{"id":3291,"date":"2018-02-05T11:37:30","date_gmt":"2018-02-05T11:37:30","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/?p=3291"},"modified":"2018-02-05T11:40:25","modified_gmt":"2018-02-05T11:40:25","slug":"cristaux-temoins-de-montee-magma","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2018\/02\/05\/cristaux-temoins-de-montee-magma\/","title":{"rendered":"Cristaux t\u00e9moins de la mont\u00e9e du magma"},"content":{"rendered":"

Dans la page \u00ab\u00a0Science\u00a0\u00bb (page 3) du Journal \u00ab\u00a0Le Monde\u00a0\u00bb du mercredi 31 janvier 2018, on peut lire un int\u00e9ressant article, sign\u00e9 par Guillaume Rizza, intitul\u00e9 \u00ab\u00a0Mieux pr\u00e9voir quand un volcan s\u2019\u00e9veillera\u00a0\u00bb et sous-titr\u00e9 \u00ab\u00a0G\u00e9ochimie – L\u2019analyse de microcristaux dans la lave pourrait permettre d\u2019anticiper les \u00e9ruptions en \u00e9valuant le temps de mont\u00e9e du magma jusqu\u2019au crat\u00e8re du volcan\u00a0\u00bb.<\/p>\n

\"\"Article paru dans le journal \u00ab\u00a0Le Monde\u00a0\u00bb le 31\/1\/2018.<\/p>\n

Les r\u00e9sultats ont \u00e9t\u00e9 pr\u00e9sent\u00e9s dans une publication scientifique\u00a0:<\/p>\n

Teresa Ubide et Balz S. Kamber (Dublin, Irlande et Brisbane, Australie) – Volcanic crystals as time capsules of eruption history. Nature Communications, 9, 326, 2018\u00a0:<\/p>\n

https:\/\/www.nature.com\/articles\/s41467-017-02274-w<\/a><\/p>\n

<\/p>\n

Les auteurs ont \u00e9chantillonn\u00e9 les produits des \u00e9ruptions de l\u2019Etna, entre 1974 et 2014. Ils s\u2019int\u00e9ressent \u00e0 un type de cristal\u00a0: les pyrox\u00e8nes. Ceux-ci sont zon\u00e9s c\u2019est-\u00e0-dire qu\u2019ils sont form\u00e9s de couronnes de croissance concentriques de composition chimique variable (notamment en chrome, nickel, scandium). Les pyrox\u00e8nes pr\u00e9sentent un couronne riche en chrome (large de 53 microns et cristallis\u00e9e en 6 jours) t\u00e9moin d\u2019une r\u00e9alimentation magmatique (m\u00e9lange de magma = \u00ab\u00a0magma mixing\u00a0\u00bb dans la chambre magmatique) peu de temps avant l\u2019\u00e9ruption. Cette couronne est elle-m\u00eame entour\u00e9e d\u2019une bordure pauvre en chrome (large de 63 microns et cristallis\u00e9e en 7 jours) correspondant \u00e0 la phase de mont\u00e9e du magma dans la chemin\u00e9e du volcan. Cette mont\u00e9e s\u2019effectuerait \u00e0 une vitesse comprise entre 60 et 600 m\u00e8tres\/heure.<\/p>\n

Guillaume Rizza m\u2019a demand\u00e9, dans son article, mon avis de volcanologue :<\/p>\n

\u00ab Cet article prometteur permet de mieux comprendre le comportement du magma depuis le r\u00e9servoir jusqu\u2019\u00e0 l\u2019\u00e9ruption en surface. Mais pour l\u2019instant, il n\u2019a pas vocation \u00e0 une pr\u00e9vision exacte des \u00e9ruptions, c\u2019est d\u2019ailleurs l\u2019honn\u00eatet\u00e9 du papier que de reconna\u00eetre les incertitudes de mesure \u00bb, pr\u00e9cise Jacques-Marie Bardintzeff.<\/p>\n","protected":false},"excerpt":{"rendered":"

Dans la page \u00ab\u00a0Science\u00a0\u00bb (page 3) du Journal \u00ab\u00a0Le Monde\u00a0\u00bb du mercredi 31 janvier 2018, on peut lire un int\u00e9ressant article, sign\u00e9 par Guillaume Rizza, intitul\u00e9 \u00ab\u00a0Mieux pr\u00e9voir quand un volcan s\u2019\u00e9veillera\u00a0\u00bb et sous-titr\u00e9 \u00ab\u00a0G\u00e9ochimie – L\u2019analyse de microcristaux dans la lave pourrait permettre d\u2019anticiper les \u00e9ruptions en \u00e9valuant le temps de mont\u00e9e du magma … Continuer la lecture de Cristaux t\u00e9moins de la mont\u00e9e du magma<\/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],"tags":[21,401,1127,1128,17,18,1129,341,1130,1131,1132,1133,13],"class_list":["post-3291","post","type-post","status-publish","format-standard","hentry","category-actualites","tag-bardintzeff","tag-chambre-magmatique","tag-chrome","tag-cristal","tag-eruption","tag-etna","tag-le-monde","tag-magma","tag-magma-mixing","tag-melange-de-magmas","tag-pyroxene","tag-rizza","tag-volcanologue"],"yoast_head":"\nCristaux t\u00e9moins de la mont\u00e9e du magma, 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\/2018\/02\/05\/cristaux-temoins-de-montee-magma\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cristaux t\u00e9moins de la mont\u00e9e du magma, par Jacques-Marie Bardintzeff\" \/>\n<meta property=\"og:description\" content=\"Dans la page \u00ab\u00a0Science\u00a0\u00bb (page 3) du Journal \u00ab\u00a0Le Monde\u00a0\u00bb du mercredi 31 janvier 2018, on peut lire un int\u00e9ressant article, sign\u00e9 par Guillaume Rizza, intitul\u00e9 \u00ab\u00a0Mieux pr\u00e9voir quand un volcan s\u2019\u00e9veillera\u00a0\u00bb et sous-titr\u00e9 \u00ab\u00a0G\u00e9ochimie – L\u2019analyse de microcristaux dans la lave pourrait permettre d\u2019anticiper les \u00e9ruptions en \u00e9valuant le temps de mont\u00e9e du magma … Continuer la lecture de Cristaux t\u00e9moins de la mont\u00e9e du magma →\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2018\/02\/05\/cristaux-temoins-de-montee-magma\/\" \/>\n<meta property=\"og:site_name\" content=\"VOLCANMANIA : le blog de Jacques-Marie BARDINTZEFF, volcanologue\" \/>\n<meta property=\"article:published_time\" content=\"2018-02-05T11:37:30+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2018-02-05T11:40:25+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2018\/02\/Le_Monde.20180131_SCH.jpg.low_.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"865\" \/>\n\t<meta property=\"og:image:height\" content=\"1181\" \/>\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=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2018\/02\/05\/cristaux-temoins-de-montee-magma\/\",\"url\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2018\/02\/05\/cristaux-temoins-de-montee-magma\/\",\"name\":\"Cristaux t\u00e9moins de la mont\u00e9e du magma, par Jacques-Marie Bardintzeff\",\"isPartOf\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2018\/02\/05\/cristaux-temoins-de-montee-magma\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2018\/02\/05\/cristaux-temoins-de-montee-magma\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2018\/02\/Le_Monde.20180131_SCH.jpg.low_.jpg\",\"datePublished\":\"2018-02-05T11:37:30+00:00\",\"dateModified\":\"2018-02-05T11:40:25+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\/2018\/02\/05\/cristaux-temoins-de-montee-magma\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2018\/02\/05\/cristaux-temoins-de-montee-magma\/#primaryimage\",\"url\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2018\/02\/Le_Monde.20180131_SCH.jpg.low_.jpg\",\"contentUrl\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2018\/02\/Le_Monde.20180131_SCH.jpg.low_.jpg\",\"width\":865,\"height\":1181},{\"@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 ? Passionn\u00e9ment ! Les volcans ne sont pas toujours m\u00e9chants, ils sont aussi les t\u00e9moins de la Terre active !\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/#\/schema\/person\/974e1e0324e3e06f08253784e8eca61e\",\"name\":\"jmbardintzeff\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/d38cb5297008217786910838f2aa1bda?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/d38cb5297008217786910838f2aa1bda?s=96&d=mm&r=g\",\"caption\":\"jmbardintzeff\"},\"url\":\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/author\/jmbardintzeff\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Cristaux t\u00e9moins de la mont\u00e9e du magma, par Jacques-Marie Bardintzeff","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2018\/02\/05\/cristaux-temoins-de-montee-magma\/","og_locale":"fr_FR","og_type":"article","og_title":"Cristaux t\u00e9moins de la mont\u00e9e du magma, par Jacques-Marie Bardintzeff","og_description":"Dans la page \u00ab\u00a0Science\u00a0\u00bb (page 3) du Journal \u00ab\u00a0Le Monde\u00a0\u00bb du mercredi 31 janvier 2018, on peut lire un int\u00e9ressant article, sign\u00e9 par Guillaume Rizza, intitul\u00e9 \u00ab\u00a0Mieux pr\u00e9voir quand un volcan s\u2019\u00e9veillera\u00a0\u00bb et sous-titr\u00e9 \u00ab\u00a0G\u00e9ochimie – L\u2019analyse de microcristaux dans la lave pourrait permettre d\u2019anticiper les \u00e9ruptions en \u00e9valuant le temps de mont\u00e9e du magma … Continuer la lecture de Cristaux t\u00e9moins de la mont\u00e9e du magma →","og_url":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2018\/02\/05\/cristaux-temoins-de-montee-magma\/","og_site_name":"VOLCANMANIA : le blog de Jacques-Marie BARDINTZEFF, volcanologue","article_published_time":"2018-02-05T11:37:30+00:00","article_modified_time":"2018-02-05T11:40:25+00:00","og_image":[{"width":865,"height":1181,"url":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2018\/02\/Le_Monde.20180131_SCH.jpg.low_.jpg","type":"image\/jpeg"}],"author":"jmbardintzeff","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"jmbardintzeff","Dur\u00e9e de lecture estim\u00e9e":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2018\/02\/05\/cristaux-temoins-de-montee-magma\/","url":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2018\/02\/05\/cristaux-temoins-de-montee-magma\/","name":"Cristaux t\u00e9moins de la mont\u00e9e du magma, par Jacques-Marie Bardintzeff","isPartOf":{"@id":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/#website"},"primaryImageOfPage":{"@id":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2018\/02\/05\/cristaux-temoins-de-montee-magma\/#primaryimage"},"image":{"@id":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2018\/02\/05\/cristaux-temoins-de-montee-magma\/#primaryimage"},"thumbnailUrl":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2018\/02\/Le_Monde.20180131_SCH.jpg.low_.jpg","datePublished":"2018-02-05T11:37:30+00:00","dateModified":"2018-02-05T11:40:25+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\/2018\/02\/05\/cristaux-temoins-de-montee-magma\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2018\/02\/05\/cristaux-temoins-de-montee-magma\/#primaryimage","url":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2018\/02\/Le_Monde.20180131_SCH.jpg.low_.jpg","contentUrl":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2018\/02\/Le_Monde.20180131_SCH.jpg.low_.jpg","width":865,"height":1181},{"@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 ? Passionn\u00e9ment ! Les volcans ne sont pas toujours m\u00e9chants, ils sont aussi les t\u00e9moins de la Terre active !","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Person","@id":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/#\/schema\/person\/974e1e0324e3e06f08253784e8eca61e","name":"jmbardintzeff","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/d38cb5297008217786910838f2aa1bda?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/d38cb5297008217786910838f2aa1bda?s=96&d=mm&r=g","caption":"jmbardintzeff"},"url":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/author\/jmbardintzeff\/"}]}},"_links":{"self":[{"href":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-json\/wp\/v2\/posts\/3291","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-json\/wp\/v2\/comments?post=3291"}],"version-history":[{"count":4,"href":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-json\/wp\/v2\/posts\/3291\/revisions"}],"predecessor-version":[{"id":3296,"href":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-json\/wp\/v2\/posts\/3291\/revisions\/3296"}],"wp:attachment":[{"href":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-json\/wp\/v2\/media?parent=3291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-json\/wp\/v2\/categories?post=3291"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-json\/wp\/v2\/tags?post=3291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}