_recorded_in_subcalcic_garnet_xenocrysts_Temporal_links_between_mantle_metasomatism_diamond_growth_and_crustal_tectonomagmatism","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/89770506/Ancient_mantle_metasomatism_recorded_in_subcalcic_garnet_xenocrysts_Temporal_links_between_mantle_metasomatism_diamond_growth_and_crustal_tectonomagmatism"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="13" data-entity-id="857002" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/857002/Timing_and_rate_of_granulite_facies_metamorphism_and_cooling_from_multi_mineral_chronology_on_migmatitic_gneisses_Sierras_de_La_Huerta_and_Valle_F%C3%A9rtil_NW_Argentina_Lithos_114_1_2_229_252_2010_Gallien_F_Mogessie_A_Bjerg_E_A_Delpino_S_Castro_de_Machuca_B_Th%C3%B6ni_M_and_Kl%C3%B6tzli_U">Timing and rate of granulite facies metamorphism and cooling from multi-mineral chronology on migmatitic gneisses, Sierras de La Huerta and Valle Fértil, NW Argentina. Lithos 114(1-2): 229-252, 2010 Gallien, F., Mogessie, A., Bjerg, E.A., Delpino, S., Castro de Machuca, B., Thöni, M. & Klötzli, U</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="19797" href="https://uns.academia.edu/ErnestoBjerg">Ernesto A Bjerg</a></div><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Timing and rate of granulite facies metamorphism and cooling from multi-mineral chronology on migmatitic gneisses, Sierras de La Huerta and Valle Fértil, NW Argentina. Lithos 114(1-2): 229-252, 2010 Gallien, F., Mogessie, A., Bjerg, E.A., Delpino, S., Castro de Machuca, B., Thöni, M. \u0026 Klötzli, U","attachmentId":5169950,"attachmentType":"pdf","work_url":"https://www.academia.edu/857002/Timing_and_rate_of_granulite_facies_metamorphism_and_cooling_from_multi_mineral_chronology_on_migmatitic_gneisses_Sierras_de_La_Huerta_and_Valle_F%C3%A9rtil_NW_Argentina_Lithos_114_1_2_229_252_2010_Gallien_F_Mogessie_A_Bjerg_E_A_Delpino_S_Castro_de_Machuca_B_Th%C3%B6ni_M_and_Kl%C3%B6tzli_U","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/857002/Timing_and_rate_of_granulite_facies_metamorphism_and_cooling_from_multi_mineral_chronology_on_migmatitic_gneisses_Sierras_de_La_Huerta_and_Valle_F%C3%A9rtil_NW_Argentina_Lithos_114_1_2_229_252_2010_Gallien_F_Mogessie_A_Bjerg_E_A_Delpino_S_Castro_de_Machuca_B_Th%C3%B6ni_M_and_Kl%C3%B6tzli_U"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="14" data-entity-id="78331190" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/78331190/Diffusional_homogenization_of_light_REE_in_garnet_from_the_Day_Nui_Con_Voi_Massif_in_N_Vietnam_Implications_for_Sm_Nd_geochronology_and_timing_of_metamorphism_in_the_Red_River_shear_zone">Diffusional homogenization of light REE in garnet from the Day Nui Con Voi Massif in N-Vietnam: Implications for Sm–Nd geochronology and timing of metamorphism in the Red River shear zone</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="56980485" href="https://independent.academia.edu/RobertAnczkiewicz">Robert Anczkiewicz</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Chemical Geology, 2012</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Diffusional homogenization of light REE in garnet from the Day Nui Con Voi Massif in N-Vietnam: Implications for Sm–Nd geochronology and timing of metamorphism in the Red River shear zone","attachmentId":85415811,"attachmentType":"pdf","work_url":"https://www.academia.edu/78331190/Diffusional_homogenization_of_light_REE_in_garnet_from_the_Day_Nui_Con_Voi_Massif_in_N_Vietnam_Implications_for_Sm_Nd_geochronology_and_timing_of_metamorphism_in_the_Red_River_shear_zone","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/78331190/Diffusional_homogenization_of_light_REE_in_garnet_from_the_Day_Nui_Con_Voi_Massif_in_N_Vietnam_Implications_for_Sm_Nd_geochronology_and_timing_of_metamorphism_in_the_Red_River_shear_zone"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="15" data-entity-id="57134724" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/57134724/Closure_temperatures_of_the_Sm_Nd_system_in_metamorphic_garnets">Closure temperatures of the Sm—Nd system in metamorphic garnets</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="52155010" href="https://independent.academia.edu/KlausMezger">Klaus Mezger</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Earth and Planetary Science Letters, 1992</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Closure temperatures of the Sm—Nd system in metamorphic garnets","attachmentId":72179676,"attachmentType":"pdf","work_url":"https://www.academia.edu/57134724/Closure_temperatures_of_the_Sm_Nd_system_in_metamorphic_garnets","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/57134724/Closure_temperatures_of_the_Sm_Nd_system_in_metamorphic_garnets"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="16" data-entity-id="1014251" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/1014251/Timing_and_duration_of_garnet_granulite_metamorphism_in_magmatic_arc_crust_Fiordland_New_Zealand">Timing and duration of garnet granulite metamorphism in magmatic arc crust, Fiordland, New Zealand</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="155064" href="https://unal.academia.edu/CarlosZuluaga">Carlos Zuluaga</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Chemical Geology, 2010</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Timing and duration of garnet granulite metamorphism in magmatic arc crust, Fiordland, New Zealand","attachmentId":51133493,"attachmentType":"pdf","work_url":"https://www.academia.edu/1014251/Timing_and_duration_of_garnet_granulite_metamorphism_in_magmatic_arc_crust_Fiordland_New_Zealand","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/1014251/Timing_and_duration_of_garnet_granulite_metamorphism_in_magmatic_arc_crust_Fiordland_New_Zealand"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="17" data-entity-id="26679822" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/26679822/Lu_Hf_geochronology_of_garnet_I_experimental_determination_of_the_diffusion_kinetics_of_Lu_3_and_Hf_4_in_garnet_closure_temperatures_and_geochronological_implications">Lu– Hf geochronology of garnet I: experimental determination of the diffusion kinetics of Lu 3+ and Hf 4+ in garnet, closure temperatures and geochronological implications</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="50623909" href="https://independent.academia.edu/JibamitraGanguly">Jibamitra Ganguly</a></div><p class="ds-related-work--metadata ds2-5-body-xs">2015</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Lu– Hf geochronology of garnet I: experimental determination of the diffusion kinetics of Lu 3+ and Hf 4+ in garnet, closure temperatures and geochronological implications","attachmentId":46960354,"attachmentType":"pdf","work_url":"https://www.academia.edu/26679822/Lu_Hf_geochronology_of_garnet_I_experimental_determination_of_the_diffusion_kinetics_of_Lu_3_and_Hf_4_in_garnet_closure_temperatures_and_geochronological_implications","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/26679822/Lu_Hf_geochronology_of_garnet_I_experimental_determination_of_the_diffusion_kinetics_of_Lu_3_and_Hf_4_in_garnet_closure_temperatures_and_geochronological_implications"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="18" data-entity-id="63378948" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/63378948/Lu_Hf_and_Sm_Nd_dating_of_metamorphic_garnet_evidence_for_multiple_accretion_events_during_the_Caledonian_orogeny_in_Scotland">Lu-Hf and Sm-Nd dating of metamorphic garnet: evidence for multiple accretion events during the Caledonian orogeny in Scotland</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="36922542" href="https://independent.academia.edu/ManningChristina">Christina Manning</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Journal of the Geological Society, 2013</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Lu-Hf and Sm-Nd dating of metamorphic garnet: evidence for multiple accretion events during the Caledonian orogeny in Scotland","attachmentId":75827374,"attachmentType":"pdf","work_url":"https://www.academia.edu/63378948/Lu_Hf_and_Sm_Nd_dating_of_metamorphic_garnet_evidence_for_multiple_accretion_events_during_the_Caledonian_orogeny_in_Scotland","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/63378948/Lu_Hf_and_Sm_Nd_dating_of_metamorphic_garnet_evidence_for_multiple_accretion_events_during_the_Caledonian_orogeny_in_Scotland"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="19" data-entity-id="18895788" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/18895788/The_Lu_Hf_isotope_system_in_the_Acasta_gneiss_complex_NWT_Canada_">The Lu-Hf isotope system in the Acasta gneiss complex (NWT, Canada)</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="39017689" href="https://independent.academia.edu/WBleeker">Wouter Bleeker</a></div><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"The Lu-Hf isotope system in the Acasta gneiss complex (NWT, Canada)","attachmentId":40316006,"attachmentType":"pdf","work_url":"https://www.academia.edu/18895788/The_Lu_Hf_isotope_system_in_the_Acasta_gneiss_complex_NWT_Canada_","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/18895788/The_Lu_Hf_isotope_system_in_the_Acasta_gneiss_complex_NWT_Canada_"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="20" data-entity-id="30875996" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/30875996/The_mantle_and_crustal_evolution_of_two_garnet_peridotite_suites_from_the_Western_Gneiss_Region_Norwegian_Caledonides_An_isotopic_investigation">The mantle and crustal evolution of two garnet peridotite suites from the Western Gneiss Region, Norwegian Caledonides: An isotopic investigation</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="24907237" href="https://uu.academia.edu/HermanvanRoermund">Herman van Roermund</a><span>, </span><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="58769484" href="https://independent.academia.edu/HannesBrueckner">Hannes Brueckner</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Lithos, 2010</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"The mantle and crustal evolution of two garnet peridotite suites from the Western Gneiss Region, Norwegian Caledonides: An isotopic investigation","attachmentId":51302255,"attachmentType":"pdf","work_url":"https://www.academia.edu/30875996/The_mantle_and_crustal_evolution_of_two_garnet_peridotite_suites_from_the_Western_Gneiss_Region_Norwegian_Caledonides_An_isotopic_investigation","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/30875996/The_mantle_and_crustal_evolution_of_two_garnet_peridotite_suites_from_the_Western_Gneiss_Region_Norwegian_Caledonides_An_isotopic_investigation"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="21" data-entity-id="55841707" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/55841707/Mg_rich_staurolite_and_kyanite_inclusions_in_metabasic_garnet_amphibolite_from_the_Swedish_Eastern_Segment_evidence_for_a_Mesoproterozoic_subduction_event">Mg-rich staurolite and kyanite inclusions in metabasic garnet amphibolite from the Swedish Eastern Segment: evidence for a Mesoproterozoic subduction event</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="56980485" href="https://independent.academia.edu/RobertAnczkiewicz">Robert Anczkiewicz</a></div><p class="ds-related-work--metadata ds2-5-body-xs">European Journal of Mineralogy, 2011</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Mg-rich staurolite and kyanite inclusions in metabasic garnet amphibolite from the Swedish Eastern Segment: evidence for a Mesoproterozoic subduction event","attachmentId":71520550,"attachmentType":"pdf","work_url":"https://www.academia.edu/55841707/Mg_rich_staurolite_and_kyanite_inclusions_in_metabasic_garnet_amphibolite_from_the_Swedish_Eastern_Segment_evidence_for_a_Mesoproterozoic_subduction_event","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/55841707/Mg_rich_staurolite_and_kyanite_inclusions_in_metabasic_garnet_amphibolite_from_the_Swedish_Eastern_Segment_evidence_for_a_Mesoproterozoic_subduction_event"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="22" data-entity-id="12340909" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/12340909/Coupling_forward_modelling_of_garnet_growth_with_monazite_geochronology_an_application_to_the_Rappold_Complex_Austroalpine_crystalline_basement">Coupling forward modelling of garnet growth with monazite geochronology: an application to the Rappold Complex (Austroalpine crystalline basement</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="31018099" href="https://carleton-ca.academia.edu/FredGaidies">Fred Gaidies</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Journal of Metamorphic Geology, 2008</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Coupling forward modelling of garnet growth with monazite geochronology: an application to the Rappold Complex (Austroalpine crystalline basement","attachmentId":37607046,"attachmentType":"pdf","work_url":"https://www.academia.edu/12340909/Coupling_forward_modelling_of_garnet_growth_with_monazite_geochronology_an_application_to_the_Rappold_Complex_Austroalpine_crystalline_basement","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-related-work-grid-card-view-pdf" href="https://www.academia.edu/12340909/Coupling_forward_modelling_of_garnet_growth_with_monazite_geochronology_an_application_to_the_Rappold_Complex_Austroalpine_crystalline_basement"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div></div><div class="ds-related-content--container"><h2 class="ds-related-content--heading">Related topics</h2><div class="ds-research-interests--pills-container"><a class="js-related-research-interest ds-research-interests--pill" data-entity-id="406" href="https://www.academia.edu/Documents/in/Geology">Geology</a></div></div></div></div></div><div class="footer--content"><ul class="footer--main-links hide-on-mobile"><li><a href="https://www.academia.edu/about">About</a></li><li><a href="https://www.academia.edu/press">Press</a></li><li><a rel="nofollow" href="https://medium.com/academia">Blog</a></li><li><a href="https://www.academia.edu/documents">Papers</a></li><li><a href="https://www.academia.edu/topics">Topics</a></li><li><a href="https://www.academia.edu/hiring"><svg style="width: 13px; height: 13px; position: relative; bottom: -1px;" aria-hidden="true" focusable="false" data-prefix="fas" data-icon="briefcase" class="svg-inline--fa fa-briefcase fa-w-16" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="currentColor" d="M320 336c0 8.84-7.16 16-16 16h-96c-8.84 0-16-7.16-16-16v-48H0v144c0 25.6 22.4 48 48 48h416c25.6 0 48-22.4 48-48V288H320v48zm144-208h-80V80c0-25.6-22.4-48-48-48H176c-25.6 0-48 22.4-48 48v48H48c-25.6 0-48 22.4-48 48v80h512v-80c0-25.6-22.4-48-48-48zm-144 0H192V96h128v32z"></path></svg> <strong>We're Hiring!</strong></a></li><li><a href="https://support.academia.edu/"><svg style="width: 12px; height: 12px; position: relative; bottom: -1px;" aria-hidden="true" focusable="false" data-prefix="fas" data-icon="question-circle" class="svg-inline--fa fa-question-circle fa-w-16" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="currentColor" d="M504 256c0 136.997-111.043 248-248 248S8 392.997 8 256C8 119.083 119.043 8 256 8s248 111.083 248 248zM262.655 90c-54.497 0-89.255 22.957-116.549 63.758-3.536 5.286-2.353 12.415 2.715 16.258l34.699 26.31c5.205 3.947 12.621 3.008 16.665-2.122 17.864-22.658 30.113-35.797 57.303-35.797 20.429 0 45.698 13.148 45.698 32.958 0 14.976-12.363 22.667-32.534 33.976C247.128 238.528 216 254.941 216 296v4c0 6.627 5.373 12 12 12h56c6.627 0 12-5.373 12-12v-1.333c0-28.462 83.186-29.647 83.186-106.667 0-58.002-60.165-102-116.531-102zM256 338c-25.365 0-46 20.635-46 46 0 25.364 20.635 46 46 46s46-20.636 46-46c0-25.365-20.635-46-46-46z"></path></svg> <strong>Help Center</strong></a></li></ul><ul class="footer--research-interests"><li>Find new research papers in:</li><li><a href="https://www.academia.edu/Documents/in/Physics">Physics</a></li><li><a href="https://www.academia.edu/Documents/in/Chemistry">Chemistry</a></li><li><a href="https://www.academia.edu/Documents/in/Biology">Biology</a></li><li><a href="https://www.academia.edu/Documents/in/Health_Sciences">Health Sciences</a></li><li><a href="https://www.academia.edu/Documents/in/Ecology">Ecology</a></li><li><a href="https://www.academia.edu/Documents/in/Earth_Sciences">Earth Sciences</a></li><li><a href="https://www.academia.edu/Documents/in/Cognitive_Science">Cognitive Science</a></li><li><a href="https://www.academia.edu/Documents/in/Mathematics">Mathematics</a></li><li><a href="https://www.academia.edu/Documents/in/Computer_Science">Computer Science</a></li></ul><ul class="footer--legal-links hide-on-mobile"><li><a href="https://www.academia.edu/terms">Terms</a></li><li><a href="https://www.academia.edu/privacy">Privacy</a></li><li><a href="https://www.academia.edu/copyright">Copyright</a></li><li>Academia ©2024</li></ul></div> </body> </html>