{"id":8925,"date":"2015-10-22T18:16:57","date_gmt":"2015-10-22T16:16:57","guid":{"rendered":"http:\/\/www.laterredufutur.com\/accueil\/?p=8925"},"modified":"2015-10-22T18:16:57","modified_gmt":"2015-10-22T16:16:57","slug":"des-scientifiques-auraient-retrouve-des-traces-de-theia-dans-le-manteau-de-notre-planete","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/des-scientifiques-auraient-retrouve-des-traces-de-theia-dans-le-manteau-de-notre-planete\/","title":{"rendered":"Des scientifiques auraient retrouv\u00e9 des traces de Theia dans le manteau de notre plan\u00e8te"},"content":{"rendered":"<div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p style=\"text-align: justify;\">Th\u00e9ia (ou parfois Orph\u00e9e) est un objet hypoth\u00e9tique du Syst\u00e8me solaire, suppos\u00e9 avoir exist\u00e9 par le pass\u00e9. Selon l&rsquo;hypoth\u00e8se dominante, la formation de la Lune est due \u00e0 la collision de la Terre (ou proto-Terre) avec un objet de la taille de Mars. Th\u00e9ia est l&rsquo;impacteur.<\/p>\n<p style=\"text-align: justify;\">Ils ont trouv\u00e9 une partie de la terre antique (Th\u00e9ia) dans le manteau ? Selon les rapports d&rsquo;une \u00e9tude pr\u00e9sent\u00e9e \u00e0 la Conf\u00e9rence Goldschmidt \u00e0 Sacramento en Californie, le rapport isotopique pr\u00e9alablement inexpliqu\u00e9 des profondeurs de la terre peut \u00eatre une sorte d'\u00a0\u00bb\u00e9cho\u00a0\u00bb de l&rsquo;ancienne Terre qui existait avant la collision avec un autre corps c\u00e9leste, qui, selon les experts, a conduit \u00e0 la formation de la Lune il y a 4,5 milliards d&rsquo;ann\u00e9es. Selon les auteurs de l&rsquo;\u00e9tude, la proportion donn\u00e9e peut repr\u00e9senter un signal \u00e0 partir d&rsquo;un mat\u00e9riau g\u00e9ologique qui existait avant la collision.<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/EmH0TXfLHE0?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=fr-FR&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p style=\"text-align: justify;\">Les scientifiques, de l&rsquo;Universit\u00e9 de Harvard, dirig\u00e9s par le professeur agr\u00e9g\u00e9 Sujoy Mukhopadhyay croient qu&rsquo;une partie de l&rsquo;ancien corps est pr\u00e9sent en profondeur dans le manteau de notre plan\u00e8te. Les scientifiques ont \u00e9tudi\u00e9 le rapport isotopique des gaz rares pr\u00e9sents dans les profondeurs du manteau de la Terre en comparaison au rapport isotopique du gaz trouv\u00e9 pr\u00e8s de la surface. Ils ont constat\u00e9 que la proportion de 3 He (h\u00e9lium) pour 22 Ne (n\u00e9on) \u00e0 partir des couches de surface du manteau est beaucoup plus \u00e9lev\u00e9e que les couches plus profondes.<\/p><div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"2\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n\n<p style=\"text-align: justify;\">L&rsquo;analyse de la proportion de 129 et 130-x\u00e9non confirme \u00e9galement l&rsquo;hypoth\u00e8se sugg\u00e9r\u00e9e par les chercheurs. Le mat\u00e9riau a \u00e9t\u00e9 pris \u00e0 la surface du manteau profond a un ratio plus faible que le mat\u00e9riau qui est situ\u00e9 pr\u00e8s de la surface. Depuis le x\u00e9non 129 est produit par la d\u00e9sint\u00e9gration radioactive de l&rsquo;iode 129, ces isotopes indiquent que le vieux manteau a \u00e9t\u00e9 form\u00e9 au cours des 100 premiers millions d&rsquo;ann\u00e9es de l&rsquo;\u00e9volution de la Terre.<\/p>\n<p style=\"text-align: justify;\">Comme l&rsquo;a expliqu\u00e9 le professeur Mukhopadhyay: \u00ab\u00a0La g\u00e9ochimie indique qu&rsquo;il existe des diff\u00e9rences entre les proportions d&rsquo;isotopes de gaz rares dans les diff\u00e9rentes parties de la Terre, et ils ont besoin d&rsquo;\u00eatre expliqu\u00e9. L&rsquo;id\u00e9e qu&rsquo;une collision colossale de la Terre avec un autre corps c\u00e9leste est le plus grand \u00e9v\u00e9nement de l&rsquo;histoire g\u00e9ologique de notre plan\u00e8te, et cela n&rsquo;a pas compl\u00e8tement \u00e9t\u00e9 fondu et la terre enti\u00e8re homog\u00e9n\u00e9is\u00e9e remet en question certaines de nos id\u00e9es sur la formation des plan\u00e8tes et les \u00e9nergies des impacts g\u00e9ants. Si la th\u00e9orie est av\u00e9r\u00e9e correcte, alors nous pouvons voir les anciens \u00e9chos de la Terre, \u00e0 savoir l&rsquo;\u00e9poque d&rsquo;avant la grande collision \u00ab\u00a0.<\/p>\n<p style=\"text-align: justify;\">Traduction de <a href=\"http:\/\/www.laterredufutur.com\/accueil\/\">la Terre du Futur<\/a><\/p>\n<p>source : <a href=\"http:\/\/climatologiageografica.com.br\/\" target=\"_blank\">http:\/\/climatologiageografica.com.br\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"8925\">(2683)<\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Th\u00e9ia (ou parfois Orph\u00e9e) est un objet hypoth\u00e9tique du Syst\u00e8me solaire, suppos\u00e9 avoir exist\u00e9 par le pass\u00e9. Selon l&rsquo;hypoth\u00e8se dominante,&#8230;<\/p>\n","protected":false},"author":1,"featured_media":8926,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[33,22,19],"tags":[2312,430,2750,233,703,4926,122,4924,579,121,75,4923,684,4925],"class_list":["post-8925","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-archeologie","category-espace","category-seismes-et-volcans","tag-collision","tag-etude","tag-geologique","tag-histoire","tag-impact","tag-isothope","tag-lune","tag-milliards-dannees","tag-objet","tag-planete","tag-terre","tag-theia","tag-video","tag-xenon","wpcat-33-id","wpcat-22-id","wpcat-19-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/theia-impact-terre.jpg?fit=800%2C453&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-2jX","jetpack-related-posts":[{"id":27465,"url":"https:\/\/www.laterredufutur.com\/accueil\/theia-et-la-terre-etaient-voisines-selon-de-nouvelles-recherches\/","url_meta":{"origin":8925,"position":0},"title":"Th\u00e9ia et la Terre \u00e9taient voisines, selon de nouvelles recherches","author":"Admin","date":"22 novembre 2025","format":false,"excerpt":"Il y a environ 4,5 milliards d'ann\u00e9es, l'\u00e9v\u00e9nement le plus marquant de l'histoire de la Terre s'est produit : un \u00e9norme corps c\u00e9leste nomm\u00e9 Th\u00e9ia est entr\u00e9 en collision avec la jeune Terre. Les circonstances exactes de la collision et ses cons\u00e9quences restent encore mal connues. Ce qui est certain,\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/theia-impact-terre.jpg?fit=800%2C453&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/theia-impact-terre.jpg?fit=800%2C453&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/theia-impact-terre.jpg?fit=800%2C453&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/10\/theia-impact-terre.jpg?fit=800%2C453&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":20664,"url":"https:\/\/www.laterredufutur.com\/accueil\/un-fragment-de-planete-qui-a-frappe-la-terre-pourrait-etre-enterre-a-linterieur-de-la-lune\/","url_meta":{"origin":8925,"position":1},"title":"Un fragment de plan\u00e8te qui a frapp\u00e9 la Terre pourrait \u00eatre enterr\u00e9 \u00e0 l&rsquo;int\u00e9rieur de la Lune","author":"Admin","date":"7 mai 2020","format":false,"excerpt":"Un objet de la taille de Mars a-t-il percut\u00e9 la Terre il y a des milliards d'ann\u00e9es? D'o\u00f9 vient la Lune et comment s'est-elle form\u00e9e? C'est une question que les scientifiques se grattent la t\u00eate depuis des d\u00e9cennies. Selon \u00abl'hypoth\u00e8se de l'impact g\u00e9ant \u00bb, largement accept\u00e9e, la Lune s'est form\u00e9e\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/03\/theia-impact-terre-formation-lune.jpg?fit=1000%2C526&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/03\/theia-impact-terre-formation-lune.jpg?fit=1000%2C526&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/03\/theia-impact-terre-formation-lune.jpg?fit=1000%2C526&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/03\/theia-impact-terre-formation-lune.jpg?fit=1000%2C526&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":22223,"url":"https:\/\/www.laterredufutur.com\/accueil\/de-vastes-fragments-dun-monde-extraterrestre-pourraient-etre-enterres-au-plus-profond-de-notre-terre\/","url_meta":{"origin":8925,"position":2},"title":"De vastes fragments d&rsquo;un monde extraterrestre pourraient \u00eatre enterr\u00e9s au plus profond de notre Terre","author":"Admin","date":"24 mars 2021","format":false,"excerpt":"Elles sont parmi les plus grandes et les plus \u00e9tranges de toutes les structures sur Terre : d'\u00e9normes et myst\u00e9rieuses \"gouttes\" de roches denses se cachent profond\u00e9ment dans les parties les plus basses du manteau de notre plan\u00e8te. Il y a deux de ces masses gigantesques - appel\u00e9es \"les grandes\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/03\/structures-manteau-terre.jpg?fit=1024%2C415&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/03\/structures-manteau-terre.jpg?fit=1024%2C415&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/03\/structures-manteau-terre.jpg?fit=1024%2C415&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/03\/structures-manteau-terre.jpg?fit=1024%2C415&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":4850,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-mystere-de-la-formation-de-la-lune-en-passe-detre-elucide\/","url_meta":{"origin":8925,"position":3},"title":"Le myst\u00e8re de la formation de la Lune en passe d&rsquo;\u00eatre \u00e9lucid\u00e9","author":"Admin","date":"27 avril 2009","format":false,"excerpt":"9 avril 2009 : Les sondes jumelles STEREO de la NASA sont entr\u00e9es dans une r\u00e9gion myst\u00e9rieuse de l'espace \u00e0 la recherche des restes d'une ancienne plan\u00e8te qui, autrefois fut en orbite autour du Soleil, non loin de la Terre. Si elles trouvent quelque chose, cela pourrait r\u00e9soudre un casse-t\u00eate\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":11033,"url":"https:\/\/www.laterredufutur.com\/accueil\/et-si-la-terre-etait-a-lorigine-deux-planetes-distinctes\/","url_meta":{"origin":8925,"position":4},"title":"Et si la Terre \u00e9tait \u00e0 l\u2019origine deux plan\u00e8tes distinctes ?","author":"Admin","date":"22 f\u00e9vrier 2016","format":false,"excerpt":"Vous connaissez tous la th\u00e9orie de base expliquant comment notre Lune se serait form\u00e9. Selon les scientifiques les plus \u00e9rudits, il y a 4,5 milliards d\u2019ann\u00e9es, un embryon de la plan\u00e8te Th\u00e9ia aurait frapp\u00e9 la Terre partiellement en la fr\u00f4lant et de ces d\u00e9bris serait n\u00e9e la Lune. On appelle\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/02\/Collision_terre.jpg?fit=1024%2C415&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/02\/Collision_terre.jpg?fit=1024%2C415&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/02\/Collision_terre.jpg?fit=1024%2C415&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/02\/Collision_terre.jpg?fit=1024%2C415&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":18377,"url":"https:\/\/www.laterredufutur.com\/accueil\/une-roche-dorigine-terrestre-retrouvee-sur-le-lune\/","url_meta":{"origin":8925,"position":5},"title":"Une roche d\u2019origine terrestre retrouv\u00e9e sur le lune","author":"Admin","date":"11 f\u00e9vrier 2019","format":false,"excerpt":"Une analyse de roche lunaire, arriv\u00e9e sur Terre dans les bagages des astronautes de la mission Apollo 14, a r\u00e9v\u00e9l\u00e9 que cette roche serait en fait d\u2019origine terrestre ! Les scientifiques de la mission Apollo 14 ne sont pas revenus les mains vides de leur exploration lunaire. Ils ont pr\u00e9lev\u00e9\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/03\/astronaute-lune-1969.jpg?fit=700%2C542&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/03\/astronaute-lune-1969.jpg?fit=700%2C542&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/03\/astronaute-lune-1969.jpg?fit=700%2C542&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/03\/astronaute-lune-1969.jpg?fit=700%2C542&ssl=1&resize=700%2C400 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/8925","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/comments?post=8925"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/8925\/revisions"}],"predecessor-version":[{"id":8927,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/8925\/revisions\/8927"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/8926"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=8925"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=8925"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=8925"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}