{"id":435,"date":"2025-04-02T12:00:00","date_gmt":"2025-04-02T12:00:00","guid":{"rendered":"https:\/\/grenoble.apbg.org\/?p=435"},"modified":"2026-01-04T20:15:27","modified_gmt":"2026-01-04T20:15:27","slug":"chamrousse-le-plus-vieil-ocean-de-france","status":"publish","type":"post","link":"https:\/\/grenoble.apbg.fr\/?p=435","title":{"rendered":"Conf\u00e9rence du 2 avril &amp; sortie du 28 juin CHAMROUSSE : le plus vieil oc\u00e9an de France"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/10_Lacs-Robert-de-lOursiere-b-scaled-1.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"527\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/10_Lacs-Robert-de-lOursiere-b-scaled-1-1024x527.jpg\" alt=\"\" class=\"wp-image-1518\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/10_Lacs-Robert-de-lOursiere-b-scaled-1-1024x527.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/10_Lacs-Robert-de-lOursiere-b-scaled-1-300x154.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/10_Lacs-Robert-de-lOursiere-b-scaled-1-768x395.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/10_Lacs-Robert-de-lOursiere-b-scaled-1-1536x791.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/10_Lacs-Robert-de-lOursiere-b-scaled-1-2048x1054.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Lacs Robert et de l&rsquo;Oursi\u00e8re (Photo C. Esmenjaud)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"has-large-font-size wp-block-paragraph\" style=\"text-decoration:underline\"><strong>1\/ Conf\u00e9rence du Mus\u00e9um de Grenoble le 2 avril 2025<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\">Conf\u00e9rence donn\u00e9e par Mesdames:<\/p>\n\n\n\n<p class=\"has-text-align-center has-regular-font-size wp-block-paragraph\"><br><strong>JANOTS \u00c9milie<\/strong>    <em>Maitre de Conf\u00e9rences \u00e0 l\u2019<strong>UGA-ISTerre<\/strong> Min\u00e9ralogie<\/em><br>&amp;<br><strong>CORDIER Carole<\/strong>      <em> Maitre de Conf\u00e9rences \u00e0 l\u2019<strong>UGA-ISTerre<\/strong> Min\u00e9ralogie<\/em><br><\/p>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\"><br>Dans cette pr\u00e9sentation, il a \u00e9t\u00e9 montr\u00e9 comment la succession des roches depuis les stations jusqu&rsquo;\u00e0 la croix de<br>Chamrousse nous plonge dans les profondeurs du plancher oc\u00e9anique jusqu&rsquo;au manteau terrestre.<\/p>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\">Il a \u00e9t\u00e9 pr\u00e9sent\u00e9 \u00e9galement des r\u00e9sultats in\u00e9dits de datation <em>in situ<\/em> sur zircon qui remettent en question les mod\u00e8les de formation de ce tr\u00e8s vieil oc\u00e9an.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\">Organis\u00e9e par L<strong>\u2019APBG Grenoble<\/strong> (Association des Professeurs de Biologie et G\u00e9ologie); le \u00ab\u00a0<strong>Mus\u00e9um de Grenoble<\/strong>\u00ab\u00a0; la <strong>D.A.A.C Grenoble<\/strong> (D\u00e9l\u00e9gation Acad\u00e9mique aux Arts et \u00e0 la Culture); en partenariat avec l\u2019<strong>OSUG <\/strong>et <strong>ISTerre<\/strong> ; dans le cadre de l\u2019ann\u00e9e des G\u00e9osciences.<\/p>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"has-large-font-size wp-block-paragraph\" style=\"text-decoration:underline\"><strong>2\/ Sortie sur le terrain le 28 juin 2025<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-regular-font-size wp-elements-8afc3c4f4dc4a4fa3a5bbf99caa28e51 wp-block-paragraph\"><strong>Parcours<\/strong>: T\u00e9l\u00e9cabine<strong> <\/strong>de la <em>Croix de CHAMROUSSE<\/em> puis sentier vers le <em>Col de la Botte<\/em>. Le premier affleurement est au niveau de l&rsquo;ar\u00eate du <em>Col de la Botte<\/em> on y trouve des serpentines. L&rsquo;affleurement suivant est la zone de gros blocs blanch\u00e2tres \u00e9croul\u00e9s (gabbros et chromitites) sous le <em>sommet du Manqu\u00e9<\/em> en allant vers le <em>Col des Lessine<\/em>s. Un troisi\u00e8me affleurement est un gros bloc orang\u00e9 de manteau d\u00e9form\u00e9 en fin de descente vers les <em>Lacs Robert<\/em>. Le dernier se situe entre le bord est-sud-est du lac et la cabane avec les filons basaltiques dans les gabbros. Remont\u00e9e \u00e0 la Croix par la piste de ski. <br><\/p>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/04\/Chamrousse-Ophiolite-Relict-of-a-Dev\u2010Carb-Ocean.pdf\" type=\"application\/pdf\" style=\"width:100%;height:200px\" aria-label=\"Contenu embarqu\u00e9 Chamrousse Ophiolite Relict of a Dev\u2010Carb Ocean.\"><\/object><a id=\"wp-block-file--media-47229d3e-6f7d-40a2-b64d-02e2da36b4db\" href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/04\/Chamrousse-Ophiolite-Relict-of-a-Dev\u2010Carb-Ocean.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Chamrousse Ophiolite Relict of a Dev\u2010Carb Ocean<\/a><a href=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/04\/Chamrousse-Ophiolite-Relict-of-a-Dev\u2010Carb-Ocean.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-47229d3e-6f7d-40a2-b64d-02e2da36b4db\">T\u00e9l\u00e9charger<\/a><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ci-dessous la publication de Mars 2025 (en anglais) qui a initi\u00e9 la conf\u00e9rence et la sortie.<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Quelques photos des paysages et des affleurements  :<\/p>\n\n\n\n<figure data-wp-context=\"{&quot;galleryId&quot;:&quot;6a23652a2742d&quot;}\" data-wp-interactive=\"core\/gallery\" class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a23652a27795&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a23652a27795\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"1529\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/20_Groupe-scaled-1-1024x768.jpg\" alt=\"\" class=\"wp-image-1529\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/20_Groupe-scaled-1-1024x768.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/20_Groupe-scaled-1-300x225.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/20_Groupe-scaled-1-768x576.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/20_Groupe-scaled-1-1536x1152.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/20_Groupe-scaled-1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Au sommet de la Croix de Chamrousse<\/figcaption><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a23652a27b6d&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a23652a27b6d\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"1647\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/ParcoursChamrousse-1024x768.jpg\" alt=\"\" class=\"wp-image-1647\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/ParcoursChamrousse-1024x768.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/ParcoursChamrousse-300x225.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/ParcoursChamrousse-768x576.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/ParcoursChamrousse-1536x1152.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/ParcoursChamrousse.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Lacs Robert<\/figcaption><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a23652a27f28&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a23652a27f28\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"1615\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/IMG_20250628_101245_1-1024x768.jpg\" alt=\"\" class=\"wp-image-1615\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/IMG_20250628_101245_1-1024x768.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/IMG_20250628_101245_1-300x225.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/IMG_20250628_101245_1-768x576.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/IMG_20250628_101245_1-1536x1152.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/IMG_20250628_101245_1.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Mares sous le Col de la Botte et vue sur le Mt Aiguille<\/figcaption><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a23652a282c6&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a23652a282c6\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"1515\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/8_Le-Manque-scaled-1-1024x768.jpg\" alt=\"\" class=\"wp-image-1515\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/8_Le-Manque-scaled-1-1024x768.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/8_Le-Manque-scaled-1-300x225.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/8_Le-Manque-scaled-1-768x576.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/8_Le-Manque-scaled-1-1536x1152.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/8_Le-Manque-scaled-1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">\u00c9boulis sous le Manqu\u00e9<\/figcaption><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a23652a2866a&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a23652a2866a\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"1632\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370081-scaled-1-1024x768.jpg\" alt=\"\" class=\"wp-image-1632\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370081-scaled-1-1024x768.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370081-scaled-1-300x225.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370081-scaled-1-768x576.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370081-scaled-1-1536x1152.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370081-scaled-1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Gabbros d\u00e9form\u00e9s<\/figcaption><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a23652a289ea&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a23652a289ea\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"1633\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370088-scaled-1-1024x768.jpg\" alt=\"\" class=\"wp-image-1633\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370088-scaled-1-1024x768.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370088-scaled-1-300x225.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370088-scaled-1-768x576.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370088-scaled-1-1536x1152.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370088-scaled-1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Chromitite (Serpentinite + chromite)<\/figcaption><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a23652a28d81&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a23652a28d81\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"1634\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370096-scaled-1-1024x768.jpg\" alt=\"\" class=\"wp-image-1634\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370096-scaled-1-1024x768.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370096-scaled-1-300x225.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370096-scaled-1-768x576.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370096-scaled-1-1536x1152.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370096-scaled-1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Manteau d\u00e9form\u00e9 &#8211; bandes riches en pyrox\u00e8nes<\/figcaption><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a23652a290f4&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a23652a290f4\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"1635\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370098-scaled-1-1024x768.jpg\" alt=\"\" class=\"wp-image-1635\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370098-scaled-1-1024x768.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370098-scaled-1-300x225.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370098-scaled-1-768x576.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370098-scaled-1-1536x1152.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/P1370098-scaled-1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Filon basaltique microlitique qui recoupe les gabbros<\/figcaption><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a23652a29485&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a23652a29485\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"1525\" src=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/17_Meije-Rateau-scaled-1-1024x768.jpg\" alt=\"\" class=\"wp-image-1525\" srcset=\"https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/17_Meije-Rateau-scaled-1-1024x768.jpg 1024w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/17_Meije-Rateau-scaled-1-300x225.jpg 300w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/17_Meije-Rateau-scaled-1-768x576.jpg 768w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/17_Meije-Rateau-scaled-1-1536x1152.jpg 1536w, https:\/\/grenoble.apbg.fr\/wp-content\/uploads\/2025\/11\/17_Meije-Rateau-scaled-1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">La Meije<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Photos J.C Bourgueil-C.Esmenjaud-D.Giraud<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Lacs Robert et de l&rsquo;Oursi\u00e8re (Photo C. Esmenjaud) 1\/ Conf\u00e9rence du Mus\u00e9um de Grenoble le 2 avril 2025 Conf\u00e9rence donn\u00e9e par Mesdames: JANOTS \u00c9milie Maitre de Conf\u00e9rences \u00e0 l\u2019UGA-ISTerre Min\u00e9ralogie&amp;CORDIER Carole Maitre de Conf\u00e9rences \u00e0 l\u2019UGA-ISTerre Min\u00e9ralogie Dans cette pr\u00e9sentation, il a \u00e9t\u00e9 montr\u00e9 comment la succession des roches depuis les stations jusqu&rsquo;\u00e0 la croix &hellip; <\/p>\n<p><a class=\"more-link btn\" href=\"https:\/\/grenoble.apbg.fr\/?p=435\">Lire la suite<\/a><\/p>\n","protected":false},"author":1,"featured_media":1518,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,5],"tags":[],"class_list":["post-435","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-conference","category-sortie","item-wrap"],"_links":{"self":[{"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=\/wp\/v2\/posts\/435","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=435"}],"version-history":[{"count":2,"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=\/wp\/v2\/posts\/435\/revisions"}],"predecessor-version":[{"id":1718,"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=\/wp\/v2\/posts\/435\/revisions\/1718"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=\/wp\/v2\/media\/1518"}],"wp:attachment":[{"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=435"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=435"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/grenoble.apbg.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=435"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}