{"id":2452,"date":"2017-07-10T19:24:40","date_gmt":"2017-07-10T19:24:40","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/?p=2452"},"modified":"2017-07-11T06:15:24","modified_gmt":"2017-07-11T06:15:24","slug":"cratere-dimpact-de-vredefort","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2017\/07\/10\/cratere-dimpact-de-vredefort\/","title":{"rendered":"Le crat\u00e8re d\u2019impact de Vredefort"},"content":{"rendered":"

Le crat\u00e8re d\u2019impact de Vredefort en Afrique du Sud, de 300 km diam\u00e8tre, est le plus grand connu sur Terre. On peut admirer sa br\u00e8che d\u2019impact (impactite) en une superbe dalle polie, \u00e0 l\u2019entr\u00e9e de l\u2019Uranoscope de Gretz-Armainvilliers (voir mon blog du 7\/7\/2017).<\/p>\n

\"\"Jacques-Marie Bardintzeff, volcanologue, \u00e0 c\u00f4t\u00e9 d\u2019une dalle polie de l\u2019impactite de Vredefort, devant l\u2019Uranoscope de Gretz-Armainvilliers. Trois autres dalles similaires sont pr\u00e9sent\u00e9es : au Mus\u00e9um d\u2019Histoire Naturelle de Paris (Jardin des Plantes), \u00e0 Rochechouart (Haute-Vienne) et dans le Gers (\u00a9 J.M. Bardintzeff, merci \u00e0 Val\u00e9rie Godard).<\/p>\n

Ce tr\u00e8s vieux crat\u00e8re r\u00e9sulte de l\u2018impact d\u2019une m\u00e9t\u00e9orite de 10 \u00e0 20 km de diam\u00e8tre, il y a 2 milliards d\u2019ann\u00e9es. Il est inscrit sur la liste du patrimoine mondial de l’UNESCO.<\/p>\n

\"\"<\/p>\n

Val\u00e9rie Godard, litholamelleuse, Jacques-Marie Bardintzeff, volcanologue, et l\u2019impactite de Vredefort, devant l\u2019Uranoscope lors de la journ\u00e9e GEOPS du 6 juillet 2017 (\u00a9 V. Godard).<\/p>\n","protected":false},"excerpt":{"rendered":"

Le crat\u00e8re d\u2019impact de Vredefort en Afrique du Sud, de 300 km diam\u00e8tre, est le plus grand connu sur Terre. On peut admirer sa br\u00e8che d\u2019impact (impactite) en une superbe dalle polie, \u00e0 l\u2019entr\u00e9e de l\u2019Uranoscope de Gretz-Armainvilliers (voir mon blog du 7\/7\/2017). Jacques-Marie Bardintzeff, volcanologue, \u00e0 c\u00f4t\u00e9 d\u2019une dalle polie de l\u2019impactite de Vredefort, … Continuer la lecture de Le crat\u00e8re d\u2019impact de Vredefort<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[6,8],"tags":[721,21,901,902,897,905,903,906,389,900,13,904],"class_list":["post-2452","post","type-post","status-publish","format-standard","hentry","category-actualites","category-voyages","tag-afrique-du-sud","tag-bardintzeff","tag-breche-dimpact","tag-cratere-dimpact","tag-geops","tag-godard","tag-impactite","tag-litholamelleuse","tag-meteorite","tag-uranoscope","tag-volcanologue","tag-vredefort"],"yoast_head":"\nLe crat\u00e8re d\u2019impact de Vredefort, par Jacques-Marie Bardintzeff<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2017\/07\/10\/cratere-dimpact-de-vredefort\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Le crat\u00e8re d\u2019impact de Vredefort, par Jacques-Marie Bardintzeff\" \/>\n<meta property=\"og:description\" content=\"Le crat\u00e8re d\u2019impact de Vredefort en Afrique du Sud, de 300 km diam\u00e8tre, est le plus grand connu sur Terre. On peut admirer sa br\u00e8che d\u2019impact (impactite) en une superbe dalle polie, \u00e0 l\u2019entr\u00e9e de l\u2019Uranoscope de Gretz-Armainvilliers (voir mon blog du 7\/7\/2017). Jacques-Marie Bardintzeff, volcanologue, \u00e0 c\u00f4t\u00e9 d\u2019une dalle polie de l\u2019impactite de Vredefort, … Continuer la lecture de Le crat\u00e8re d\u2019impact de Vredefort →\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2017\/07\/10\/cratere-dimpact-de-vredefort\/\" \/>\n<meta property=\"og:site_name\" content=\"VOLCANMANIA : le blog de Jacques-Marie BARDINTZEFF, volcanologue\" \/>\n<meta property=\"article:published_time\" content=\"2017-07-10T19:24:40+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2017-07-11T06:15:24+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2017\/07\/Bardintzeff.SAM_0042.Vredefort.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1355\" \/>\n\t<meta property=\"og:image:height\" content=\"1417\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"jmbardintzeff\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"jmbardintzeff\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2017\/07\/10\/cratere-dimpact-de-vredefort\/\",\"url\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2017\/07\/10\/cratere-dimpact-de-vredefort\/\",\"name\":\"Le crat\u00e8re d\u2019impact de Vredefort, par Jacques-Marie Bardintzeff\",\"isPartOf\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2017\/07\/10\/cratere-dimpact-de-vredefort\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2017\/07\/10\/cratere-dimpact-de-vredefort\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2017\/07\/Bardintzeff.SAM_0042.Vredefort-430x450.jpg\",\"datePublished\":\"2017-07-10T19:24:40+00:00\",\"dateModified\":\"2017-07-11T06:15:24+00:00\",\"author\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/#\/schema\/person\/974e1e0324e3e06f08253784e8eca61e\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2017\/07\/10\/cratere-dimpact-de-vredefort\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2017\/07\/10\/cratere-dimpact-de-vredefort\/#primaryimage\",\"url\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2017\/07\/Bardintzeff.SAM_0042.Vredefort.jpg\",\"contentUrl\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2017\/07\/Bardintzeff.SAM_0042.Vredefort.jpg\",\"width\":1355,\"height\":1417},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/#website\",\"url\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/\",\"name\":\"VOLCANMANIA : le blog de Jacques-Marie BARDINTZEFF, volcanologue\",\"description\":\"Les volcans ? 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