{"id":1074,"date":"2022-03-22T21:17:43","date_gmt":"2022-03-22T21:17:43","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/frankel\/?p=1074"},"modified":"2024-12-26T17:20:59","modified_gmt":"2024-12-26T17:20:59","slug":"le-volcan-martien-des-canaries","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/frankel\/2022\/03\/22\/le-volcan-martien-des-canaries\/","title":{"rendered":"Le volcan martien des Canaries"},"content":{"rendered":"\r\n

L’\u00e9ruption et la constitution d’un nouveau c\u00f4ne volcanique se sont d\u00e9roul\u00e9es sur l’\u00eele de La Palma (la plus \u00e0 l’ouest dans l’archipel des Canaries), du 19 septembre au 13 d\u00e9cembre 2021. \u00c9tonnamment, le d\u00e9bit de lave et de cendres a \u00e9t\u00e9 assez consid\u00e9rable en ce court laps de temps. Ma photo ci-dessous fut prise le 8 mars 2022.<\/p>\r\n

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Le c\u00f4ne le plus r\u00e9cent de La Palma (\u00e9ruption septembre-d\u00e9cembre 2021 sur le Cumbre Vieja)<\/figcaption><\/figure>\r\n


La nature basaltique et la fluidit\u00e9 de ces laves repr\u00e9sentent bien ce que l’on observerait sur les flancs d’un volcan martien. Mais ce qui m’a le plus interpell\u00e9, ce sont les cascades de lave (aujourd’hui fig\u00e9es) qui ont d\u00e9val\u00e9 la falaise de la c\u00f4te (falaise tr\u00e8s escarp\u00e9e, taill\u00e9e par \u00e9rosion et glissements de terrain dans des laves plus anciennes).\u00a0<\/p>\r\n

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Coul\u00e9es de lave franchissant les falaises de La Palma<\/figcaption><\/figure>\r\n


On croirait voir les cascades de lave qui d\u00e9valent les falaises d’Olympus Mons sur Mars, sur son flanc est (deux photos ci-dessous, en plan large et en perspective gros plan, Mars Express, ESA)<\/p>\r\n

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Cascades de lave sur la falaise d’Olympus Mons, Mars.<\/figcaption><\/figure>\r\n

Outre ces aspects saisissants de l’\u00e9ruption, ce nouveau volcan a bien s\u00fbr \u00e9branl\u00e9 la vie de ce qui \u00e9tait en fait une r\u00e9gion de La Palma assez dens\u00e9ment peupl\u00e9e, car ensoleill\u00e9e et propice aux bananeraies. Plus de 2000 b\u00e2timents (serres comprises) ont \u00e9t\u00e9 d\u00e9truites par la lave et la cendre, et environ 500 personnes ont perdu leur domicile: la r\u00e9gion prendra du temps \u00e0 s’en remettre.<\/p>\r\n","protected":false},"excerpt":{"rendered":"

L’\u00e9ruption et la constitution d’un nouveau c\u00f4ne volcanique se sont d\u00e9roul\u00e9es sur l’\u00eele de La Palma (la plus \u00e0 l’ouest dans l’archipel des Canaries), du 19 septembre au 13 d\u00e9cembre 2021. \u00c9tonnamment, le d\u00e9bit de lave et de cendres a \u00e9t\u00e9 assez consid\u00e9rable en ce court laps de temps. Ma photo ci-dessous fut prise le … Continuer la lecture de Le volcan martien des Canaries<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[13,5,4],"tags":[],"class_list":["post-1074","post","type-post","status-publish","format-standard","hentry","category-actualites","category-mes-projets","category-sciences"],"yoast_head":"\nLe volcan martien des Canaries - Carnets de bord d\u2019un martien, le blog de Charles FRANKEL, g\u00e9ologue<\/title>\n<meta name=\"description\" content=\"L'\u00e9ruption volcanique de Cumbre Vieja \u00e0 La Palma dans les Canaries (2021), avec ses cascades de lave, \u00e9voque le volcan martien Olympus Mons.\" \/>\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\/frankel\/2022\/03\/22\/le-volcan-martien-des-canaries\/\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Charles Frankel\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2022\/03\/22\/le-volcan-martien-des-canaries\/\",\"url\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2022\/03\/22\/le-volcan-martien-des-canaries\/\",\"name\":\"Le volcan martien des Canaries - Carnets de bord d\u2019un martien, le blog de Charles FRANKEL, g\u00e9ologue\",\"isPartOf\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2022\/03\/22\/le-volcan-martien-des-canaries\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2022\/03\/22\/le-volcan-martien-des-canaries\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2022\/03\/mid-res-la-Palma-Cumbre-Vieja-scaled.jpeg\",\"datePublished\":\"2022-03-22T21:17:43+00:00\",\"dateModified\":\"2024-12-26T17:20:59+00:00\",\"author\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/#\/schema\/person\/c6bf521c6d19bf22fb19fb2b3d6fcf63\"},\"description\":\"L'\u00e9ruption volcanique de Cumbre Vieja \u00e0 La Palma dans les Canaries (2021), avec ses cascades de lave, \u00e9voque le volcan martien Olympus Mons.\",\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/blogs.futura-sciences.com\/frankel\/2022\/03\/22\/le-volcan-martien-des-canaries\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2022\/03\/22\/le-volcan-martien-des-canaries\/#primaryimage\",\"url\":\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2022\/03\/mid-res-la-Palma-Cumbre-Vieja-scaled.jpeg\",\"contentUrl\":\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2022\/03\/mid-res-la-Palma-Cumbre-Vieja-scaled.jpeg\",\"width\":2560,\"height\":1707,\"caption\":\"Le c\u00f4ne le plus r\u00e9cent de La Palma (\u00e9ruption septembre-d\u00e9cembre 2021 sur le Cumbre Vieja)\"},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/#website\",\"url\":\"https:\/\/blogs.futura-sciences.com\/frankel\/\",\"name\":\"Carnets de bord d\u2019un martien, le blog de Charles FRANKEL, g\u00e9ologue\",\"description\":\"La science ? 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