{"id":22490,"date":"2024-02-16T10:38:25","date_gmt":"2024-02-16T09:38:25","guid":{"rendered":"https:\/\/www.cerege.fr\/?page_id=22490"},"modified":"2024-03-01T16:37:59","modified_gmt":"2024-03-01T15:37:59","slug":"planetology-2","status":"publish","type":"page","link":"https:\/\/www.cerege.fr\/en\/sciences\/terre-et-planetes\/planetologie-et-magnetisme\/","title":{"rendered":"Planetology and Magnetism"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"22490\" class=\"elementor elementor-22490\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-168c89d4 elementor-section-full_width elementor-section-height-min-height elementor-section-height-default elementor-section-items-middle\" data-id=\"168c89d4\" 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-568937b6\" data-id=\"568937b6\" 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-7ea65fab elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7ea65fab\" 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-14211fa5\" data-id=\"14211fa5\" 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-2a5c0afc elementor-widget elementor-widget-shortcode\" data-id=\"2a5c0afc\" 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-787ada32 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"787ada32\" 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-1012a1c4\" data-id=\"1012a1c4\" 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-1e3a5169 elementor-widget elementor-widget-text-editor\" data-id=\"1e3a5169\" 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 class=\"Standard\"><span style=\"font-weight: normal;\">\u00c9tudier les corps du syst\u00e8me solaire pour comprendre son histoire<\/span><\/h2><p class=\"Standard\">Notre groupe s\u2019int\u00e9resse aux corps solides du syst\u00e8me solaire : petits corps (ast\u00e9ro\u00efdes), plan\u00e8tes (Mars, Terre) et leurs satellites (Lune).<\/p><p class=\"Textbody\">Nos activit\u00e9s de recherche s\u2019\u00e9tendent depuis la formation de ces corps dans le disque protoplan\u00e9taire il y a 4.5 milliards d\u2019ann\u00e9es, jusqu\u2019\u00e0 des ph\u00e9nom\u00e8nes r\u00e9cents (impacts sur les surfaces plan\u00e9taires\u00a0: crat\u00e8res et \u00e9jectas associ\u00e9s), en passant par l\u2019\u00e9volution des petits corps (alt\u00e9ration aqueuse, m\u00e9tamorphisme thermique, structure interne).<\/p><p class=\"Textbody\">Nous utilisons divers outils pour lire l\u2019histoire du syst\u00e8me solaire enregistr\u00e9e dans les m\u00e9t\u00e9orites, les microm\u00e9t\u00e9orites, les surfaces plan\u00e9taires et leurs structures d\u2019impact\u00a0: g\u00e9ophysique de terrain, pal\u00e9omagn\u00e9tisme, g\u00e9ochimie isotopique (isotopes de l\u2019oxyg\u00e8ne, nucl\u00e9ides cosmog\u00e9niques), g\u00e9ologie, p\u00e9trographie, min\u00e9ralogie et g\u00e9ochimie.<\/p><p class=\"Textbody\">Ces activit\u00e9s s\u2019inscrivent notamment dans le cadre de l\u2019institut ORIGINES, qui vise \u00e0 f\u00e9d\u00e9rer les activit\u00e9s de chercheurs issus de diff\u00e9rents laboratoires d\u2019AMU autour de projets interdisciplinaires. De plus, l&#8217;\u00e9quipe Terre et Plan\u00e8tes abrite une collection majeure de m\u00e9t\u00e9orites, microm\u00e9t\u00e9orites, impactites (tectites&#8230;).<\/p><h2 class=\"Standard\"><span style=\"font-weight: normal;\">Caract\u00e9riser les variations temporelles et spatiales du champ magn\u00e9tique terrestre<\/span><\/h2><p>Cet axe de recherche s\u2019int\u00e9resse aux fluctuations spatiales et temporelles du champ magn\u00e9tique terrestre (CMT) pour comprendre leurs origines. Cela passe par des \u00e9tudes pal\u00e9o et arch\u00e9o-magn\u00e9tiques (en direction et en intensit\u00e9) de coul\u00e9es de lave, terres cuites arch\u00e9ologiques ou encore s\u00e9ries s\u00e9dimentaires.<br \/>Comprendre le fonctionnement de la g\u00e9odynamo n\u00e9cessite en effet une description fine des variations temporelles et spatiales du champ magn\u00e9tique terrestre. Nous caract\u00e9risons ces variations \u00e0 plusieurs \u00e9chelles\u00a0: du Ma au millier d\u2019ann\u00e9es, de l\u2019\u00e9chantillon aux sources lithosph\u00e9riques.<\/p><p>Nos travaux r\u00e9cents se concentrent sur\u00a0:<\/p><ul><li>l\u2019\u00e9tude pal\u00e9omagn\u00e9tique et arch\u00e9o-magn\u00e9tique d\u2019\u00e9chantillons provenant de zones peu repr\u00e9sent\u00e9es dans les bases de donn\u00e9es mondiales<\/li><li>la haute r\u00e9solution de la variation s\u00e9culaire du CMT pendant le dernier million d\u2019ann\u00e9es gr\u00e2ce au couplage entre pal\u00e9omagn\u00e9tisme et concentration en 10Be de carottes de s\u00e9diments<\/li><li>l\u2019\u00e9tude des propri\u00e9t\u00e9s magn\u00e9tiques d\u2019\u00e9chantillons de roches et s\u00e9diments : application arch\u00e9ologique (f\u00fbts de colonnes antiques en granite) et g\u00e9ologique (magn\u00e9tostratigraphie)<\/li><li>la mod\u00e9lisation g\u00e9ologique num\u00e9rique contrainte par les donn\u00e9es de champ magn\u00e9tique et de mesures magn\u00e9tiques sur \u00e9chantillons<\/li><li>la prospection g\u00e9ophysique sur sites arch\u00e9ologiques et\/ou g\u00e9ologiques<\/li><li>l\u2019\u00e9tude de l\u2019influence des conditions thermodynamiques sur l\u2019aimantation des roches : exp\u00e9rience unique de mesures d\u2019\u00e9chantillons sous pressions crustales<\/li><\/ul><p>\u00a0<\/p><p>\u00a0<\/p><p>\u00a0<\/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-667a5431\" data-id=\"667a5431\" 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-4cf992c1 elementor-widget elementor-widget-image\" data-id=\"4cf992c1\" data-element_type=\"widget\" data-e-type=\"widget\" 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src=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/09\/CEREGE_prospection_geophysique-300x200.jpg\" class=\"attachment-medium size-medium\" alt=\"\" srcset=\"https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/09\/CEREGE_prospection_geophysique-300x200.jpg 300w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/09\/CEREGE_prospection_geophysique-1024x683.jpg 1024w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/09\/CEREGE_prospection_geophysique-768x512.jpg 768w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/09\/CEREGE_prospection_geophysique-1536x1024.jpg 1536w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/09\/CEREGE_prospection_geophysique-scaled.jpg 2048w, https:\/\/www.cerege.fr\/wp-content\/uploads\/2022\/09\/CEREGE_prospection_geophysique-18x12.jpg 18w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\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-56ba8c5d elementor-widget elementor-widget-text-editor\" data-id=\"56ba8c5d\" 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<h3 style=\"padding-left: 40px;\"><span style=\"font-weight: normal;\"><span style=\"color: #0f72bb;\">Projets<\/span><\/span><\/h3><ul><li><p>2021-2025\u00a0: <a href=\"https:\/\/anr.fr\/Project-ANR-21-CE49-0014\" target=\"_blank\" rel=\"noopener\"><strong>ET-Megafires<\/strong><\/a> (ANR, Rochette) <em>Megafeux tropicaux<\/em><em> g<\/em><em>\u00e9n\u00e9r\u00e9s par les impacts d&#8217;ast\u00e9roides producteurs de tectites au Quaternaire<\/em><\/p><\/li><li><p class=\"moz-quote-pre\">2023-2026 : <a href=\"https:\/\/www.univ-amu.fr\/fr\/public\/collaborations-interdisciplinaires-0\" target=\"_blank\" rel=\"noopener\"><strong>EXOMIOLE<\/strong><\/a> (A*MIDEX, Quesnel) <em>Exogenic Matter, Impacts and the Origins of Life on Earth \u00c9tude du r\u00f4le des impacts de petits corps plan\u00e9taires sur la surface terrestre et origine de la vie.<\/em><\/p><\/li><\/ul><ul><li><p>2021-2023\u00a0: <strong>FAMES<\/strong> (Marie Sklodwoska-Curie, Maurel) <em>Fondamentaux et applications du magn\u00e9tisme extraterrestre<\/em><\/p><\/li><li><p>2021-2021: <strong>Cosmoflux<\/strong> (CNRS, Gattacceca) <em>Meteorite flux to the Earth<\/em><\/p><\/li><li><p>2016-2021\u00a0: <strong>MARSPRIME<\/strong> (ANR, Rochette) <em>Environnement primitif de mars<\/em><\/p><\/li><li><p>2022-2026\u00a0: <a href=\"https:\/\/www.cerege.fr\/equipements\/investissements-davenir\/e-diamant\/\"><strong>e-Diamant<\/strong> <\/a>(Equipex+, Gattacceca) <em>D\u00e9veloppement au CEREGE d\u2019un syst\u00e8me de microscopie magn\u00e9tique (Quantum Diamond Microscope) pour des applications \u00e0 l\u2019\u00e9tude des roches extraterrestres<\/em><\/p><\/li><li><p>2021-2024\u00a0: <strong>Geoimpact<\/strong> (CNES, Quesnel) <em>\u00c9tude g\u00e9ophysique et morphologique des structures d\u2019impact terrestres<\/em><\/p><\/li><li><p>2021-2022 : (Commune de Martigues, Rochette) <em>\u00c9tudes p\u00e9trographiques de sculptures protohistoriques d\u00e9couvertes autour de l\u2019\u00e9tang de Berre<\/em><\/p><\/li><li><p>\u00a02020-2021 : <strong>VSM<\/strong> (M\u00e9tropole, Rochette) <em>Achat Vibrating Sample Magnetometer<\/em><\/p><\/li><li><p>2020-2021\u00a0: <a href=\"http:\/\/www.univ-amu.fr\/fr\/public\/fcgm\" target=\"_blank\" rel=\"noopener\"><strong>FCGM<\/strong><\/a> (Arkaia, Rochette) <em>F\u00fbts de colonne en granite : marqueurs des \u00e9changes en M\u00e9diterran\u00e9e occidentale de l\u2019Antiquit\u00e9 \u00e0 l\u2019\u00e9poque moderne<br \/><\/em><\/p><\/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\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>\u00c9tudier les corps du syst\u00e8me solaire pour comprendre son histoire Notre groupe s\u2019int\u00e9resse aux corps solides du syst\u00e8me solaire : petits corps (ast\u00e9ro\u00efdes), plan\u00e8tes (Mars, Terre) et leurs satellites (Lune). [&hellip;]<\/p>\n","protected":false},"author":497,"featured_media":1873,"parent":827,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-22490","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"publishpress_future_action":{"enabled":false,"date":"2026-05-12 19:55:22","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/pages\/22490","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/users\/497"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/comments?post=22490"}],"version-history":[{"count":5,"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/pages\/22490\/revisions"}],"predecessor-version":[{"id":22704,"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/pages\/22490\/revisions\/22704"}],"up":[{"embeddable":true,"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/pages\/827"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/media\/1873"}],"wp:attachment":[{"href":"https:\/\/www.cerege.fr\/en\/wp-json\/wp\/v2\/media?parent=22490"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}