{"id":5891,"date":"2022-10-24T15:46:25","date_gmt":"2022-10-24T13:46:25","guid":{"rendered":"https:\/\/www.cerege.fr\/?page_id=5891"},"modified":"2023-01-02T10:10:30","modified_gmt":"2023-01-02T09:10:30","slug":"anr-and-megafire","status":"publish","type":"page","link":"https:\/\/www.cerege.fr\/en\/sciences\/terre-et-planetes\/projets-terre-et-planete\/anr-et-megafire\/","title":{"rendered":"ANR ET-Megafire"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"5891\" class=\"elementor elementor-5891\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4faf47f2 elementor-section-full_width elementor-section-height-min-height elementor-section-height-default elementor-section-items-middle\" data-id=\"4faf47f2\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-5a09097d\" data-id=\"5a09097d\" 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\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-56295452 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"56295452\" 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-4bb35be6\" data-id=\"4bb35be6\" 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-184d10d8 elementor-widget elementor-widget-shortcode\" data-id=\"184d10d8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><nav aria-label=\"breadcrumbs\">\n            <div class=\"breadcrumb-container theme1\">\n                <ol>\n                                    <\/ol>\n            <\/div>\n        <\/nav>    <script type=\"application\/ld+json\">\n        {\n            \"@context\": \"http:\/\/schema.org\",\n            \"@type\": \"BreadcrumbList\",\n            \"itemListElement\": [\n                            ]\n        }\n    <\/script>\n   \n    <script>\n            <\/script>\n<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-50af7bf6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"50af7bf6\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wide\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-133d7dbf\" data-id=\"133d7dbf\" 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-16a122e0 elementor-widget elementor-widget-text-editor\" data-id=\"16a122e0\" 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<h2><span style=\"font-weight: normal;\">Megafeux tropicaux g\u00e9n\u00e9r\u00e9s par les impacts extra-terrestres producteurs de tectites au Quaternaire<\/span><\/h2><p>Nous proposons de caract\u00e9riser la r\u00e9ponse de la biosph\u00e8re continentale aux grands crat\u00e8res d\u2019impact, en particulier \u00e0 travers les m\u00e9gafeux g\u00e9n\u00e9r\u00e9s, li\u00e9s \u00e0 la fusion de la surface terrestre.<\/p><p>L\u2019\u00e9tude des tectites, i.e. des verres d\u2019impact \u00e9ject\u00e9s \u00e0 longue distance, sera centrale dans le projet. Seront \u00e9tudi\u00e9s trois impacts producteurs de tectites sur des surfaces foresti\u00e8res au Nicaragua, Ghana et Indochine, depuis 1,1 Ma. La r\u00e9ponse de l\u2019environnement \u00e0 l\u2019impact, indiqu\u00e9e par pollen, charbons etc., sera \u00e9tudi\u00e9e dans diverses archives marines et lacustres. La r\u00e9action entre mat\u00e9riel fondu et biomasse (\u00e9l\u00e9ments tels que C, P, S) sera trac\u00e9e en utilisant la variabilit\u00e9 de composition des tectites explor\u00e9e de mani\u00e8re syst\u00e9matique, ainsi que la caract\u00e9risation \u00e0 nano-\u00e9chelle des inclusions dans les tectites telles que phosphates, m\u00e9tal, etc.<\/p><p>Nous apporterons ainsi un nouvel \u00e9clairage sur les processus de formation des tectites et sur la r\u00e9ponse des \u00e9cosyst\u00e8mes aux m\u00e9gafeux<\/p><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-50 elementor-inner-column elementor-element elementor-element-3e132aec\" data-id=\"3e132aec\" 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-fe677b3 elementor-widget elementor-widget-text-editor\" data-id=\"fe677b3\" 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<h2><span style=\"font-weight: normal;\">2022-2026 : ANR ET-Megafire<br \/><\/span><\/h2><p>Responsable CEREGE, CR CNRS: <br \/><strong><a href=\"https:\/\/www.cerege.fr\/fr\/author\/pierre-rochette\/\" target=\"_blank\" rel=\"noopener\">Pierre Rochette<\/a><br \/><\/strong><br \/><em>Processus de g\u00e9n\u00e9ration des tectites dans les crat\u00e8res d&#8217;impacts extraterrestres et au sort de la biosph\u00e8re lors de cet impact<\/em><\/p><p class=\"Standard\"><strong>Partenaire <\/strong>: <br \/>Laboratoire de G\u00e9ologie de Lyon<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6c4830f1 elementor-widget elementor-widget-image\" data-id=\"6c4830f1\" 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=\"300\" height=\"122\" src=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/10\/aquarelleSodemi-300x122.png\" class=\"attachment-medium size-medium wp-image-5784\" alt=\"\" srcset=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/10\/aquarelleSodemi-300x122.png 300w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/10\/aquarelleSodemi-1024x415.png 1024w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/10\/aquarelleSodemi-768x311.png 768w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/10\/aquarelleSodemi-1536x622.png 1536w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/10\/aquarelleSodemi.png 2048w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/10\/aquarelleSodemi-18x7.png 18w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/10\/aquarelleSodemi-1320x535.png 1320w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\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<div class=\"elementor-element elementor-element-476a03e9 gallery-spacing-custom elementor-widget elementor-widget-image-gallery\" data-id=\"476a03e9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-gallery.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-image-gallery\">\n\t\t\t<div id='gallery-1' class='gallery galleryid-5891 gallery-columns-2 gallery-size-medium'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"476a03e9\" data-elementor-lightbox-title=\"Mode\u0301lisation de l\u2019e\u0301rosion et remplissage du crate\u0300re de Pantasma au Nicaragua (14 km de diame\u0300tre)\" 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class=\"elementor-spacer-inner\"><\/div>\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<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Megafeux tropicaux g\u00e9n\u00e9r\u00e9s par les impacts extra-terrestres producteurs de tectites au Quaternaire Nous proposons de caract\u00e9riser la r\u00e9ponse de la biosph\u00e8re continentale aux grands crat\u00e8res d\u2019impact, en particulier \u00e0 travers [&hellip;]<\/p>\n","protected":false},"author":551,"featured_media":1873,"parent":4210,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-5891","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"publishpress_future_action":{"enabled":false,"date":"2026-05-16 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