{"id":18274,"date":"2019-02-06T08:40:03","date_gmt":"2019-02-06T07:40:03","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=18274"},"modified":"2019-02-06T08:40:03","modified_gmt":"2019-02-06T07:40:03","slug":"des-chercheurs-decouvrent-un-age-de-glace-dans-le-desert-africain","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/des-chercheurs-decouvrent-un-age-de-glace-dans-le-desert-africain\/","title":{"rendered":"Des chercheurs d\u00e9couvrent un \u00e2ge de glace dans le d\u00e9sert africain"},"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>Il y a environ 300 millions d&rsquo;ann\u00e9es, lorsque l&rsquo;Afrique australe \u00e9tait accoler \u00e0 l&rsquo;Am\u00e9rique du Sud, cette r\u00e9gion d\u00e9sormais aride \u00e9tait recouverte d&rsquo;une vaste \u00e9tendue de glaciers.<\/p>\n<p>Vous ne pouviez imaginer qu&rsquo;aujourd&rsquo;hui, dans le d\u00e9sert avec des temp\u00e9ratures \u00ab\u00a0volcaniques\u00a0\u00bb et s\u00e8ches de la r\u00e9gion de Twyfelfontein au nord de la Namibie, des glaciers ont pu exister dans ce lointain pass\u00e9. Mais au cours de ses 4,5 milliards d&rsquo;ann\u00e9es d&rsquo;histoire, notre plan\u00e8te a pris l&rsquo;habitude de se r\u00e9inventer.<\/p>\n<p>Si nous enlevons les couches g\u00e9ologiques, nous pouvons parfois avoir un aper\u00e7u de ce que fut cette r\u00e9gion. Tout ce que vous avez \u00e0 faire, c&rsquo;est d&rsquo;essayer.<\/p>\n<p>Les g\u00e9ologues Graham Andrews et Sarah Brown sont parmi les premiers \u00e0 le faire en Namibie, et leurs derni\u00e8res recherches ont conduit \u00e0 une d\u00e9couverte inattendue.<\/p>\n<p>En fait, cette r\u00e9gion abritait autrefois d&rsquo;importants glaciers &#8211; les couloirs qui orientent le flux d\u2019un glacier &#8211; et ceux-ci \u00e9taient si impressionnant qu\u2019ils auraient pu rivaliser avec ceux que nous observons de nos jours dans l\u2019Antarctique moderne.<\/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\/KlDO0C8r_ws?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>En explorant ce pays d\u00e9sertique lors d&rsquo;une visite sur le terrain, ces deux g\u00e9ologues de l&rsquo;Universit\u00e9 de Virginie occidentale ont remarqu\u00e9 certaines particularit\u00e9s de reliefs le long de collines escarp\u00e9es dans la r\u00e9gion, commun\u00e9ment appel\u00e9es&nbsp;drumlins de&nbsp;Namibie.<\/p>\n<p>\u00ab\u00a0Nous avons rapidement compris ce que nous recherchions car nous avons tous deux grandi dans des r\u00e9gions du monde proche des glaciers, moi en Irlande du Nord et Sarah dans le nord de l&rsquo;Illinois\u00a0\u00bb, a&nbsp;&nbsp;d\u00e9clar\u00e9&nbsp;&nbsp;Andrews, dont l&rsquo;expertise est bas\u00e9e sur les provinces volcaniques du nord. La Cordill\u00e8re am\u00e9ricaine.<\/p>\n<p>Mais m\u00eame si les origines de ce paysage \u00e9tranger semblaient claires \u00e0 Andrews, il fut surpris de constater que le sujet n&rsquo;avait jamais fait l&rsquo;objet de recherches.<\/p>\n<p>&nbsp;<img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"18278\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/des-chercheurs-decouvrent-un-age-de-glace-dans-le-desert-africain\/drumlins-namibie\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/drumlins-namibie.jpg?fit=616%2C347&amp;ssl=1\" data-orig-size=\"616,347\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"drumlins-namibie\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/drumlins-namibie.jpg?fit=616%2C347&amp;ssl=1\" class=\"alignnone size-full wp-image-18278\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/drumlins-namibie.jpg?resize=616%2C347&#038;ssl=1\" alt=\"\" width=\"616\" height=\"347\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/drumlins-namibie.jpg?w=616&amp;ssl=1 616w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/drumlins-namibie.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/drumlins-namibie.jpg?resize=580%2C326&amp;ssl=1 580w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/drumlins-namibie.jpg?resize=174%2C98&amp;ssl=1 174w\" sizes=\"auto, (max-width: 616px) 100vw, 616px\" \/><\/p>\n<p>\u00ab\u00a0Les gens savaient \u00e9videmment qu&rsquo;une partie du monde avait \u00e9t\u00e9 recouverte de glace \u00e0 un moment donn\u00e9, mais personne n&rsquo;avait jamais rien dit sur la formation des drumlins ni m\u00eame sur leur pr\u00e9sence\u00a0\u00bb,&nbsp;&nbsp;explique&nbsp;&nbsp;Andrews.<\/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>En analysant la forme et la taille de ce paysage unique \u00e0 l&rsquo;aide d&rsquo;informations de Google Earth, Andrews et son \u00e9quipe ont tent\u00e9 de d\u00e9terminer si les drumlins auraient pu \u00eatre sculpt\u00e9s \u00e0 la suite de la disparition croissante et d\u00e9croissante d&rsquo;un glacier devenu obsol\u00e8te.<\/p>\n<p>En examinant leurs r\u00e9sultats, les chercheurs ont d\u00e9couvert de longs grands sillons dans les roches de la r\u00e9gion.&nbsp;Les preuves \u00e9taient claires : cela devait \u00eatre d\u00fb \u00e0 d&rsquo;anciennes formes de glace qui se d\u00e9pla\u00e7aient tr\u00e8s rapidement &#8211; suffisamment rapidement pour que la glace puisse se frayer un chemin dans le paysage volcanique (&nbsp;environ 800 m\u00e8tres par an&nbsp;).<\/p>\n<p>Les r\u00e9sultats repr\u00e9sentent la toute premi\u00e8re preuve d&rsquo;un flux de glace massif, responsable du drainage de la calotte glaciaire qui recouvrait l&rsquo;Afrique australe \u00e0 la fin du Pal\u00e9ozo\u00efque.<\/p>\n<p>En se retournant et en tournant sur environ deux cents kilom\u00e8tres, ce ruisseau aurait coul\u00e9 dans une direction nord-ouest, vidant la calotte glaciaire de la r\u00e9gion dans un environnement marin peu profond du Br\u00e9sil d&rsquo;aujourd&rsquo;hui.<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"18275\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/des-chercheurs-decouvrent-un-age-de-glace-dans-le-desert-africain\/reconstruction-du-gondwana-durant-laire-paleozoic-de-310-millions-dannees\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/reconstruction-du-Gondwana-durant-laire-Paleozoic-de-310-millions-dannees.png?fit=850%2C891&amp;ssl=1\" data-orig-size=\"850,891\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"reconstruction-du-Gondwana-durant-laire-Paleozoic-de-310-millions-dannees\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/reconstruction-du-Gondwana-durant-laire-Paleozoic-de-310-millions-dannees.png?fit=763%2C800&amp;ssl=1\" class=\"alignnone size-full wp-image-18275\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/reconstruction-du-Gondwana-durant-laire-Paleozoic-de-310-millions-dannees.png?resize=850%2C891&#038;ssl=1\" alt=\"\" width=\"850\" height=\"891\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/reconstruction-du-Gondwana-durant-laire-Paleozoic-de-310-millions-dannees.png?w=850&amp;ssl=1 850w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/reconstruction-du-Gondwana-durant-laire-Paleozoic-de-310-millions-dannees.png?resize=286%2C300&amp;ssl=1 286w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/reconstruction-du-Gondwana-durant-laire-Paleozoic-de-310-millions-dannees.png?resize=768%2C805&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/reconstruction-du-Gondwana-durant-laire-Paleozoic-de-310-millions-dannees.png?resize=763%2C800&amp;ssl=1 763w\" sizes=\"auto, (max-width: 850px) 100vw, 850px\" \/><\/p>\n<p>Les recherches confirment non seulement un lien entre ces deux continents du sud, mais \u00e9galement l\u2019emplacement de l\u2019Afrique australe il y a 300 millions d\u2019ann\u00e9es, recouverte par l\u2019Am\u00e9rique du Sud situ\u00e9e juste au-dessus du p\u00f4le Sud.<\/p>\n<p>\u00ab\u00a0Ce travail est tr\u00e8s important car peu de choses ont \u00e9t\u00e9 publi\u00e9es sur ces caract\u00e9ristiques glaciaires en Namibie\u00a0\u00bb, a&nbsp;d\u00e9clar\u00e9 le&nbsp;&nbsp;co-auteur, Andy McGrady, un autre g\u00e9ologue de l&rsquo;Universit\u00e9 de Virginie occidentale.<\/p>\n<p>\u00ab\u00a0Il est int\u00e9ressant de penser qu&rsquo;il s&rsquo;agit d&rsquo;un travail de pionnier en un sens. Il s&rsquo;agit de l&rsquo;un des premiers articles \u00e0 couvrir les caract\u00e9ristiques de ce monde glaciaire et \u00e0 donner un aper\u00e7u de la fa\u00e7on dont elles ont \u00e9t\u00e9 cr\u00e9\u00e9es.\u00a0\u00bb<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"18281\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/des-chercheurs-decouvrent-un-age-de-glace-dans-le-desert-africain\/drumlins-namibie-3\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/drumlins-namibie-2.jpg?fit=800%2C1805&amp;ssl=1\" data-orig-size=\"800,1805\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"drumlins-namibie\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/drumlins-namibie-2.jpg?fit=355%2C800&amp;ssl=1\" class=\"alignnone size-full wp-image-18281\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/drumlins-namibie-2.jpg?resize=800%2C1805&#038;ssl=1\" alt=\"\" width=\"800\" height=\"1805\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/drumlins-namibie-2.jpg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/drumlins-namibie-2.jpg?resize=133%2C300&amp;ssl=1 133w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/drumlins-namibie-2.jpg?resize=768%2C1733&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/drumlins-namibie-2.jpg?resize=355%2C800&amp;ssl=1 355w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>Adaptation <a href=\"https:\/\/www.laterredufutur.com\/accueil\/\">La Terre du Futur<\/a><\/p>\n<p>sources :&nbsp;<a href=\"https:\/\/www.sciencealert.com\/a-desert-in-africa-is-telling-us-secrets-about-the-gondwana-ice-age\" target=\"_blank\" rel=\"noopener\">https:\/\/www.sciencealert.com<\/a> \/ <a href=\"https:\/\/journals.plos.org\/plosone\/article?id=10.1371\/journal.pone.0210673\" target=\"_blank\" rel=\"noopener\">https:\/\/journals.plos.org\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"18274\">(669)<\/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>Il y a environ 300 millions d&rsquo;ann\u00e9es, lorsque l&rsquo;Afrique australe \u00e9tait accoler \u00e0 l&rsquo;Am\u00e9rique du Sud, cette r\u00e9gion d\u00e9sormais aride&#8230;<\/p>\n","protected":false},"author":1,"featured_media":18280,"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_post_was_ever_published":false,"_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":"Des chercheurs d\u00e9couvrent un \u00e2ge de glace dans le d\u00e9sert africain @laterredufutur.com","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}},"categories":[33],"tags":[196,3700,1252,332,1254,1325],"class_list":["post-18274","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-archeologie","tag-afrique","tag-amerique-du-sud","tag-antarctique","tag-desert","tag-glacier","tag-namibie","wpcat-33-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/02\/drumlins-namibie-1.jpg?fit=800%2C480&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-4KK","jetpack-related-posts":[{"id":1022,"url":"https:\/\/www.laterredufutur.com\/accueil\/namibie-tresor-aquatique-origine-et-climat-passe\/","url_meta":{"origin":18274,"position":0},"title":"Namibie, tr\u00e9sor aquatique, origine et climat pass\u00e9","author":"Admin","date":"21 ao\u00fbt 2012","format":false,"excerpt":"Une nappe phr\u00e9atique de cinq millions de m\u00e8tres cubes d'eau a \u00e9t\u00e9 localis\u00e9e. De quoi alimenter le pays pendant 400 ans. La d\u00e9couverte r\u00e9cente d'une r\u00e9serve d'eau datant de l'\u00e2ge de pierre pourrait changer la vie dans le nord de la Namibie en apportant \u00e0 cette r\u00e9gion d\u00e9sertique de quoi\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"namibie entre hier et aujourd'hui","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/wordpress\/wp-content\/uploads\/2012\/08\/namibie-hier-aujourdhui.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":27730,"url":"https:\/\/www.laterredufutur.com\/accueil\/comment-des-deserts-peuvent-ils-se-former-a-proximite-des-oceans\/","url_meta":{"origin":18274,"position":1},"title":"Comment des d\u00e9serts peuvent-ils se former \u00e0 proximit\u00e9 des oc\u00e9ans ?","author":"Admin","date":"25 f\u00e9vrier 2026","format":false,"excerpt":"Les d\u00e9serts sont r\u00e9put\u00e9s pour \u00eatre secs, alors pourquoi tant d'entre eux bordent-ils les oc\u00e9ans ? Lorsque vous imaginez un d\u00e9sert, vous pensez probablement \u00e0 un vaste paysage d\u00e9sertique, loin de toute source d'eau. Mais \u00e9tonnamment, certains des endroits les plus arides de la plan\u00e8te se trouvent juste \u00e0 c\u00f4t\u00e9\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\/2026\/02\/desert-du-namib-et-ocean.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\/2026\/02\/desert-du-namib-et-ocean.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/02\/desert-du-namib-et-ocean.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/02\/desert-du-namib-et-ocean.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/02\/desert-du-namib-et-ocean.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":20000,"url":"https:\/\/www.laterredufutur.com\/accueil\/nous-avons-decouvert-le-lieu-de-naissance-de-lhumanite\/","url_meta":{"origin":18274,"position":2},"title":"Nous avons d\u00e9couvert le lieu de naissance de l&rsquo;humanit\u00e9","author":"Admin","date":"30 octobre 2019","format":false,"excerpt":"La premi\u00e8re \u00abpatrie\u00bb de l'homme moderne vient d\u2019\u00eatre localis\u00e9e. Elle se situe dans une r\u00e9gion d'Afrique australe, dans le nord de l'actuel Botswana, o\u00f9 notre anc\u00eatre commun a v\u00e9cu il y a 200.000 ans avant de migrer 70.000 ans plus tard, r\u00e9v\u00e8le une \u00e9tude publi\u00e9e ce lundi dans la revue\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\/2019\/10\/origine-de-lhomme-bostwana-Makgadikgadi.jpg?fit=1166%2C700&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/10\/origine-de-lhomme-bostwana-Makgadikgadi.jpg?fit=1166%2C700&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/10\/origine-de-lhomme-bostwana-Makgadikgadi.jpg?fit=1166%2C700&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/10\/origine-de-lhomme-bostwana-Makgadikgadi.jpg?fit=1166%2C700&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/10\/origine-de-lhomme-bostwana-Makgadikgadi.jpg?fit=1166%2C700&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":26812,"url":"https:\/\/www.laterredufutur.com\/accueil\/des-eruptions-magmatiques-massives-pourraient-avoir-dechire-lafrique-et-lamerique-du-sud\/","url_meta":{"origin":18274,"position":3},"title":"Des \u00e9ruptions magmatiques massives pourraient avoir d\u00e9chir\u00e9 l&rsquo;Afrique et l&rsquo;Am\u00e9rique du Sud","author":"Admin","date":"8 avril 2025","format":false,"excerpt":"D'\u00e9normes coul\u00e9es de magma ont accompagn\u00e9 la s\u00e9paration entre l'Am\u00e9rique du Sud et l'Afrique il y a 135 millions d'ann\u00e9es. Selon de nouvelles recherches, la s\u00e9paration entre l'Am\u00e9rique du Sud et l'Afrique, il y a 135 millions d'ann\u00e9es, a \u00e9t\u00e9 une affaire br\u00fblante. La rupture continentale a rejet\u00e9 plus de\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\/2025\/04\/separation-afrique-et-amerique-du-sud.jpg?fit=1024%2C1024&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/04\/separation-afrique-et-amerique-du-sud.jpg?fit=1024%2C1024&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/04\/separation-afrique-et-amerique-du-sud.jpg?fit=1024%2C1024&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2025\/04\/separation-afrique-et-amerique-du-sud.jpg?fit=1024%2C1024&ssl=1&resize=700%2C400 2x"},"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":18274,"position":4},"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":25255,"url":"https:\/\/www.laterredufutur.com\/accueil\/une-etude-revele-pourquoi-et-quand-le-desert-du-sahara-est-devenu-vert\/","url_meta":{"origin":18274,"position":5},"title":"Une \u00e9tude r\u00e9v\u00e8le pourquoi et quand le d\u00e9sert du Sahara est devenu vert","author":"Admin","date":"17 octobre 2023","format":false,"excerpt":"Notre plan\u00e8te a beaucoup \u00e9volu\u00e9 au cours de milliards d'ann\u00e9es, de l'emplacement des continents \u00e0 la composition de l'atmosph\u00e8re. Une nouvelle \u00e9tude examine en d\u00e9tail l'histoire du d\u00e9sert du Sahara, qui n'a pas toujours \u00e9t\u00e9 une r\u00e9gion sauvage et aride. Des chercheurs finlandais et britanniques ont reconstitu\u00e9 les transformations p\u00e9riodiques\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\/09\/desert-du-sahara.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\/2023\/09\/desert-du-sahara.jpg?fit=1024%2C415&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/09\/desert-du-sahara.jpg?fit=1024%2C415&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/09\/desert-du-sahara.jpg?fit=1024%2C415&ssl=1&resize=700%2C400 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/18274","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=18274"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/18274\/revisions"}],"predecessor-version":[{"id":18282,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/18274\/revisions\/18282"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/18280"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=18274"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=18274"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=18274"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}