{"id":33710,"date":"2019-05-09T23:00:56","date_gmt":"2019-05-09T23:00:56","guid":{"rendered":"https:\/\/dev.explora.cl\/aricayparinacota\/?p=33710"},"modified":"2019-06-11T16:37:45","modified_gmt":"2019-06-11T20:37:45","slug":"el-ultimo-dia-de-los-dinosaurios","status":"publish","type":"post","link":"https:\/\/dev.explora.cl\/aricayparinacota\/el-ultimo-dia-de-los-dinosaurios\/","title":{"rendered":"El \u00faltimo d\u00eda de los dinosaurios"},"content":{"rendered":"

La historia es sobradamente conocida. Hace 66 millones de a\u00f1os, un enorme asteroide impact\u00f3 en la costa de Yucat\u00e1n, cerca de lo que hoy es la ciudad de Chicxulub, en el golfo de M\u00e9xico. El violento choque levant\u00f3 una monta\u00f1a de material fundido m\u00e1s alta que el Everest y m\u00e1s caliente que la superficie del Sol, liberando m\u00e1s energ\u00eda que mil millones de bombas como la de Hiroshima. El terreno se incendi\u00f3 en miles de kil\u00f3metros a la redonda y una lluvia de roca fundida cay\u00f3 sobre el hemisferio occidental, calcinando el 70% de los bosques. El polvo acumulado en la atm\u00f3sfera impidi\u00f3 durante meses la fotos\u00edntesis de las plantas terrestres y del fitoplancton marino, colapsando las cadenas tr\u00f3ficas y el ciclo del carbono en tierra y mar, y la falta de luz congel\u00f3 el planeta. El ox\u00edgeno pr\u00e1cticamente desapareci\u00f3 de la atm\u00f3sfera, sustituido por mon\u00f3xido y di\u00f3xido de carbono, metano y azufre, que provocaron lluvias \u00e1cidas durante meses. Como consecuencia, el 75% de las especies fue aniquilado, el 99,9% de todos los organismos vivos pereci\u00f3 y el ecosistema planetario fue destruido y tuvo que reinventarse. Despu\u00e9s del impacto, la Tierra cambi\u00f3 de era geol\u00f3gica: termin\u00f3 el Cret\u00e1cico, con \u00e9l la era mesozoica, y empez\u00f3 el Cenozoico.<\/p>\n

\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

Varios peces fosilizados, con una antig\u00fcedad de 65 millones de a\u00f1os, en el yacimiento de Tanis (Dakota del Norte).<\/p>\n","protected":false},"author":2,"featured_media":33712,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[139,4],"tags":[],"class_list":["post-33710","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-lugar-4","category-noticias"],"acf":[],"yoast_head":"\nEl \u00faltimo d\u00eda de los dinosaurios - Arica y Parinacota<\/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:\/\/dev.explora.cl\/aricayparinacota\/el-ultimo-dia-de-los-dinosaurios\/\" class=\"yoast-seo-meta-tag\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" class=\"yoast-seo-meta-tag\" \/>\n<meta property=\"og:type\" content=\"article\" class=\"yoast-seo-meta-tag\" \/>\n<meta property=\"og:title\" content=\"El \u00faltimo d\u00eda de los dinosaurios - 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