{"id":8015,"date":"2018-02-02T14:20:37","date_gmt":"2018-02-02T07:20:37","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=8015"},"modified":"2018-02-02T14:20:37","modified_gmt":"2018-02-02T07:20:37","slug":"cac-nha-khoa-hoc-phat-hien-rung-hoa-thach-280-trieu-nam-tuoi-o-nam-cuc","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/cac-nha-khoa-hoc-phat-hien-rung-hoa-thach-280-trieu-nam-tuoi-o-nam-cuc\/","title":{"rendered":"C\u00e1c nh\u00e0 khoa h\u1ecdc ph\u00e1t hi\u1ec7n r\u1eebng h\u00f3a th\u1ea1ch 280 tri\u1ec7u n\u0103m tu\u1ed5i \u1edf Nam C\u1ef1c"},"content":{"rendered":"

\"\"<\/strong><\/p>\n

C\u00e1c nh\u00e0 \u0111\u1ecba ch\u1ea5t h\u1ecdc \u0111\u00e3 ph\u00e1t hi\u1ec7n h\u00f3a th\u1ea1ch c\u00e2y 280 tri\u1ec7u n\u0103m tu\u1ed5i \u1edf Nam C\u1ef1c – \u0111\u01b0\u1ee3c cho l\u00e0 b\u1eb1ng ch\u1ee9ng v\u1ec1 khu r\u1eebng c\u1ed5 nh\u1ea5t \u1edf Nam C\u1ef1c. C\u00e1c c\u00e2y n\u00e0y \u0111\u01b0\u1ee3c tin l\u00e0 \u0111\u00e3 s\u1ed1ng qua nh\u1eefng th\u1eddi k\u1ef3 kh\u00ed h\u1eadu c\u1ef1c \u0111oan v\u1edbi b\u00f3ng t\u1ed1i ho\u00e0n to\u00e0n v\u00e0 \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi li\u00ean t\u1ee5c.<\/p>\n

 <\/p>\n

GS Erik Gulbranson v\u00e0 John Isbell t\u1eeb \u0110\u1ea1i h\u1ecdc Wisconsin-Milwaukee \u0111\u00e3 b\u0103ng qua d\u00e3y n\u00fai Transantarctic trong m\u00f9a h\u00e8 c\u1ee7a Nam C\u1ef1c v\u00e0o t\u1eeb th\u00e1ng 11 \u0111\u1ebfn th\u00e1ng 1. H\u1ecd t\u00ecm th\u1ea5y nh\u1eefng m\u1eabu v\u1eadt c\u1ed5 x\u01b0a trong c\u00e1c t\u1ea3ng \u0111\u00e1 n\u01a1i m\u00e0 m\u1ed9t c\u00e1nh r\u1eebng c\u00f3 th\u1ec3 \u0111\u00e3 t\u1eebng m\u1ecdc.<\/p>\n

Tr\u01b0\u1edbc \u0111\u00f3, nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 t\u00ecm th\u1ea5y nh\u1eefng m\u1ea3nh h\u00f3a th\u1ea1ch c\u1ee7a 13 c\u00e2y m\u00e0 h\u1ecd \u01b0\u1edbc t\u00ednh \u0111\u00e3 h\u01a1n 260 tri\u1ec7u n\u0103m tu\u1ed5i. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 khu r\u1eebng \u0111\u00e3 ph\u00e1t tri\u1ec3n tr\u01b0\u1edbc khi nh\u1eefng con kh\u1ee7ng long \u0111\u1ea7u ti\u00ean xu\u1ea5t hi\u1ec7n v\u00e0o cu\u1ed1i th\u1eddi k\u1ef3 Permian.<\/p>\n

L\u1ea7n n\u00e0y, nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 tr\u1edf l\u1ea1i c\u00e1c v\u00f9ng \u0111\u1ea5t n\u00e0y m\u1ed9t l\u1ea7n n\u1eefa \u0111\u1ec3 t\u00ecm hi\u1ec3u xem c\u00e1ch c\u00e1nh r\u1eebng n\u00e0y c\u00f3 th\u1ec3 ph\u00e1t tri\u1ec3n \u1edf th\u1eddi \u0111\u00f3.<\/p>\n

GS Gulbranson cho hay m\u1ecdi ng\u01b0\u1eddi \u0111\u00e3 bi\u1ebft v\u1ec1 h\u00f3a th\u1ea1ch \u1edf Nam C\u1ef1c t\u1eeb kho\u1ea3ng n\u0103m 1910 nh\u01b0ng ph\u1ea7n l\u1edbn v\u00f9ng n\u00e0y v\u1eabn ch\u01b0a \u0111\u01b0\u1ee3c kh\u00e1m ph\u00e1.<\/p>\n

Khu r\u1eebng n\u00e0y \u0111\u00e3 ph\u00e1t tri\u1ec3n \u1edf v\u0129 \u0111\u1ed9, n\u01a1i m\u00e0 nh\u1eefng c\u00e2y ng\u00e0y nay kh\u00f4ng th\u1ec3 m\u1ecdc l\u00ean. N\u00ean \u00f4ng tin r\u1eb1ng ch\u00fang ph\u1ea3i l\u00e0 m\u1ed9t lo\u00e0i c\u1ef1c k\u1ef3 kh\u1ecfe m\u1ea1nh. Nh\u00f3m nghi\u00ean c\u1ee9u hi\u1ec7n \u0111ang c\u1ed1 g\u1eafng \u0111\u1ec3 hi\u1ec3u t\u1ea1i sao ch\u00fang \u0111\u00e3 tuy\u1ec7t ch\u1ee7ng.<\/p>\n

Kh\u00f4ng c\u00f3 g\u00ec gi\u1ed1ng nh\u01b0 ng\u00e0y nay, GS Gulbranson chia s\u1ebb. Nh\u1eefng c\u00e2y n\u00e0y c\u00f3 th\u1ec3 bi\u1ebfn \u0111\u1ed5i chu k\u1ef3 ph\u00e1t tri\u1ec3n c\u1ee7a ch\u00fang nh\u01b0 b\u1eadt v\u00e0 t\u1eaft c\u00f4ng t\u1eafc b\u00f3ng \u0111\u00e8n. Ch\u00fang t\u00f4i bi\u1ebft r\u1eb1ng c\u00e2y c\u00f3 th\u1ec3 ng\u1ee7 \u0111\u00f4ng v\u00e0o m\u00f9a \u0111\u00f4ng ngay l\u1eadp t\u1ee9c, nh\u01b0ng kh\u00f4ng bi\u1ebft ch\u00fang \u0111\u00e3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o trong su\u1ed1t m\u00f9a h\u00e8.<\/p>\n

Nh\u1eefng c\u00e2y n\u00e0y \u0111\u01b0\u1ee3c cho l\u00e0 \u0111\u00e3 c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i b\u1eb1ng c\u00e1ch s\u1ed1ng g\u1ea7n n\u1eeda n\u0103m trong b\u00f3ng t\u1ed1i tuy\u1ec7t \u0111\u1ed1i, ti\u1ebfp \u0111\u00f3 l\u00e0 \u0111\u1ebfn n\u0103m th\u00e1ng \u00e1nh s\u00e1ng li\u00ean t\u1ee5c.<\/p>\n

Trong th\u1eddi k\u1ef3 Permian, Nam C\u1ef1c \u1ea5m h\u01a1n nhi\u1ec1u so v\u1edbi hi\u1ec7n nay. V\u00e0o th\u1eddi \u0111\u00f3, Nam C\u1ef1c v\u1eabn l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a Gondwana, si\u00eau l\u1ee5c \u0111\u1ecba c\u1ee7a Nam B\u00e1n c\u1ea7u bao g\u1ed3m v\u00f9ng Ch\u00e2u Phi, Nam M\u1ef9, \u1ea2 r\u1eadp, \u1ea4n \u0110\u1ed9 v\u00e0 \u00dac.<\/p>\n

C\u00e1c nh\u00e0 \u0111\u1ecba ch\u1ea5t h\u1ecdc tin r\u1eb1ng khu r\u1eebng \u0111\u01b0\u1ee3c bao ph\u1ee7 b\u1edfi r\u00eau v\u00e0 d\u01b0\u01a1ng x\u1ec9 v\u00e0 tr\u1ea3i d\u00e0i kh\u1eafp to\u00e0n b\u1ed9 Gondwana. Nh\u1eefng c\u00e2y n\u00e0y c\u00f3 th\u1ec3 chuy\u1ec3n t\u1eeb ho\u1ea1t \u0111\u1ed9ng m\u00f9a h\u00e8 sang ng\u1ee7 \u0111\u00f4ng trong m\u00f9a \u0111\u00f4ng nhanh c\u00f3 l\u1ebd ch\u1ec9 trong v\u00f2ng m\u1ed9t th\u00e1ng.<\/p>\n

Trong m\u1ed9t cu\u1ed9c ph\u1ecfng v\u1ea5n ri\u00eang v\u1edbi CNN, GS Gulbranson cho bi\u1ebft vi\u1ec7c x\u00e1c \u0111\u1ecbnh ng\u00e0y c\u1ee7a ho\u00e1 th\u1ea1ch l\u00e0 m\u1ed9t trong nh\u1eefng th\u00e1ch th\u1ee9c l\u1edbn nh\u1ea5t c\u1ee7a nh\u00f3m. Nh\u1eefng ph\u00e1t hi\u1ec7n g\u1ea7n \u0111\u00e2y cho th\u1ea5y r\u1eebng n\u00e0y kho\u1ea3ng 280 tri\u1ec7u n\u0103m tu\u1ed5i, nh\u01b0ng c\u00f3 sai s\u1ed1 kho\u1ea3ng tr\u00ean d\u01b0\u1edbi 20 tri\u1ec7u n\u0103m.<\/p>\n

Nghi\u00ean c\u1ee9u m\u1edbi nh\u1eb1m m\u1ee5c \u0111\u00edch nghi\u00ean c\u1ee9u xem c\u00e1c h\u1ec7 sinh th\u00e1i c\u1ef1c n\u00e0y \u0111\u00e3 thay \u0111\u1ed5i nh\u01b0 th\u1ebf n\u00e0o trong su\u1ed1t s\u1ef1 ki\u1ec7n tuy\u1ec7t ch\u1ee7ng h\u00e0ng lo\u1ea1t v\u00e0o cu\u1ed1i k\u1ef7 Permian c\u00e1ch \u0111\u00e2y 250 tri\u1ec7u n\u0103m.<\/p>\n

M\u1eb7c d\u00f9 nghi\u00ean c\u1ee9u v\u1ec1 nguy\u00ean nh\u00e2n g\u00e2y ra s\u1ef1 ki\u1ec7n \u0111\u1ea1i tuy\u1ec7t ch\u1ee7ng v\u1eabn \u0111ang ti\u1ebfp di\u1ec5n, nhi\u1ec1u nh\u00e0 khoa h\u1ecdc tin r\u1eb1ng 90% c\u00e1c lo\u00e0i \u0111\u00e3 b\u1ecb x\u00f3a s\u1ea1ch kh\u1ecfi tr\u00e1i \u0111\u1ea5t, bao g\u1ed3m c\u1ea3 r\u1eebng Nam c\u1ef1c n\u00e0y.<\/p>\n

GS Gulbranson cho bi\u1ebft: Khu r\u1eebng s\u1ebd mang l\u1ea1i m\u1ed9t c\u00e1i nh\u00ecn tho\u00e1ng qua v\u1ec1 s\u1ef1 s\u1ed1ng tr\u01b0\u1edbc \u0111\u1ea1i tuy\u1ec7t ch\u1ee7ng, c\u00f3 th\u1ec3 gi\u00fap ch\u00fang ta hi\u1ec3u nguy\u00ean nh\u00e2n g\u00e2y ra s\u1ef1 ki\u1ec7n n\u00e0y. N\u00f3 c\u0169ng c\u00f3 th\u1ec3 cung c\u1ea5p nh\u1eefng manh m\u1ed1i v\u1ec1 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa th\u1ef1c v\u1eadt ng\u00e0y nay v\u00e0 trong qu\u00e1 kh\u1ee9.<\/p>\n

GS c\u0169ng cho r\u1eb1ng, c\u00f4ng tr\u00ecnh c\u1ee7a m\u00ecnh c\u00f3 th\u1ec3 gi\u00fap hi\u1ec3u \u0111\u01b0\u1ee3c t\u00e1c \u0111\u1ed9ng c\u1ee7a bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu \u0111\u01b0\u01a1ng \u0111\u1ea1i v\u00e0 cho r\u1eb1ng s\u1ef1 \u1ea5m l\u00ean to\u00e0n c\u1ea7u ng\u00e0y nay c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u00e1c c\u00e1nh r\u1eebng di chuy\u1ec3n v\u1ec1 ph\u00eda B\u1eafc c\u1ef1c \u1edf nh\u1eefng n\u01a1i nh\u01b0 B\u1eafc c\u1ef1c Siberia v\u00e0 B\u1eafc c\u1ef1c Canada.<\/p>\n

(D\u00e2n tr\u00ed)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00e1c nh\u00e0 \u0111\u1ecba ch\u1ea5t h\u1ecdc \u0111\u00e3 ph\u00e1t hi\u1ec7n h\u00f3a th\u1ea1ch c\u00e2y 280 tri\u1ec7u n\u0103m tu\u1ed5i \u1edf Nam C\u1ef1c – \u0111\u01b0\u1ee3c cho l\u00e0 b\u1eb1ng ch\u1ee9ng v\u1ec1 khu r\u1eebng c\u1ed5 nh\u1ea5t \u1edf Nam C\u1ef1c. C\u00e1c c\u00e2y n\u00e0y \u0111\u01b0\u1ee3c tin l\u00e0 \u0111\u00e3 s\u1ed1ng qua nh\u1eefng th\u1eddi k\u1ef3 kh\u00ed h\u1eadu c\u1ef1c \u0111oan v\u1edbi b\u00f3ng t\u1ed1i ho\u00e0n to\u00e0n v\u00e0 \u00e1nh […]<\/p>\n","protected":false},"author":18,"featured_media":8016,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-8015","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/8015","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=8015"}],"version-history":[{"count":2,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/8015\/revisions"}],"predecessor-version":[{"id":8018,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/8015\/revisions\/8018"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/8016"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=8015"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=8015"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=8015"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}