{"id":20596,"date":"2020-04-07T17:00:41","date_gmt":"2020-04-07T16:00:41","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=20596"},"modified":"2020-03-19T11:35:03","modified_gmt":"2020-03-19T10:35:03","slug":"quand-la-terre-notre-monde-etait-waterworld","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/quand-la-terre-notre-monde-etait-waterworld\/","title":{"rendered":"Quand la Terre, notre monde \u00e9tait Waterworld"},"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>Les scientifiques de l&rsquo;\u00c9tat de l&rsquo;Iowa et de l&rsquo;Universit\u00e9 du Colorado disent avoir trouv\u00e9 des preuves convaincantes que la Terre d&rsquo;il y a 3,2 milliards d&rsquo;ann\u00e9es \u00e9tait une \u00e9tendue d&rsquo;eau ininterrompue, sans un seul continent. Oui c&rsquo;\u00e9tait : \u00ab Waterworld \u00bb.<\/p>\n<p>La recherche, publi\u00e9e d\u00e9but mars 2020 dans la revue Nature Geoscience, a examin\u00e9 d&rsquo;anciens \u00e9chantillons de fond marin trouv\u00e9s en Australie et a trouv\u00e9 des indices chimiques que la Terre \u00e9tait une plan\u00e8te compl\u00e8tement bleue &#8211; une d\u00e9couverte, selon les scientifiques, qui pourrait avoir de profondes implications dans l&rsquo;histoire de la vie elle-m\u00eame.<\/p>\n<p>La d\u00e9couverte principale, le g\u00e9oscientifique de l&rsquo;\u00c9tat de l&rsquo;Iowa Benjamin Johnson a d\u00e9clar\u00e9 \u00e0 Live Science, qu&rsquo;\u00e0 l&rsquo;\u00e9poque o\u00f9 la Terre \u00e9tait jeune, 3,2 milliards d&rsquo;ann\u00e9es, son oc\u00e9an nageait avec l&rsquo;isotope oxyg\u00e8ne-18.<\/p>\n<p>De nos jours, a-t-il dit, les masses continentales aspirent une grande partie de l&rsquo;oxyg\u00e8ne-18 de l&rsquo;eau. Et dans cet ancien \u00e9chantillon, il en a observ\u00e9 une abondance. Ainsi, une abondance d&rsquo;oxyg\u00e8ne-18 dans l&rsquo;oc\u00e9an ancien, selon la th\u00e9orie, implique un sc\u00e9nario \u00ab Waterworld \u00bb.<\/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>Curieusement, dit Johnson, cette d\u00e9couverte pourrait changer les param\u00e8tres autour de l&rsquo;origine de la vie sur Terre.<\/p>\n<p>\u00ab\u00a0Il existe deux grands camps pour l&rsquo;origine de la vie : les \u00e9vents hydrothermaux et les \u00e9tangs sur terre\u00a0\u00bb, a d\u00e9clar\u00e9 Johnson \u00e0 Live Science . \u00ab\u00a0Si notre travail est juste, cela signifie que le nombre d&rsquo;environnements sur terre pour que la vie \u00e9merge et \u00e9volue \u00e9tait vraiment infime ou absent.\u00a0\u00bb<\/p>\n<p>Des continents sont apparus plus tard, alors que la tectonique des plaques poussait d&rsquo;\u00e9normes masses terrestres rocheuses vers le haut pour percer la surface oc\u00e9anique.<\/p>\n<p>Adaptation <a href=\"https:\/\/www.laterredufutur.com\/accueil\/\">Terra Projects<\/a><\/p>\n<p>sources : <a href=\"https:\/\/futurism.com\/the-byte\/scientists-ancient-earth-completely-covered-water\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/futurism.com\/<\/a> \/ <a href=\"https:\/\/www.livescience.com\/waterworld-earth.html\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.livescience.com\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"20596\">(472)<\/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>Les scientifiques de l&rsquo;\u00c9tat de l&rsquo;Iowa et de l&rsquo;Universit\u00e9 du Colorado disent avoir trouv\u00e9 des preuves convaincantes que la Terre&#8230;<\/p>\n","protected":false},"author":1,"featured_media":20597,"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":"Quand la #Terre, notre #monde \u00e9tait #Waterworld @laterredufutur.com Terra Projects","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":[18],"tags":[241,75,7371],"class_list":["post-20596","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-monde-futur","tag-ocean","tag-terre","tag-waterwolrd","wpcat-18-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/03\/planete-ocean-terre.jpg?fit=1280%2C914&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-5mc","jetpack-related-posts":[{"id":22532,"url":"https:\/\/www.laterredufutur.com\/accueil\/il-y-a-3-milliards-dannees-notre-monde-ressemblait-au-film-waterworld\/","url_meta":{"origin":20596,"position":0},"title":"Il y a 3 milliards d&rsquo;ann\u00e9es, notre monde ressemblait au film Waterworld","author":"Admin","date":"13 mai 2021","format":false,"excerpt":"Dans le film Waterworld, sorti en 2015, la Terre est totalement recouverte d'eau suite au r\u00e9chauffement climatique ayant caus\u00e9 la fonte des glaces. Ce monde marin n'est peut-\u00eatre pas si imaginaire que \u00e7a : selon une nouvelle \u00e9tude parue dans AGU Advances, la Terre \u00e9tait probablement en grande partie noy\u00e9e\u2026","rel":"","context":"Dans &quot;Monde Futur&quot;","block_context":{"text":"Monde Futur","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/monde-futur\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/05\/planete-terre-ocean.jpg?fit=1200%2C792&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/05\/planete-terre-ocean.jpg?fit=1200%2C792&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/05\/planete-terre-ocean.jpg?fit=1200%2C792&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/05\/planete-terre-ocean.jpg?fit=1200%2C792&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/05\/planete-terre-ocean.jpg?fit=1200%2C792&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":17178,"url":"https:\/\/www.laterredufutur.com\/accueil\/decouverte-dune-nouvelle-super-terre-tres-proche\/","url_meta":{"origin":20596,"position":1},"title":"D\u00e9couverte d&rsquo;une nouvelle \u00ab\u00a0super-terre\u00a0\u00bb tr\u00e8s proche","author":"Admin","date":"21 novembre 2018","format":false,"excerpt":"Il s'agirait d'un monde \"froid et obscur\", inhospitalier pour la vie telle que nous la connaissons. Une \"super-terre\" a \u00e9t\u00e9 d\u00e9couverte en orbite autour d'une \u00e9toile \"voisine\" du syst\u00e8me solaire : un monde \"froid et obscur\", inhospitalier pour la vie telle que nous la connaissons, selon une \u00e9tude publi\u00e9e mercredi\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\/2018\/11\/%C3%A9toile-de-Barnard-planete.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/11\/%C3%A9toile-de-Barnard-planete.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/11\/%C3%A9toile-de-Barnard-planete.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/11\/%C3%A9toile-de-Barnard-planete.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/11\/%C3%A9toile-de-Barnard-planete.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":25121,"url":"https:\/\/www.laterredufutur.com\/accueil\/des-traces-du-plus-vieux-glacier-du-monde-dateraient-de-29-milliards-dannees\/","url_meta":{"origin":20596,"position":2},"title":"Des traces du plus vieux glacier du monde dateraient de 2,9 milliards d&rsquo;ann\u00e9es","author":"Admin","date":"8 ao\u00fbt 2023","format":false,"excerpt":"Selon une nouvelle \u00e9tude, des traces du plus vieux glacier du monde se cachent pr\u00e8s des champs aurif\u00e8res d'Afrique du Sud. Les s\u00e9diments glaciaires remontent \u00e0 2,9 milliards d'ann\u00e9es, selon les chercheurs, qui ont publi\u00e9 leurs r\u00e9sultats le 13 juin dans la revue Geochemical Perspectives Letters. Pour leur \u00e9tude, les\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\/2023\/07\/glacier.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/07\/glacier.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/07\/glacier.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/07\/glacier.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/07\/glacier.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":25956,"url":"https:\/\/www.laterredufutur.com\/accueil\/selon-danciens-cristaux-leau-douce-est-apparue-sur-terre-il-y-a-4-milliards-dannees\/","url_meta":{"origin":20596,"position":3},"title":"Selon d&rsquo;anciens cristaux, l&rsquo;eau douce est apparue sur Terre il y a 4 milliards d&rsquo;ann\u00e9es","author":"Admin","date":"6 juin 2024","format":false,"excerpt":"Il est possible que la Terre ait eu de l'eau douce, et pas exclusivement sal\u00e9e, d\u00e8s 600 millions d'ann\u00e9es apr\u00e8s la formation de la plan\u00e8te, soit un simple clin d'\u0153il dans les temps g\u00e9ologiques. Les chercheurs ont analys\u00e9 les mol\u00e9cules d'oxyg\u00e8ne contenues dans des cristaux de zircon vieux de 4\u2026","rel":"","context":"Dans &quot;Divers&quot;","block_context":{"text":"Divers","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/divers\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/06\/eau-douce-Terre-des-centaines-de-millions-dannees-plus-tot.webp?fit=1030%2C580&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/06\/eau-douce-Terre-des-centaines-de-millions-dannees-plus-tot.webp?fit=1030%2C580&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/06\/eau-douce-Terre-des-centaines-de-millions-dannees-plus-tot.webp?fit=1030%2C580&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/06\/eau-douce-Terre-des-centaines-de-millions-dannees-plus-tot.webp?fit=1030%2C580&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":14894,"url":"https:\/\/www.laterredufutur.com\/accueil\/sil-y-avait-de-la-vie-sur-terre-il-y-a-4-milliards-dannees-alors-pourquoi-pas-sur-mars\/","url_meta":{"origin":20596,"position":4},"title":"S\u2019il y avait de la vie sur Terre, il y a 4 milliards d\u2019ann\u00e9es, alors pourquoi pas sur Mars?","author":"Admin","date":"21 mars 2017","format":false,"excerpt":"Des chercheurs ont d\u00e9couvert des microfossiles au nord-est du Qu\u00e9bec qu\u2019ils datent de quelque 4 milliards d\u2019ann\u00e9es, lorsque les conditions sur Terre et sur Mars n\u2019\u00e9taient pas si \u00e9loign\u00e9es\u2026 Pr\u00e9cisons-le tout de suite : on parle de micro-organismes, des fossiles dont la longueur n\u2019exc\u00e8de pas le demi-millim\u00e8tre et le diam\u00e8tre\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"Mars","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2012\/11\/mars9.jpg?fit=450%2C266&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":26405,"url":"https:\/\/www.laterredufutur.com\/accueil\/decouverte-de-traces-dun-littoral-dun-ancien-ocean-sur-mars\/","url_meta":{"origin":20596,"position":5},"title":"D\u00e9couverte de traces d&rsquo;un littoral d&rsquo;un ancien oc\u00e9an sur Mars","author":"Admin","date":"19 novembre 2024","format":false,"excerpt":"Des chercheurs chinois utilisant les donn\u00e9es du rover Zhurong ont affirm\u00e9 avoir identifi\u00e9 la trace du littoral de l\u2019ancien oc\u00e9an qui se serait trouv\u00e9 sur Mars il y a plus de trois milliards d\u2019ann\u00e9es. Mars n\u2019aurait pas toujours \u00e9t\u00e9 cette plan\u00e8te aride et inhospitali\u00e8re. C\u2019est en tout cas ce que\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\/06\/ocean-mars.jpg?fit=945%2C556&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/06\/ocean-mars.jpg?fit=945%2C556&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/06\/ocean-mars.jpg?fit=945%2C556&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/06\/ocean-mars.jpg?fit=945%2C556&ssl=1&resize=700%2C400 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/20596","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=20596"}],"version-history":[{"count":4,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/20596\/revisions"}],"predecessor-version":[{"id":20643,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/20596\/revisions\/20643"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/20597"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=20596"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=20596"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=20596"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}