{"id":1552,"date":"2016-09-08T19:10:56","date_gmt":"2016-09-08T19:10:56","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/?p=1552"},"modified":"2016-09-08T19:25:13","modified_gmt":"2016-09-08T19:25:13","slug":"doigt-de-sainte-anne","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2016\/09\/08\/doigt-de-sainte-anne\/","title":{"rendered":"Le Doigt de Sainte-Anne"},"content":{"rendered":"<p>Le Doigt de Sainte-Anne, \u00e0 Kerguelen, est une ancienne chemin\u00e9e volcanique, remplie de magma solidifi\u00e9, ult\u00e9rieurement d\u00e9gag\u00e9e par l\u2019\u00e9rosion, appel\u00e9e \u00ab\u00a0neck\u00a0\u00bb.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1554\" src=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2016\/09\/Bardintzeff.KER-11.14-Doigt-Ste-Anne.s-297x450.jpg\" alt=\"bardintzeff-ker-11-14-doigt-ste-anne-s\" width=\"406\" height=\"615\" srcset=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2016\/09\/Bardintzeff.KER-11.14-Doigt-Ste-Anne.s-297x450.jpg 297w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2016\/09\/Bardintzeff.KER-11.14-Doigt-Ste-Anne.s-768x1164.jpg 768w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2016\/09\/Bardintzeff.KER-11.14-Doigt-Ste-Anne.s-676x1024.jpg 676w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2016\/09\/Bardintzeff.KER-11.14-Doigt-Ste-Anne.s.jpg 1169w\" sizes=\"auto, (max-width: 406px) 100vw, 406px\" \/><\/p>\n<p>Le Doigt de Sainte-Anne (vu d\u2019h\u00e9licopt\u00e8re) culmine \u00e0 154 m\u00e8tres (\u00a9 J.M. Bardintzeff).<\/p>\n<p><!--more-->Un neck est une \u00ab\u00a0intrusion\u00a0\u00bb c\u2019est-\u00e0-dire que le magma s\u2019est infiltr\u00e9 dans l\u2019\u00e9difice volcanique. Parfois, lors de son refroidissement, la roche acquiert un d\u00e9bit en prismes\u00a0: un neck est prism\u00e9 de fa\u00e7on radiaire.<\/p>\n<p>La roche Sanadoire dans le Mont-Dore en Auvergne est un poly-necks, r\u00e9sultat de remplissages successifs de plusieurs chemin\u00e9es coalescentes.<\/p>\n<p>Voir aussi mes posts du 6\/6\/2015 (concernant la Vall\u00e9e des dykes au Cap-Vert), du 11\/6\/2015 et du 20\/6\/2015 (mots cl\u00e9s \u00ab\u00a0intrusion\u00a0\u00bb et neck\u00a0\u00bb).<\/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>Le Doigt de Sainte-Anne, \u00e0 Kerguelen, est une ancienne chemin\u00e9e volcanique, remplie de magma solidifi\u00e9, ult\u00e9rieurement d\u00e9gag\u00e9e par l\u2019\u00e9rosion, appel\u00e9e \u00ab\u00a0neck\u00a0\u00bb. Le Doigt de Sainte-Anne (vu d\u2019h\u00e9licopt\u00e8re) culmine \u00e0 154 m\u00e8tres (\u00a9 J.M. Bardintzeff).<!-- 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":[8],"tags":[535,183,518,182],"class_list":["post-1552","post","type-post","status-publish","format-standard","hentry","category-voyages","tag-doigt-de-sainte-anne","tag-intrusion","tag-kerguelen","tag-neck"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Le Doigt de Sainte-Anne, 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\/2016\/09\/08\/doigt-de-sainte-anne\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Le Doigt de Sainte-Anne, par Jacques-Marie Bardintzeff\" \/>\n<meta property=\"og:description\" content=\"Le Doigt de Sainte-Anne, \u00e0 Kerguelen, est une ancienne chemin\u00e9e volcanique, remplie de magma solidifi\u00e9, ult\u00e9rieurement d\u00e9gag\u00e9e par l\u2019\u00e9rosion, appel\u00e9e \u00ab\u00a0neck\u00a0\u00bb. 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