{"id":1697,"date":"2012-10-01T20:28:32","date_gmt":"2012-10-01T18:28:32","guid":{"rendered":"http:\/\/blogs.funiber.org\/pt\/?p=1697"},"modified":"2012-10-01T20:30:33","modified_gmt":"2012-10-01T18:30:33","slug":"megavolcan-de-yellowstone-podria-estallar-sin-alerta-previa","status":"publish","type":"post","link":"https:\/\/www.funiber.blog\/pt\/meio-ambiente\/2012\/10\/01\/megavolcan-de-yellowstone-podria-estallar-sin-alerta-previa","title":{"rendered":"Mega vulc\u00e3o de Yellowstone poderia entrar em erup\u00e7\u00e3o sem aviso pr\u00e9vio"},"content":{"rendered":"<p><a href=\"http:\/\/blogs.funiber.org\/meio-ambiente\/files\/2012\/10\/06-Megavolcan-Yellowstone-300x220.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-1504\" src=\"http:\/\/blogs.funiber.org\/meio-ambiente\/files\/2012\/10\/06-Megavolcan-Yellowstone-300x220.jpg\" alt=\"\" width=\"300\" height=\"220\" \/><\/a>Cresce a preocupa\u00e7\u00e3o em torno do super vulc\u00e3o de Yellowstone, Estados Unidos. Os pesquisadores explicam que n\u00e3o \u00e9 poss\u00edvel antecipar quando haver\u00e1 uma erup\u00e7\u00e3o do mega vulc\u00e3o. No momento ainda n\u00e3o h\u00e1 ind\u00edcios uma poss\u00edvel erup\u00e7\u00e3o, mas, ao mesmo tempo, os pesquisadores asseguram que as erup\u00e7\u00f5es anteriores deste vulc\u00e3o aconteceram muito r\u00e1pido. A \u00faltima erup\u00e7\u00e3o do mega vulc\u00e3o ocorreu faz mais de 70 mil anos. Mas, hoje o ch\u00e3o da cratera \u00a0est\u00e1 se elevando e os terremotos que ocorrem na regi\u00e3o s\u00e3o um indicador claro de que <strong>o<\/strong> magma est\u00e1 se movendo de forma incomum sob o parque.<\/p>\n<p><!--more-->Os pesquisadores indicam que ao analisar a forma e a composi\u00e7\u00e3o dos cristais que se formaram nas erup\u00e7\u00f5es anteriores, pode-se identificar que o magma subiu rapidamente \u00e0 superf\u00edcie. Isto indicaria que quando se recarrega a c\u00e2mara profunda de magma, pode desencadear uma r\u00e1pida erup\u00e7\u00e3o e, portanto, n\u00e3o seria poss\u00edvel emitir um alerta antes da pr\u00f3xima erup\u00e7\u00e3o.<\/p>\n<p>O parque Yellowstone est\u00e1 localizado sobre uma cratera vulc\u00e2nica gigantesca, e sob o parque \u00e9 poss\u00edvel encontrar um enorme reservat\u00f3rio de magma e gases venenosos. A cratera mede 55 por 72 quil\u00f4metros, calcula-se que o super vulc\u00e3o se formou h\u00e1 2.1 milh\u00f5es de anos, e seu \u00faltimo fluxo de lava foi produzido h\u00e1 70 mil anos. Al\u00e9m desta, foram registradas mais tr\u00eas erup\u00e7\u00f5es do vulc\u00e3o: uma ocorreu faz 2.1 milh\u00f5es de anos, outra h\u00e1 1,3 milh\u00f5es e a \u00faltima h\u00e1 640 mil anos; estas erup\u00e7\u00f5es formaram as crateras Island Park, Henry\u00b4s Fork e a cratera de Yellowstone respectivamente.<\/p>\n<p>Representa\u00e7\u00e3o interativa do megavolc\u00e1n (ver foto)<\/p>\n<p>http:\/\/ngm.nationalgeographic.com\/2009\/08\/yellowstone\/yellowstone-interactive<\/p>\n<p><a href=\"http:\/\/www.geosociety.org\/gsatoday\/archive\/22\/9\/abstract\/i1052-5173-22-9-4.htm\">http:\/\/www.geosociety.org\/gsatoday\/archive\/22\/9\/abstract\/i1052-5173-22-9-4.htm<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cresce a preocupa\u00e7\u00e3o em torno do super vulc\u00e3o de Yellowstone, Estados Unidos. Os pesquisadores explicam que n\u00e3o \u00e9 poss\u00edvel antecipar quando haver\u00e1 uma erup\u00e7\u00e3o do mega vulc\u00e3o. No momento ainda n\u00e3o h\u00e1 ind\u00edcios uma poss\u00edvel erup\u00e7\u00e3o, mas, ao mesmo tempo, os pesquisadores asseguram que as erup\u00e7\u00f5es anteriores deste vulc\u00e3o aconteceram muito r\u00e1pido. A \u00faltima erup\u00e7\u00e3o [&hellip;]<\/p>\n","protected":false},"author":13,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_newsletter_tier_id":0,"footnotes":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[2],"tags":[],"jetpack_publicize_connections":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Mega vulc\u00e3o de Yellowstone poderia entrar em erup\u00e7\u00e3o sem aviso pr\u00e9vio - FuniBlogs - FUNIBER<\/title>\n<meta name=\"robots\" content=\"noindex, nofollow\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mega vulc\u00e3o de Yellowstone poderia entrar em erup\u00e7\u00e3o sem aviso pr\u00e9vio - FuniBlogs - FUNIBER\" \/>\n<meta property=\"og:description\" content=\"Cresce a preocupa\u00e7\u00e3o em torno do super vulc\u00e3o de Yellowstone, Estados Unidos. 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