{"id":29351,"date":"2026-04-22T17:34:08","date_gmt":"2026-04-22T15:34:08","guid":{"rendered":"https:\/\/www.cerege.fr\/?page_id=29351"},"modified":"2026-04-24T11:47:46","modified_gmt":"2026-04-24T09:47:46","slug":"analyse-des-silicates","status":"publish","type":"page","link":"https:\/\/www.cerege.fr\/fr\/equipements\/poles-techniques\/analyse-des-isotopes-stables-paniss-2\/analyse-des-silicates\/","title":{"rendered":"Analyse des Silicates"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"29351\" class=\"elementor elementor-29351\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-0dbc2a9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0dbc2a9\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div 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d=\"M33,12.02c1.65,0,3-1.35,3-3s-1.35-3-3-3-3,1.35-3,3,1.35,3,3,3Zm0-5c1.1,0,2,.9,2,2s-.9,2-2,2-2-.9-2-2,.9-2,2-2Z\"><\/path><path d=\"M31.48,27.2c1.1,0,2-.9,2-2s-.9-2-2-2-2,.9-2,2,.9,2,2,2Zm0-3.33c.74,0,1.33,.6,1.33,1.33s-.6,1.33-1.33,1.33-1.33-.6-1.33-1.33,.6-1.33,1.33-1.33Z\"><\/path><\/svg>\t\t\t\t<\/span>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t<div class=\"elementor-icon-box-content\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-icon-box-title\">\n\t\t\t\t\t\t<span  >\n\t\t\t\t\t\t\tOutils\t\t\t\t\t\t<\/span>\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\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-05a67f9\" data-id=\"05a67f9\" 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-b01365d elementor-widget elementor-widget-text-editor\" data-id=\"b01365d\" 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>Une ligne de <strong>fluoration-laser-IRMS<\/strong> de l\u2019oxyg\u00e8ne des silicates, avec <strong>BrF5 et laser Infra-Rouge \u00e0 CO2 (CO2-laser 30W<\/strong>).<br \/>Cette ligne reli\u00e9e au spectrom\u00e8tre de masse <strong>Delta V Plus<\/strong> (Thermo Fisher Scientific) permet l\u2019extraction de l\u2019<strong>oxyg\u00e8ne des silicates et oxydes<\/strong> et les mesures avec une tr\u00e8s grande pr\u00e9cision de la t<strong>riple composition de l\u2019oxyg\u00e8ne sur \u00e9chantillons de silicates et oxydes<\/strong> (silicates, silicates biog\u00e9niques et (micro)m\u00e9t\u00e9orites) de 0,3 \u00e0 2 mg<\/p><p>Une <strong>ligne de d\u00e9shydratation sous flux d\u2019azote<\/strong> et \u00e0 tr\u00e8s haute temp\u00e9rature (1100\u00b0C). Elle permet la d\u00e9shydroxylation des \u00e9chantillons de silice amorphe hydrat\u00e9e pr\u00e9alable \u00e0 leur analyse en fluorination-laser-IRMS<\/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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-16261f9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"16261f9\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-20 elementor-top-column elementor-element elementor-element-816c2e1\" data-id=\"816c2e1\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-20 elementor-top-column elementor-element elementor-element-2577a01\" data-id=\"2577a01\" 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-69a6d21 elementor-widget elementor-widget-image\" data-id=\"69a6d21\" 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=\"800\" height=\"451\" src=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/4000-2252-max-4-1-1024x577.jpg\" class=\"attachment-large size-large wp-image-29540\" alt=\"\" srcset=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/4000-2252-max-4-1-1024x577.jpg 1024w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/4000-2252-max-4-1-300x169.jpg 300w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/4000-2252-max-4-1-768x432.jpg 768w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/4000-2252-max-4-1-1536x865.jpg 1536w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/4000-2252-max-4-1-scaled.jpg 2048w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/4000-2252-max-4-1-18x10.jpg 18w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/4000-2252-max-4-1-1320x743.jpg 1320w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\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-20 elementor-top-column elementor-element elementor-element-18e6573\" data-id=\"18e6573\" 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-3b6a51b elementor-widget elementor-widget-image\" data-id=\"3b6a51b\" 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 decoding=\"async\" width=\"800\" height=\"519\" src=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/laser-silicates-david-1-1024x664.jpeg\" class=\"attachment-large size-large wp-image-29643\" alt=\"\" srcset=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/laser-silicates-david-1-1024x664.jpeg 1024w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/laser-silicates-david-1-300x195.jpeg 300w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/laser-silicates-david-1-768x498.jpeg 768w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/laser-silicates-david-1-18x12.jpeg 18w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/laser-silicates-david-1.jpeg 1169w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\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-20 elementor-top-column elementor-element elementor-element-5897d81\" data-id=\"5897d81\" 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-09c1f81 elementor-widget elementor-widget-image\" data-id=\"09c1f81\" 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 decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/Spectrometre2masse-1024x640.jpg\" class=\"attachment-large size-large wp-image-29322\" alt=\"\" srcset=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/Spectrometre2masse-1024x640.jpg 1024w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/Spectrometre2masse-300x187.jpg 300w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/Spectrometre2masse-768x480.jpg 768w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/Spectrometre2masse-1536x960.jpg 1536w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/Spectrometre2masse-scaled.jpg 2048w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/Spectrometre2masse-18x12.jpg 18w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/Spectrometre2masse-1320x825.jpg 1320w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\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-20 elementor-top-column elementor-element elementor-element-b8e2e99\" data-id=\"b8e2e99\" 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-4798aa0 elementor-widget elementor-widget-image\" data-id=\"4798aa0\" 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 loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/12\/Ligne_deshydratation-sous_flux_dazote-1024x640.jpg\" class=\"attachment-large size-large wp-image-12575\" alt=\"\" srcset=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/12\/Ligne_deshydratation-sous_flux_dazote-1024x640.jpg 1024w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/12\/Ligne_deshydratation-sous_flux_dazote-300x188.jpg 300w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/12\/Ligne_deshydratation-sous_flux_dazote-768x480.jpg 768w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/12\/Ligne_deshydratation-sous_flux_dazote-1536x960.jpg 1536w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/12\/Ligne_deshydratation-sous_flux_dazote-18x12.jpg 18w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/12\/Ligne_deshydratation-sous_flux_dazote-1320x825.jpg 1320w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/12\/Ligne_deshydratation-sous_flux_dazote.jpg 1702w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9f9995d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9f9995d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-20 elementor-top-column elementor-element elementor-element-221259a\" data-id=\"221259a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-20 elementor-top-column elementor-element elementor-element-50c013d\" data-id=\"50c013d\" 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-57a70aa elementor-widget elementor-widget-text-editor\" data-id=\"57a70aa\" 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><strong>Ligne de fluoration et extraction des gaz<\/strong><\/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-20 elementor-top-column elementor-element elementor-element-48b7efb\" data-id=\"48b7efb\" 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-cc798af elementor-widget elementor-widget-text-editor\" data-id=\"cc798af\" 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><strong>Laser MIR 10<\/strong><\/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-20 elementor-top-column elementor-element elementor-element-ac79277\" data-id=\"ac79277\" 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-81c1490 elementor-widget elementor-widget-text-editor\" data-id=\"81c1490\" 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><strong>Delta V Plus<\/strong><\/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-20 elementor-top-column elementor-element elementor-element-aa7c642\" data-id=\"aa7c642\" 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-d9aa184 elementor-widget elementor-widget-text-editor\" data-id=\"d9aa184\" 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><strong>Ligne de d\u00e9shydratation sous flux d&#8217;Azote<\/strong><\/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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4ea57e8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4ea57e8\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f1cbb48\" data-id=\"f1cbb48\" 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-5000991 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"5000991\" 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\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-80ba476 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"80ba476\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-8077b18\" data-id=\"8077b18\" 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-48928bf icones elementor-view-default elementor-mobile-position-block-start elementor-widget elementor-widget-icon-box\" data-id=\"48928bf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-box-wrapper\">\n\n\t\t\t\t\t\t<div class=\"elementor-icon-box-icon\">\n\t\t\t\t<span  class=\"elementor-icon\">\n\t\t\t\t<i aria-hidden=\"true\" class=\"far fa-list-alt\"><\/i>\t\t\t\t<\/span>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t<div class=\"elementor-icon-box-content\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-icon-box-title\">\n\t\t\t\t\t\t<span  >\n\t\t\t\t\t\t\tApplications\t\t\t\t\t\t<\/span>\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\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-6feac63\" data-id=\"6feac63\" 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-27de7d8 elementor-widget elementor-widget-text-editor\" data-id=\"27de7d8\" 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-family: var( --e-global-typography-text-font-family ), Sans-serif; caret-color: #000000; color: #000000;\">Les compositions en \u03b4<\/span><sup style=\"font-family: var( --e-global-typography-text-font-family ), Sans-serif; caret-color: #000000; color: #000000;\">18<\/sup><span style=\"font-family: var( --e-global-typography-text-font-family ), Sans-serif; caret-color: #000000; color: #000000;\">O, \u03b4<\/span><sup style=\"font-family: var( --e-global-typography-text-font-family ), Sans-serif; caret-color: #000000; color: #000000;\">17<\/sup><span style=\"font-family: var( --e-global-typography-text-font-family ), Sans-serif; caret-color: #000000; color: #000000;\">O et<\/span><span style=\"font-family: var( --e-global-typography-text-font-family ), Sans-serif; caret-color: #000000; color: #000000;\">\u00a0<\/span><sup style=\"font-family: var( --e-global-typography-text-font-family ), Sans-serif; caret-color: #000000; color: #000000;\">17<\/sup><span style=\"font-family: var( --e-global-typography-text-font-family ), Sans-serif; caret-color: #000000; color: #000000;\">O-excess des silicates biog\u00e9niques (phytolithes, diatom\u00e9es), des min\u00e9raux et oxydes authig\u00e8nes, des m\u00e9t\u00e9orites et microm\u00e9t\u00e9orites\u00a0sont analys\u00e9es au CEREGE pour\u00a0:<\/span><\/p><ul><li><span style=\"caret-color: #000000; color: #000000; font-family: var( --e-global-typography-text-font-family ), Sans-serif;\">La mise au point de nouveaux traceurs pal\u00e9oclimatiques (e.g. humidit\u00e9 relative atmosph\u00e9rique continentale).<\/span><\/li><li>La reconstitution de la dynamique pass\u00e9e du cycle de l\u2019eau continental : origine et quantit\u00e9 des pr\u00e9cipitations, humidit\u00e9 relative atmosph\u00e9rique, bilan hydrique des lacs, flux d\u2019\u00e9vapo-transpiration \u00e0 l\u2019interface sol-plante-atmosph\u00e8re.<\/li><li>L\u2019\u00e9tude des processus d\u2019alt\u00e9ration et de p\u00e9dogen\u00e8se.<\/li><li>La caract\u00e9risation des corps-parents des m\u00e9t\u00e9orites et micro-m\u00e9t\u00e9orites et la d\u00e9termination des flux de mati\u00e8re extra-terrestre.<\/li><\/ul>\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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b724685 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b724685\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-31a1718\" data-id=\"31a1718\" 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-eebfa81 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"eebfa81\" 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\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-fdc8c56 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"fdc8c56\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-f532a44\" data-id=\"f532a44\" 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-6e9d404 icones elementor-view-default elementor-mobile-position-block-start elementor-widget elementor-widget-icon-box\" data-id=\"6e9d404\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-box-wrapper\">\n\n\t\t\t\t\t\t<div class=\"elementor-icon-box-icon\">\n\t\t\t\t<span  class=\"elementor-icon\">\n\t\t\t\t<i aria-hidden=\"true\" class=\"far fa-handshake\"><\/i>\t\t\t\t<\/span>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t<div class=\"elementor-icon-box-content\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-icon-box-title\">\n\t\t\t\t\t\t<span  >\n\t\t\t\t\t\t\tUtilisateurs et collaborateurs\t\t\t\t\t\t<\/span>\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\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-9dbf0e6\" data-id=\"9dbf0e6\" 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-17ee87e elementor-widget elementor-widget-text-editor\" data-id=\"17ee87e\" 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><a href=\"https:\/\/www.cerege.fr\/fr\/cerege\/anne-alexandre\/\"><strong>Anne Alexandre<\/strong><\/a>, Directeur de Recherche CNRS: \u00a0<a href=\"mailto:alexandre@cerege.fr\">alexandre@cerege.fr<\/a><\/p><p><a href=\"https:\/\/www.cerege.fr\/fr\/cerege\/david-au-yang\/\"><strong>David Au Yang<\/strong><\/a>, Ing\u00e9nieur de Recherche IRD: \u00a0<a href=\"mailto:Auyang@cerege.fr\">auyang@cerege.fr<\/a><\/p><p><a href=\"https:\/\/www.cerege.fr\/fr\/cerege\/julie-aleman\/\"><strong>Julie Aleman <\/strong><\/a>, charg\u00e9e de recherche CNRS: \u00a0<a href=\"mailto:aleman@cerege.fr\">aleman@cerege.fr<\/a><\/p><p><a href=\"https:\/\/www.cerege.fr\/fr\/cerege\/robin-havas\/\"><strong>Robin Havas<\/strong><\/a>, Post Doc CNRS: \u00a0<a href=\"mailto:havas@cerege.fr\">havas@cerege.fr<\/a><\/p><p><a href=\"https:\/\/www.cerege.fr\/fr\/cerege\/corinne-sonzogni\/\"><strong>Corinne Sonzogni<\/strong><\/a>, Ing\u00e9nieur de Recherche CNRS: \u00a0<a href=\"mailto:sonzogni@cerege.fr\">sonzogni@cerege.fr<\/a><\/p><p><a href=\"https:\/\/www.cerege.fr\/fr\/cerege\/jerome-gattacceca\/\"><strong>Jerome Gattacceca<\/strong><\/a>, Directeur de Recherche CNRS: \u00a0<a href=\"mailto:gattacceca@cerege.fr\">gattacceca@cerege.fr<\/a><\/p><p><a href=\"https:\/\/www.cerege.fr\/fr\/cerege\/florence-sylvestre\/\"><strong>Florence Sylvestre<\/strong><\/a>, Directeur de Recherche IRD: \u00a0<a href=\"mailto:sonzogni@cerege.fr\">sylvestre@cerege.fr<\/a><\/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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-327ea47 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"327ea47\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-58b0804\" data-id=\"58b0804\" 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-2288aec elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"2288aec\" 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\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-36ff17d elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"36ff17d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d767d21\" data-id=\"d767d21\" 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-396dbbc elementor-arrows-position-inside elementor-pagination-position-outside elementor-widget elementor-widget-image-carousel\" data-id=\"396dbbc\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;image_spacing_custom&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:9,&quot;sizes&quot;:[]},&quot;slides_to_show&quot;:&quot;5&quot;,&quot;slides_to_scroll&quot;:&quot;1&quot;,&quot;navigation&quot;:&quot;both&quot;,&quot;autoplay&quot;:&quot;yes&quot;,&quot;pause_on_hover&quot;:&quot;yes&quot;,&quot;pause_on_interaction&quot;:&quot;yes&quot;,&quot;autoplay_speed&quot;:5000,&quot;infinite&quot;:&quot;yes&quot;,&quot;speed&quot;:500,&quot;image_spacing_custom_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;image_spacing_custom_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"image-carousel.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-image-carousel-wrapper swiper\" role=\"region\" aria-roledescription=\"carousel\" aria-label=\"Carrousel d\u2019images\" dir=\"ltr\">\n\t\t\t<div class=\"elementor-image-carousel swiper-wrapper swiper-image-stretch\" aria-live=\"off\">\n\t\t\t\t\t\t\t\t<div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"1 sur 7\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/4000-2252-max-6-1024x577.jpg\" alt=\"4000-2252-max-6\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"2 sur 7\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/4000-2252-max-5-1-1024x577.jpg\" alt=\"4000-2252-max-5\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"3 sur 7\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/DSC01023-1024x683.jpg\" alt=\"DSC01023\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"4 sur 7\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/4000-2252-max-3-1-1024x577.jpg\" alt=\"4000-2252-max-3\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"5 sur 7\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/3534-2170-max-1-1024x629.jpg\" alt=\"3534-2170-max\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"6 sur 7\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2026\/04\/4000-2252-max-8-1-1024x577.jpg\" alt=\"4000-2252-max-8\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"7 sur 7\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2023\/07\/Florence_Sylvestre_Tchad_PANISS.jpg\" alt=\"\" \/><\/figure><\/div>\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-prev\" role=\"button\" tabindex=\"0\">\n\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"eicon-chevron-left\"><\/i>\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-next\" role=\"button\" tabindex=\"0\">\n\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"eicon-chevron-right\"><\/i>\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"swiper-pagination\"><\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Responsables Anne Alexandre, Directeur de Recherche : \u00a0alexandre@cerege.fr David Au Yang, Ing\u00e9nieur de Recherche: \u00a0auyang@cerege.fr Outils Une ligne de fluoration-laser-IRMS de l\u2019oxyg\u00e8ne des silicates, avec BrF5 et laser Infra-Rouge \u00e0 [&hellip;]<\/p>\n","protected":false},"author":749,"featured_media":12594,"parent":9261,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-29351","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"publishpress_future_action":{"enabled":false,"date":"2026-05-10 13:16:55","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/www.cerege.fr\/fr\/wp-json\/wp\/v2\/pages\/29351","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cerege.fr\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.cerege.fr\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.cerege.fr\/fr\/wp-json\/wp\/v2\/users\/749"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cerege.fr\/fr\/wp-json\/wp\/v2\/comments?post=29351"}],"version-history":[{"count":5,"href":"https:\/\/www.cerege.fr\/fr\/wp-json\/wp\/v2\/pages\/29351\/revisions"}],"predecessor-version":[{"id":29758,"href":"https:\/\/www.cerege.fr\/fr\/wp-json\/wp\/v2\/pages\/29351\/revisions\/29758"}],"up":[{"embeddable":true,"href":"https:\/\/www.cerege.fr\/fr\/wp-json\/wp\/v2\/pages\/9261"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cerege.fr\/fr\/wp-json\/wp\/v2\/media\/12594"}],"wp:attachment":[{"href":"https:\/\/www.cerege.fr\/fr\/wp-json\/wp\/v2\/media?parent=29351"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}