{"id":16271,"date":"2020-03-19T15:36:14","date_gmt":"2020-03-19T15:36:14","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=16271"},"modified":"2020-03-19T15:36:14","modified_gmt":"2020-03-19T15:36:14","slug":"asteroid-impact-dinosaur-extinction-chicxulub-crater","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/vi\/science\/earth-science\/asteroid-impact-dinosaur-extinction-chicxulub-crater\/","title":{"rendered":"Ni\u00ean bi\u1ec3u c\u1ee7a s\u1ef1 t\u00e0n ph\u00e1: Ng\u00e0y ti\u1ec3u h\u00e0nh tinh h\u1ee7y di\u1ec7t th\u1eddi \u0111\u1ea1i kh\u1ee7ng long"},"content":{"rendered":"

Ni\u00ean bi\u1ec3u c\u1ee7a S\u1ef1 t\u00e0n ph\u00e1: Ng\u00e0y m\u00e0 m\u1ed9t ti\u1ec3u h\u00e0nh tinh \u0111\u00e3 ch\u1ea5m d\u1ee9t s\u1ef1 th\u1ed1ng tr\u1ecb c\u1ee7a kh\u1ee7ng long<\/h2>\n\n

Va ch\u1ea1m v\u00e0 h\u00ecnh th\u00e0nh h\u1ed1 va ch\u1ea1m<\/h2>\n\n

V\u00e0o m\u1ed9t ng\u00e0y \u0111\u1ecbnh m\u1ec7nh c\u00e1ch \u0111\u00e2y 66 tri\u1ec7u n\u0103m, m\u1ed9t ti\u1ec3u h\u00e0nh tinh r\u1ed9ng h\u01a1n s\u00e1u d\u1eb7m \u0111\u00e3 \u0111\u00e2m v\u00e0o Tr\u00e1i \u0111\u1ea5t, \u0111\u1ec3 l\u1ea1i m\u1ed9t v\u1ebft s\u1eb9o kh\u1ed5ng l\u1ed3 tr\u00ean h\u00e0nh tinh c\u1ee7a ch\u00fang ta. V\u1ee5 va ch\u1ea1m \u0111\u00e3 t\u1ea1o ra h\u1ed1 va ch\u1ea1m Chicxulub, m\u1ed9t h\u1ed1 va ch\u1ea1m b\u1ecb ch\u00f4n v\u00f9i c\u00f3 \u0111\u01b0\u1eddng k\u00ednh h\u01a1n 90 d\u1eb7m, b\u00ean d\u01b0\u1edbi b\u00e1n \u0111\u1ea3o Yucat\u00e1n v\u00e0 V\u1ecbnh Mexico. S\u1ef1 ki\u1ec7n kinh ho\u00e0ng n\u00e0y \u0111\u00e3 k\u00edch ho\u1ea1t m\u1ed9t lo\u1ea1t c\u00e1c th\u1ea3m h\u1ecda thi\u00ean nhi\u00ean cu\u1ed1i c\u00f9ng d\u1eabn \u0111\u1ebfn s\u1ef1 tuy\u1ec7t ch\u1ee7ng c\u1ee7a kh\u1ee7ng long.<\/p>\n\n

Ng\u00e0y \u0111\u1ea7u ti\u00ean sau va ch\u1ea1m<\/h2>\n\n

Nh\u1edd c\u00e1c m\u1eabu l\u00f5i l\u1ea5y t\u1eeb v\u00e0nh \u0111\u1ec9nh c\u1ee7a h\u1ed1 va ch\u1ea1m, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 t\u00e1i t\u1ea1o m\u1ed9t ni\u00ean bi\u1ec3u chi ti\u1ebft v\u1ec1 c\u00e1c s\u1ef1 ki\u1ec7n di\u1ec5n ra v\u00e0o ng\u00e0y \u0111\u1ea7u ti\u00ean sau v\u1ee5 va ch\u1ea1m. Trong v\u00f2ng v\u00e0i ph\u00fat, t\u1ea3ng \u0111\u00e1 b\u00ean d\u01b0\u1edbi \u0111\u00e3 s\u1ee5p \u0111\u1ed5, t\u1ea1o th\u00e0nh h\u1ed1 va ch\u1ea1m v\u00e0 v\u00e0nh \u0111\u1ec9nh. S\u1ee9c n\u00f3ng c\u1ee7a v\u1ee5 n\u1ed5 \u0111\u00e3 l\u00e0m tan ch\u1ea3y h\u01a1n 70 feet \u0111\u00e1, bao ph\u1ee7 v\u00e0nh \u0111\u1ec9nh.<\/p>\n\n

S\u00f3ng th\u1ea7n v\u00e0 ch\u00e1y r\u1eebng<\/h2>\n\n

Khi bi\u1ec3n tr\u00e0n v\u00e0o h\u1ed1 va ch\u1ea1m m\u1edbi h\u00ecnh th\u00e0nh, n\u00f3 mang theo h\u01a1n 260 feet \u0111\u00e1 n\u00f3ng ch\u1ea3y. M\u1ed9t c\u01a1n s\u00f3ng th\u1ea7n sau \u0111\u00f3 \u0111\u00e3 b\u1ed5 sung th\u00eam m\u1ed9t l\u1edbp tr\u1ea7m t\u00edch kh\u00e1c, bao g\u1ed3m s\u1ecfi, c\u00e1t v\u00e0 than c\u1ee7i t\u1eeb nh\u1eefng khu r\u1eebng b\u1ecb thi\u00eau r\u1ee5i do s\u00f3ng \u0111\u00e1nh.<\/p>\n\n

Gi\u00e1n \u0111o\u1ea1n kh\u00ed quy\u1ec3n v\u00e0 tuy\u1ec7t ch\u1ee7ng<\/h2>\n\n

V\u1ee5 va ch\u1ea1m c\u1ee7a ti\u1ec3u h\u00e0nh tinh \u0111\u00e3 gi\u1ea3i ph\u00f3ng m\u1ed9t l\u01b0\u1ee3ng l\u1edbn l\u01b0u hu\u1ef3nh v\u00e0o kh\u00ed quy\u1ec3n, t\u1ea1o ra m\u1ed9t l\u1edbp s\u01b0\u01a1ng m\u00f9 sunfat aerosol ch\u1eb7n \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi v\u00e0 g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng t\u1ed1i to\u00e0n c\u1ea7u. C\u00e1c nh\u00e0 \u0111\u1ecba ch\u1ea5t tin r\u1eb1ng s\u1ef1 gi\u00e1n \u0111o\u1ea1n kh\u00ed quy\u1ec3n n\u00e0y \u0111\u00e3 g\u00f3p ph\u1ea7n \u0111\u00e1ng k\u1ec3 v\u00e0o s\u1ef1 tuy\u1ec7t ch\u1ee7ng h\u00e0ng lo\u1ea1t sau \u0111\u00f3, v\u00ec nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m m\u1ea1nh v\u00e0 qu\u00e1 tr\u00ecnh quang h\u1ee3p b\u1ecb \u1ee9c ch\u1ebf.<\/p>\n\n

B\u1eb1ng ch\u1ee9ng t\u1eeb h\u1ed1 va ch\u1ea1m Chicxulub<\/h2>\n\n

C\u00e1c l\u00f5i t\u1eeb h\u1ed1 va ch\u1ea1m Chicxulub cung c\u1ea5p b\u1eb1ng ch\u1ee9ng v\u00f4 gi\u00e1 v\u1ec1 s\u1ef1 t\u00e0n ph\u00e1 tr\u00ean to\u00e0n h\u00e0nh tinh do v\u1ee5 va ch\u1ea1m c\u1ee7a ti\u1ec3u h\u00e0nh tinh g\u00e2y ra. Ch\u00fang ti\u1ebft l\u1ed9 th\u1eddi \u0111i\u1ec3m di\u1ec5n ra c\u00e1c s\u1ef1 ki\u1ec7n quan tr\u1ecdng, ch\u1eb3ng h\u1ea1n nh\u01b0 s\u1ef1 h\u00ecnh th\u00e0nh c\u1ee7a v\u00e0nh \u0111\u1ec9nh, s\u00f3ng th\u1ea7n v\u00e0 s\u1ef1 l\u1eafng \u0111\u1ecdng tr\u1ea7m t\u00edch t\u1eeb ch\u00e1y r\u1eebng.<\/p>\n\n

Th\u00e1ch th\u1ee9c v\u00e0 tranh lu\u1eadn<\/h2>\n\n

M\u1eb7c d\u00f9 c\u00e1c l\u00f5i Chicxulub cung c\u1ea5p m\u1ed9t c\u00e1i nh\u00ecn tho\u00e1ng qua v\u1ec1 h\u1eadu qu\u1ea3 ngay l\u1eadp t\u1ee9c c\u1ee7a v\u1ee5 va ch\u1ea1m, nh\u01b0ng vi\u1ec7c gi\u1ea3i th\u00edch h\u1ed3 s\u01a1 \u0111\u00e1 l\u00e0 m\u1ed9t th\u00e1ch th\u1ee9c. \u0110\u1ed9ng \u0111\u1ea5t v\u00e0 c\u00e1c s\u1ef1 ki\u1ec7n kh\u00e1c \u0111\u00e3 l\u00e0m thay \u0111\u1ed5i h\u1ed3 s\u01a1 theo th\u1eddi gian. Tuy nhi\u00ean, nh\u1eefng l\u00f5i n\u00e0y cung c\u1ea5p m\u1ed9t c\u01a1 h\u1ed9i duy nh\u1ea5t \u0111\u1ec3 nghi\u00ean c\u1ee9u c\u00e1c s\u1ef1 ki\u1ec7n \u0111\u1ecba ch\u1ea5t trong th\u1eddi gian ng\u1eafn v\u1edbi m\u1ee9c \u0111\u1ed9 chi ti\u1ebft ch\u01b0a t\u1eebng c\u00f3.<\/p>\n\n

\u00dd ngh\u0129a v\u00e0 th\u1ea3o lu\u1eadn<\/h2>\n\n

Th\u1eddi \u0111i\u1ec3m v\u00e0 m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng c\u1ee7a c\u00e1c s\u1ef1 ki\u1ec7n x\u1ea3y ra sau v\u1ee5 va ch\u1ea1m c\u1ee7a ti\u1ec3u h\u00e0nh tinh c\u00f3 kh\u1ea3 n\u0103ng s\u1ebd g\u00e2y ra tranh lu\u1eadn li\u00ean t\u1ee5c trong gi\u1edbi khoa h\u1ecdc. B\u1eb1ng c\u00e1ch nghi\u00ean c\u1ee9u h\u1ed1 va ch\u1ea1m Chicxulub, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u c\u00f3 th\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 c\u00e1c c\u01a1 ch\u1ebf \u0111\u1eb1ng sau s\u1ef1 tuy\u1ec7t ch\u1ee7ng h\u00e0ng lo\u1ea1t v\u00e0 nh\u1eefng h\u1eadu qu\u1ea3 ti\u1ec1m \u1ea9n c\u1ee7a c\u00e1c v\u1ee5 va ch\u1ea1m ti\u1ec3u h\u00e0nh tinh trong t\u01b0\u01a1ng lai.<\/p>\n\n

T\u00e1c \u0111\u1ed9ng l\u00e2u d\u00e0i<\/h2>\n\n

V\u1ee5 va ch\u1ea1m c\u1ee7a ti\u1ec3u h\u00e0nh tinh kh\u00f4ng ch\u1ec9 ti\u00eau di\u1ec7t kh\u1ee7ng long m\u00e0 c\u00f2n c\u00f3 nh\u1eefng t\u00e1c \u0111\u1ed9ng s\u00e2u r\u1ed9ng \u0111\u1ebfn kh\u00ed h\u1eadu v\u00e0 h\u1ec7 sinh th\u00e1i c\u1ee7a Tr\u00e1i \u0111\u1ea5t. Hi\u1ec7n t\u01b0\u1ee3ng t\u1ed1i to\u00e0n c\u1ea7u do s\u01b0\u01a1ng m\u00f9 sunfat aerosol g\u00e2y ra c\u00f3 th\u1ec3 \u0111\u00e3 g\u00f3p ph\u1ea7n v\u00e0o s\u1ef1 tr\u1ed7i d\u1eady c\u1ee7a \u0111\u1ed9ng v\u1eadt c\u00f3 v\u00fa v\u00e0 s\u1ef1 ti\u1ebfn h\u00f3a c\u1ee7a c\u00e1c lo\u00e0i th\u1ef1c v\u1eadt m\u1edbi. H\u1ed1 va ch\u1ea1m Chicxulub v\u1eabn l\u00e0 m\u1ed9t l\u1eddi nh\u1eafc nh\u1edf v\u1ec1 t\u00e1c \u0111\u1ed9ng s\u00e2u s\u1eafc m\u00e0 c\u00e1c s\u1ef1 ki\u1ec7n ngo\u00e0i Tr\u00e1i \u0111\u1ea5t c\u00f3 th\u1ec3 g\u00e2y ra \u0111\u1ed1i v\u1edbi l\u1ecbch s\u1eed h\u00e0nh tinh c\u1ee7a ch\u00fang ta.<\/p>","protected":false},"excerpt":{"rendered":"

Ni\u00ean bi\u1ec3u c\u1ee7a S\u1ef1 t\u00e0n ph\u00e1: Ng\u00e0y m\u00e0 m\u1ed9t ti\u1ec3u h\u00e0nh tinh \u0111\u00e3 ch\u1ea5m d\u1ee9t s\u1ef1 th\u1ed1ng tr\u1ecb c\u1ee7a kh\u1ee7ng long Va ch\u1ea1m v\u00e0 h\u00ecnh th\u00e0nh h\u1ed1 va ch\u1ea1m V\u00e0o…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[212],"tags":[137,21582,99,5122,561,394],"class_list":["post-16271","post","type-post","status-publish","format-standard","hentry","category-earth-science","tag-paleontology","tag-chicxulub-crater","tag-lifescienceart","tag-dinosaur-extinction","tag-mass-extinction","tag-asteroid-impact"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/16271","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=16271"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/16271\/revisions"}],"predecessor-version":[{"id":16272,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/16271\/revisions\/16272"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=16271"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=16271"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=16271"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}