{"id":6302,"date":"2026-03-16T10:19:15","date_gmt":"2026-03-16T09:19:15","guid":{"rendered":"https:\/\/leportaildelumiere.com\/?post_type=glossary&#038;p=6302"},"modified":"2026-03-16T10:19:17","modified_gmt":"2026-03-16T09:19:17","slug":"isotopique","status":"publish","type":"glossary","link":"https:\/\/leportaildelumiere.com\/index.php\/glossary\/isotopique\/","title":{"rendered":"Isotopique"},"content":{"rendered":"\n<p>La <strong>composition isotopique des roches<\/strong> est utilis\u00e9e par les g\u00e9ologues comme une preuve scientifique des cataclysmes pass\u00e9s.<\/p>\n\n\n\n<p>Voici les points cl\u00e9s mentionn\u00e9s :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Preuve d&rsquo;extinctions massives :<\/strong> L&rsquo;analyse de cette composition, combin\u00e9e \u00e0 l&rsquo;\u00e9tude des carottes de glace, a permis de d\u00e9couvrir que des \u00e9v\u00e9nements g\u00e9ologiques majeurs ont provoqu\u00e9 des extinctions massives par le pass\u00e9.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Lien avec le rythme galactique :<\/strong> Ces mesures r\u00e9v\u00e8lent que ces bouleversements co\u00efncident exactement avec les <strong>impulsions galactiques<\/strong> qui se produisent tous les 12 000 \u00e0 13 000 ans.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>T\u00e9moin des basculements de p\u00f4les :<\/strong> Elle sert de marqueur pour identifier les anciens changements physiques des p\u00f4les, des p\u00e9riodes de transition si intenses que seule une fraction de la population (0,1 \u00e0 10 %) parvenait \u00e0 survivre.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>La composition isotopique des roches est utilis\u00e9e par les g\u00e9ologues comme une preuve scientifique des&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"template":"","glossary-cat":[],"class_list":["post-6302","glossary","type-glossary","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/leportaildelumiere.com\/index.php\/wp-json\/wp\/v2\/glossary\/6302","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/leportaildelumiere.com\/index.php\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/leportaildelumiere.com\/index.php\/wp-json\/wp\/v2\/types\/glossary"}],"author":[{"embeddable":true,"href":"https:\/\/leportaildelumiere.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"version-history":[{"count":1,"href":"https:\/\/leportaildelumiere.com\/index.php\/wp-json\/wp\/v2\/glossary\/6302\/revisions"}],"predecessor-version":[{"id":6303,"href":"https:\/\/leportaildelumiere.com\/index.php\/wp-json\/wp\/v2\/glossary\/6302\/revisions\/6303"}],"wp:attachment":[{"href":"https:\/\/leportaildelumiere.com\/index.php\/wp-json\/wp\/v2\/media?parent=6302"}],"wp:term":[{"taxonomy":"glossary-cat","embeddable":true,"href":"https:\/\/leportaildelumiere.com\/index.php\/wp-json\/wp\/v2\/glossary-cat?post=6302"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}