{"id":4109,"date":"2019-01-02T12:39:19","date_gmt":"2019-01-02T12:39:19","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/?p=4109"},"modified":"2019-01-02T12:46:34","modified_gmt":"2019-01-02T12:46:34","slug":"chambre-magmatique-ou-mush","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2019\/01\/02\/chambre-magmatique-ou-mush\/","title":{"rendered":"Chambre magmatique ou \u00ab mush \u00bb ?"},"content":{"rendered":"<p>Y-a-t-il des chambres magmatiques sous les volcans\u00a0? Si oui, \u00e0 quoi ressemblent-t-elles\u00a0? Vaste question que se pose depuis longtemps la communaut\u00e9 des volcanologues. Le fameux massif plutonique du Skaergaard au Groenland est consid\u00e9r\u00e9 comme un t\u00e9moin, avec un article d\u00e9j\u00e0 publi\u00e9 en 1939\u00a0:<\/p>\n<p>Wager L.R. et Deer W.A. &#8211; Geological investigations in East Greenland : part III, The petrology of the Skaergaard intrusion, Kangerdlugssuaq, East Greenland, Medd. Gr\u00f6nland, 105, 4, 1-352, 1939.<\/p>\n<p>Dans un article tout r\u00e9cent, des chercheurs anglo-saxons expliquent qu\u2019une chambre magmatique n\u2019est pas remplie d\u2019une seule phase liquide appel\u00e9e magma mais plut\u00f4t d\u2019une bouillie (\u00ab\u00a0<em>mush<\/em>\u00a0\u00bb en anglais) de cristaux.<\/p>\n<p>Jackson M.D., Blundy J. et Sparks R.S.J. &#8211; Chemical differentiation, cold storage and remobilization of magma in the Earth\u2019s crust. Nature, 3\/12\/2018<\/p>\n<p>Voir le post publi\u00e9 le 21\/12\/2018 par Laurent Sacco sur le site de Futura-Sciences\u00a0:<\/p>\n<p><a href=\"https:\/\/www.futura-sciences.com\/planete\/actualites\/geologie-faut-il-revoir-theorie-chambres-magmatiques-sous-volcans-49938\/\">https:\/\/www.futura-sciences.com\/planete\/actualites\/geologie-faut-il-revoir-theorie-chambres-magmatiques-sous-volcans-49938\/<\/a><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-4112\" src=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2019\/01\/Bardintzeff.SAM_0623.s-450x338.jpg\" alt=\"\" width=\"450\" height=\"338\" srcset=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2019\/01\/Bardintzeff.SAM_0623.s-450x338.jpg 450w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2019\/01\/Bardintzeff.SAM_0623.s-768x576.jpg 768w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2019\/01\/Bardintzeff.SAM_0623.s-1024x768.jpg 1024w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2019\/01\/Bardintzeff.SAM_0623.s.jpg 1984w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/p>\n<p>Le Fogo au Cap-Vert en \u00e9ruption en janvier 2015 (\u00a9 J.M. Bardintzeff).<\/p>\n<p><!--more--><\/p>\n<p>La phase solide serait donc pr\u00e9pond\u00e9rante. La phase liquide, minoritaire mais plus l\u00e9g\u00e8re, monte en circulant dans les interstices entre les cristaux, r\u00e9agissant avec eux, les fondant en partie. Une fraction essentiellement liquide en quantit\u00e9 significative peut alors parfois se s\u00e9gr\u00e9ger dans une chambre \u00e9ph\u00e9m\u00e8re, conduisant \u00e9ventuellement \u00e0 une \u00e9ruption.<\/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>Y-a-t-il des chambres magmatiques sous les volcans\u00a0? Si oui, \u00e0 quoi ressemblent-t-elles\u00a0? Vaste question que se pose depuis longtemps la communaut\u00e9 des volcanologues. Le fameux massif plutonique du Skaergaard au Groenland est consid\u00e9r\u00e9 comme un t\u00e9moin, avec un article d\u00e9j\u00e0 publi\u00e9 en 1939\u00a0: Wager L.R. et Deer W.A. &#8211; Geological investigations in East Greenland : &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2019\/01\/02\/chambre-magmatique-ou-mush\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Chambre magmatique ou \u00ab mush \u00bb ?<\/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":[6],"tags":[115,401,114,1034,1407,1408,341,1409,616,1410],"class_list":["post-4109","post","type-post","status-publish","format-standard","hentry","category-actualites","tag-cap-vert","tag-chambre-magmatique","tag-fogo","tag-futura-sciences","tag-groenland","tag-jackson","tag-magma","tag-mush","tag-sacco","tag-skaergaard"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Chambre magmatique ou \u00ab mush \u00bb ?, 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\/2019\/01\/02\/chambre-magmatique-ou-mush\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Chambre magmatique ou \u00ab mush \u00bb ?, par Jacques-Marie Bardintzeff\" \/>\n<meta property=\"og:description\" content=\"Y-a-t-il des chambres magmatiques sous les volcans\u00a0? 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Le fameux massif plutonique du Skaergaard au Groenland est consid\u00e9r\u00e9 comme un t\u00e9moin, avec un article d\u00e9j\u00e0 publi\u00e9 en 1939\u00a0: Wager L.R. et Deer W.A. &#8211; Geological investigations in East Greenland : &hellip; Continuer la lecture de Chambre magmatique ou \u00ab mush \u00bb ? &rarr;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2019\/01\/02\/chambre-magmatique-ou-mush\/\" \/>\n<meta property=\"og:site_name\" content=\"VOLCANMANIA : le blog de Jacques-Marie BARDINTZEFF, volcanologue\" \/>\n<meta property=\"article:published_time\" content=\"2019-01-02T12:39:19+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2019-01-02T12:46:34+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2019\/01\/Bardintzeff.SAM_0623.s-450x338.jpg\" \/>\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\/2019\/01\/02\/chambre-magmatique-ou-mush\/\",\"url\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2019\/01\/02\/chambre-magmatique-ou-mush\/\",\"name\":\"Chambre magmatique ou \u00ab mush \u00bb ?, par Jacques-Marie Bardintzeff\",\"isPartOf\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2019\/01\/02\/chambre-magmatique-ou-mush\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2019\/01\/02\/chambre-magmatique-ou-mush\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2019\/01\/Bardintzeff.SAM_0623.s-450x338.jpg\",\"datePublished\":\"2019-01-02T12:39:19+00:00\",\"dateModified\":\"2019-01-02T12:46:34+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\/2019\/01\/02\/chambre-magmatique-ou-mush\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2019\/01\/02\/chambre-magmatique-ou-mush\/#primaryimage\",\"url\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2019\/01\/Bardintzeff.SAM_0623.s.jpg\",\"contentUrl\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2019\/01\/Bardintzeff.SAM_0623.s.jpg\",\"width\":1984,\"height\":1488},{\"@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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