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>\n\t\t\t\t\t\t\tApplications\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2215d377 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"2215d377\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bd46e29 elementor-widget elementor-widget-text-editor\" data-id=\"bd46e29\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: normal;\"><span style=\"color: #0f72bb;\">Contacts<\/span><\/span><\/p><p>\u00a0<\/p><ul><li><a href=\"https:\/\/www.cerege.fr\/fr\/users\/edouard-bard\"><span style=\"text-decoration: none; text-underline: none;\">Edouard Bard<\/span><\/a>, <a href=\"https:\/\/www.cerege.fr\/fr\/users\/kazuyo-tachikawa\"><span style=\"text-decoration: none; text-underline: none;\">Kazuyo Tachikawa<\/span><\/a>, Responsables scientifiques<br \/><br \/><\/li><li><a href=\"https:\/\/www.cerege.fr\/fr\/users\/marta-garcia-molina\"><span style=\"text-decoration: none; text-underline: none;\">Marta Garcia<\/span><\/a>, Responsable technique<\/li><\/ul><p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-57db26c\" data-id=\"57db26c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-25fc3094 elementor-widget elementor-widget-text-editor\" data-id=\"25fc3094\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>La composition chimique \u00e9l\u00e9mentaire des archives s\u00e9dimentaires marines et lacustres fournit des informations pr\u00e9cieuses pour reconstituer les param\u00e8tres climatiques et environnementaux. Nous utilisons deux approches compl\u00e9mentaires : l\u2019analyse rapide et non destructive en haute r\u00e9solution spatiale gr\u00e2ce \u00e0 un scanner multifonction micro fluorescence des rayons X (micro-XRF) et l\u2019analyse quantitative des concentrations d\u2019\u00e9l\u00e9ments \u00e0 partir d\u2019\u00e9chantillons discrets \u00e0 l\u2019aide d\u2019un ICP-QMS (inductively coupled plasma\u2013quadrupole mass spectrometry). L\u2019ICP-MS est utilis\u00e9 d\u2019une part pour calibrer quantitativement les profils obtenus par le scanner XRF et d\u2019autre part pour mesurer les rapports \u00e9l\u00e9mentaires dans les carbonates comme indicateurs pal\u00e9oc\u00e9anographiques.<\/p><p>L\u2019ICP-QMS et le scanner XRF ont \u00e9t\u00e9 install\u00e9s en 2007 et 2008 dans deux pi\u00e8ces du b\u00e2timent Trocad\u00e9ro, Antenne du Coll\u00e8ge de France. A l\u2019occasion de la r\u00e9fection de 2014, une chambre froide a \u00e9t\u00e9 install\u00e9e pour stocker les carottes s\u00e9dimentaires avant leur analyse au scanner XRF. Les \u00e9quipements de l\u2019unit\u00e9 de g\u00e9ochimie inorganique ont \u00e9t\u00e9 financ\u00e9s par des cr\u00e9dits attribu\u00e9s au Coll\u00e8ge de France et au CEREGE.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-7c26dd06\" data-id=\"7c26dd06\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-44687a4a elementor-widget elementor-widget-image\" data-id=\"44687a4a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"400\" height=\"250\" src=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2023\/01\/core-itrax2.jpg\" 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\u00a0 La composition chimique \u00e9l\u00e9mentaire des archives s\u00e9dimentaires marines et lacustres fournit des informations pr\u00e9cieuses pour [&hellip;]<\/p>\n","protected":false},"author":551,"featured_media":13888,"parent":9276,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-13957","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"publishpress_future_action":{"enabled":false,"date":"2026-04-11 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