{"id":225,"date":"2017-06-29T10:32:21","date_gmt":"2017-06-29T08:32:21","guid":{"rendered":"http:\/\/vulcania-sciences.scopika.com\/?page_id=225"},"modified":"2023-03-22T09:50:18","modified_gmt":"2023-03-22T08:50:18","slug":"massif-central","status":"publish","type":"page","link":"https:\/\/www.vulcania.com\/science\/auvergne\/massif-central\/","title":{"rendered":"Massif Central"},"content":{"rendered":"

[vc_row el_class=\u00a0\u00bbbloc-titre\u00a0\u00bb][vc_column width=\u00a0\u00bb1\/12″][\/vc_column][vc_column width=\u00a0\u00bb10\/12″][vc_column_text]Le\u00a0Massif Central<\/strong>\u00a0abrite le plus vaste ensemble de volcans r\u00e9cents d\u2019Europe continentale, contemporains de la formation des Alpes.<\/p>\n

Ce volcanisme est aujourd\u2019hui interpr\u00e9t\u00e9 comme une cons\u00e9quence des grands mouvements tectoniques<\/a> ayant conduit \u00e0 la formation des Alpes.<\/p>\n

Une importante fracturation du Massif Central et un amincissement de la cro\u00fbte ont provoqu\u00e9 les grands bassins d\u2019effondrement – les Limagnes – et favoris\u00e9 une remont\u00e9e du manteau terrestre.<\/p>\n

Une quinzaine de provinces volcaniques distinctes est identifi\u00e9e dans le Massif Central.<\/p>\n

Sur un vieux socle continental granitique et m\u00e9tamorphique datant de l\u2019\u00e8re Primaire, l\u2019activit\u00e9 \u00e9ruptive a d\u00e9but\u00e9 il y a environ 60 millions d\u2019ann\u00e9es (Ma). Elle devint significative il y a environ 20 Ma, juste apr\u00e8s l\u2019effondrement des Limagnes.<\/p>\n

Les massifs volcaniques les plus importants se sont \u00e9difi\u00e9s entre 12 Ma et\u2026 – 6 700 ans.<\/p>\n

L\u2019histoire du volcanisme en Auvergne est complexe, longue et vari\u00e9e ; aujourd\u2019hui, tout laisse penser que ce volcanisme n\u2019est qu\u2019endormi. Apr\u00e8s tout, qu\u2019est-ce que 6 500 ans de repos, au regard de 60 millions d\u2019ann\u00e9es d\u2019activit\u00e9 ?[\/vc_column_text][vc_column_text el_class=\u00a0\u00bbbloc contour\u00a0\u00bb]NB : la derni\u00e8re \u00e9ruption dont l\u2019origine est \u00e9tablie ne date que de 6 700 ans (maar<\/a> du lac Pavin). Si on a r\u00e9cemment d\u00e9couvert dans la Cha\u00eene des Puys et \u00e0 sa p\u00e9riph\u00e9rie des d\u00e9p\u00f4ts volcaniques qui ont fourni des \u00e2ges de seulement 5 000 ans, des incertitudes demeurent n\u00e9anmoins sur l\u2019exactitude de ces datations et la nature pr\u00e9cise du mat\u00e9riau dat\u00e9.<\/em>[\/vc_column_text][\/vc_column][vc_column width=\u00a0\u00bb1\/12″][\/vc_column][\/vc_row][vc_row][vc_column]

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Exp\u00e9rimentez \u00e0 Vulcania<\/h4><\/span><\/span>\n<\/div>
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R\u00e9veil des G\u00e9ants d'Auvergne<\/h3>\n

Depuis environ 7000 ans, le volcanisme d'Auvergne semble en sommeil... Et si les volcans de la Cha\u00eene des Puys se r\u00e9veillaient ? Vivez en direct leur r\u00e9veil dans cette attraction dynamique !<\/p>\n\n\t\t<\/div>\n\t<\/div>\n

En savoir plus sur \"R\u00e9veil des g\u00e9ants d'Auvergne\"<\/a><\/div><\/div><\/div><\/div>
<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>[\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"Exp\u00e9rimentez \u00e0 Vulcania R\u00e9veil des G\u00e9ants d'Auvergne Depuis environ 7000 ans, le volcanisme d'Auvergne semble en sommeil... Et si les volcans de la Cha\u00eene des Puys se r\u00e9veillaient ? Vivez en direct leur r\u00e9veil dans cette attraction dynamique ! En savoir plus sur \"R\u00e9veil des g\u00e9ants d'Auvergne\"","protected":false},"author":1,"featured_media":732,"parent":99,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"tags":[13],"acf":[],"yoast_head":"\nTout savoir sur les volcans du Massif Central avec Vulcania<\/title>\n<meta name=\"description\" content=\"Les scientifiques de Vulcania vous d\u00e9crivent le plus vaste ensemble de volcans r\u00e9cents d'Europe continentale !\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.vulcania.com\/science\/auvergne\/massif-central\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tout savoir sur les volcans du Massif Central avec Vulcania\" \/>\n<meta property=\"og:description\" content=\"Les scientifiques de Vulcania 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