{"id":541,"date":"2015-03-08T09:29:31","date_gmt":"2015-03-08T09:29:31","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/?p=541"},"modified":"2015-03-08T09:34:11","modified_gmt":"2015-03-08T09:34:11","slug":"image-de-volcan-devils-tower-usa","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2015\/03\/08\/image-de-volcan-devils-tower-usa\/","title":{"rendered":"Image de volcan : Devils Tower, USA"},"content":{"rendered":"<p>Devils Tower, litt\u00e9ralement \u00ab\u00a0la Tour du diable\u00a0\u00bb, est un \u00e9trange piton volcanique situ\u00e9 au nord-est de l\u2019\u00e9tat du Wyoming aux USA.<\/p>\n<p>Haute de 268 ou 386 m (selon le point de rep\u00e8re de base), elle culmine \u00e0 1558 m. C\u2019est le premier \u00ab\u00a0National Monument\u00a0\u00bb, cr\u00e9\u00e9 aux \u00c9tats-Unis, en 1906.<\/p>\n<p>Elle est constitu\u00e9e d\u2019une roche volcanique appel\u00e9e phonolite, d\u00e9bit\u00e9e en prismes (orgues volcaniques) quasi parfaits. S\u2019agit-il d\u2019une ancienne chemin\u00e9e volcanique\u00a0? Ou d\u2019un ancien r\u00e9servoir magmatique\u00a0? qui se serait solidifi\u00e9 en profondeur il y a 40 \u00e0 50 millions d\u2019ann\u00e9es, avant d\u2019\u00eatre d\u00e9gag\u00e9 par l\u2019\u00e9rosion.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2015\/03\/Bardintzeff.USA2014.15903.signe_.jpg\" rel=\"lightbox[541]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone  wp-image-542\" src=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2015\/03\/Bardintzeff.USA2014.15903.signe_-450x337.jpg\" alt=\"Bardintzeff.USA2014.15903.signe\" width=\"494\" height=\"370\" srcset=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2015\/03\/Bardintzeff.USA2014.15903.signe_-450x337.jpg 450w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2015\/03\/Bardintzeff.USA2014.15903.signe_-1024x768.jpg 1024w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2015\/03\/Bardintzeff.USA2014.15903.signe_.jpg 1417w\" sizes=\"auto, (max-width: 494px) 100vw, 494px\" \/><\/a><\/p>\n<p>Devils Tower (\u00a9 J.M. Bardintzeff).<\/p>\n<p><!--more--><\/p>\n<p>Une l\u00e9gende indienne raconte que sept petites filles \u00e9taient poursuivies par un ours furieux. La terre s\u2019est soulev\u00e9e brusquement sous elles. Ainsi, elles ont pu \u00e9chapper \u00e0 l\u2019animal dont les traces des griffes sont rest\u00e9es imprim\u00e9es dans la roche. Et les petites filles sont mont\u00e9es au ciel pour former la constellation de la grande Ourse\u00a0!<\/p>\n<p>Dans le fameux film de Steven Spielberg \u00ab Rencontres du troisi\u00e8me type \u00bb, les hommes ont rendez-vous avec les extraterrestres justement au pied de Devils Tower.<\/p>\n<p>Certains alpinistes chevronn\u00e9s grimpent au sommet.<\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>Devils Tower, litt\u00e9ralement \u00ab\u00a0la Tour du diable\u00a0\u00bb, est un \u00e9trange piton volcanique situ\u00e9 au nord-est de l\u2019\u00e9tat du Wyoming aux USA. Haute de 268 ou 386 m (selon le point de rep\u00e8re de base), elle culmine \u00e0 1558 m. C\u2019est le premier \u00ab\u00a0National Monument\u00a0\u00bb, cr\u00e9\u00e9 aux \u00c9tats-Unis, en 1906. Elle est constitu\u00e9e d\u2019une roche volcanique &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2015\/03\/08\/image-de-volcan-devils-tower-usa\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Image de volcan : Devils Tower, USA<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/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":[1],"tags":[37,136,137,135,134,38],"class_list":["post-541","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-devils-tower","tag-orgue-volcanique","tag-phonolite","tag-prisme","tag-usa","tag-wyoming"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Image de volcan : Devils Tower, USA, 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\/2015\/03\/08\/image-de-volcan-devils-tower-usa\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Image de volcan : Devils Tower, USA, par Jacques-Marie Bardintzeff\" \/>\n<meta property=\"og:description\" content=\"Devils Tower, litt\u00e9ralement \u00ab\u00a0la Tour du diable\u00a0\u00bb, est un \u00e9trange piton volcanique situ\u00e9 au nord-est de l\u2019\u00e9tat du Wyoming aux USA. Haute de 268 ou 386 m (selon le point de rep\u00e8re de base), elle culmine \u00e0 1558 m. C\u2019est le premier \u00ab\u00a0National Monument\u00a0\u00bb, cr\u00e9\u00e9 aux \u00c9tats-Unis, en 1906. 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