{"id":15898,"date":"2024-04-13T01:13:04","date_gmt":"2024-04-13T01:13:04","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=15898"},"modified":"2024-04-13T01:13:04","modified_gmt":"2024-04-13T01:13:04","slug":"moon-formation-tungsten-puzzle","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/vi\/science\/astronomy\/moon-formation-tungsten-puzzle\/","title":{"rendered":"Ngu\u1ed3n g\u1ed1c M\u1eb7t tr\u0103ng v\u00e0 C\u00e2u \u0111\u1ed1 Vonfram"},"content":{"rendered":"

Ngu\u1ed3n g\u1ed1c M\u1eb7t tr\u0103ng v\u00e0 C\u00e2u \u0111\u1ed1 Vonfram<\/h2>\n\n

S\u1ef1 h\u00ecnh th\u00e0nh M\u1eb7t tr\u0103ng<\/h2>\n\n

Theo gi\u1ea3 thuy\u1ebft va ch\u1ea1m l\u1edbn \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn r\u1ed9ng r\u00e3i, M\u1eb7t tr\u0103ng \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh c\u00e1ch \u0111\u00e2y kho\u1ea3ng 4,5 t\u1ef7 n\u0103m khi m\u1ed9t thi\u00ean th\u1ec3 c\u1ee1 Sao H\u1ecfa c\u00f3 t\u00ean Theia va ch\u1ea1m v\u1edbi Tr\u00e1i \u0111\u1ea5t. C\u00e1c m\u00f4 ph\u1ecfng v\u00e0 ph\u00e2n t\u00edch \u0111\u00e1 M\u1eb7t tr\u0103ng cho th\u1ea5y M\u1eb7t tr\u0103ng ch\u1ee7 y\u1ebfu bao g\u1ed3m v\u1eadt ch\u1ea5t t\u1eeb l\u1edbp ph\u1ee7 c\u1ee7a Theia, c\u00f3 th\u00e0nh ph\u1ea7n t\u01b0\u01a1ng t\u1ef1 nh\u01b0 l\u1edbp ph\u1ee7 c\u1ee7a Tr\u00e1i \u0111\u1ea5t.<\/p>\n\n

Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a M\u1eb7t tr\u0103ng<\/h2>\n\n

Tuy nhi\u00ean, c\u00e1c h\u00e0nh tinh th\u01b0\u1eddng c\u00f3 th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc ri\u00eang bi\u1ec7t. N\u1ebfu Theia h\u00ecnh th\u00e0nh \u1edf n\u01a1i c\u00e1ch xa Tr\u00e1i \u0111\u1ea5t, th\u00e0nh ph\u1ea7n c\u1ee7a n\u00f3 h\u1eb3n \u0111\u00e3 kh\u00e1c v\u00e0 th\u00e0nh ph\u1ea7n c\u1ee7a M\u1eb7t tr\u0103ng kh\u00f4ng n\u00ean gi\u1ed1ng v\u1edbi l\u1edbp ph\u1ee7 c\u1ee7a Tr\u00e1i \u0111\u1ea5t.<\/p>\n\n

C\u00e2u \u0111\u1ed1 Vonfram<\/h2>\n\n

M\u1ed9t nguy\u00ean t\u1ed1 l\u00e0m ph\u1ee9c t\u1ea1p th\u00eam c\u00e2u chuy\u1ec7n v\u1ec1 ngu\u1ed3n g\u1ed1c c\u1ee7a M\u1eb7t tr\u0103ng l\u00e0 vonfram. Vonfram l\u00e0 m\u1ed9t nguy\u00ean t\u1ed1 \u01b0a s\u1eaft c\u00f3 xu h\u01b0\u1edbng ch\u00ecm xu\u1ed1ng l\u00f5i c\u1ee7a c\u00e1c h\u00e0nh tinh. Do \u0111\u00f3, M\u1eb7t tr\u0103ng v\u00e0 Tr\u00e1i \u0111\u1ea5t ph\u1ea3i c\u00f3 l\u01b0\u1ee3ng vonfram r\u1ea5t kh\u00e1c nhau v\u00ec l\u1edbp ph\u1ee7 gi\u00e0u vonfram c\u1ee7a Theia \u0111\u00e3 \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u00e0o M\u1eb7t tr\u0103ng trong v\u1ee5 va ch\u1ea1m.<\/p>\n\n

S\u1ef1 t\u01b0\u01a1ng \u0111\u1ed3ng v\u1ec1 \u0111\u1ed3ng v\u1ecb<\/h2>\n\n

Hai nghi\u00ean c\u1ee9u \u0111\u1ed9c l\u1eadp \u0111\u00e3 ki\u1ec3m tra t\u1ef7 l\u1ec7 c\u1ee7a hai \u0111\u1ed3ng v\u1ecb vonfram trong \u0111\u00e1 M\u1eb7t tr\u0103ng v\u00e0 m\u1eabu Tr\u00e1i \u0111\u1ea5t. H\u1ecd ph\u00e1t hi\u1ec7n ra r\u1eb1ng \u0111\u00e1 M\u1eb7t tr\u0103ng c\u00f3 nhi\u1ec1u vonfram-182 h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi Tr\u00e1i \u0111\u1ea5t, m\u1ed9t ph\u00e1t hi\u1ec7n th\u00fa v\u1ecb v\u00ec vonfram-182 \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi qu\u00e1 tr\u00ecnh ph\u00e2n r\u00e3 ph\u00f3ng x\u1ea1 c\u1ee7a hafni-182, c\u00f3 th\u1eddi gian b\u00e1n h\u1ee7y ng\u1eafn.<\/p>\n\n

Gi\u1ea3 thuy\u1ebft l\u1edbp ph\u1ee7 tr\u1ec5<\/h2>\n\n

Gi\u1ea3i ph\u00e1p \u0111\u01a1n gi\u1ea3n nh\u1ea5t cho c\u00e2u \u0111\u1ed1 vonfram l\u00e0 gi\u1ea3 thuy\u1ebft l\u1edbp ph\u1ee7 tr\u1ec5. Gi\u1ea3 thuy\u1ebft n\u00e0y cho r\u1eb1ng Tr\u00e1i \u0111\u1ea5t v\u00e0 ti\u1ec1n M\u1eb7t tr\u0103ng ban \u0111\u1ea7u c\u00f3 t\u1ef7 l\u1ec7 \u0111\u1ed3ng v\u1ecb vonfram t\u01b0\u01a1ng t\u1ef1 nhau. Tuy nhi\u00ean, Tr\u00e1i \u0111\u1ea5t, l\u1edbn h\u01a1n v\u00e0 c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn h\u01a1n, v\u1eabn ti\u1ebfp t\u1ee5c thu h\u00fat c\u00e1c h\u00e0nh tinh nh\u1ecf sau v\u1ee5 va ch\u1ea1m, b\u1ed5 sung v\u1eadt ch\u1ea5t m\u1edbi v\u00e0o l\u1edbp ph\u1ee7 c\u1ee7a m\u00ecnh. L\u1edbp ph\u1ee7 tr\u1ec5 n\u00e0y s\u1ebd c\u00f3 nhi\u1ec1u vonfram-184 h\u01a1n so v\u1edbi vonfram-182, trong khi M\u1eb7t tr\u0103ng v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c t\u1ef7 l\u1ec7 t\u1eeb v\u1ee5 va ch\u1ea1m.<\/p>\n\n

B\u1eb1ng ch\u1ee9ng cho l\u1edbp ph\u1ee7 tr\u1ec5<\/h2>\n\n

Gi\u1ea3 thuy\u1ebft l\u1edbp ph\u1ee7 tr\u1ec5 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi th\u1ef1c t\u1ebf l\u00e0 Tr\u00e1i \u0111\u1ea5t c\u00f3 nhi\u1ec1u nguy\u00ean t\u1ed1 \u01b0a s\u1eaft (nguy\u00ean t\u1ed1 \u01b0a s\u1eaft) trong l\u1edbp ph\u1ee7 c\u1ee7a m\u00ecnh h\u01a1n d\u1ef1 ki\u1ebfn. Nh\u1eefng nguy\u00ean t\u1ed1 n\u00e0y \u0111\u00e1ng l\u1ebd ph\u1ea3i ch\u00ecm xu\u1ed1ng l\u00f5i nh\u01b0ng h\u1eb3n \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u01b0a \u0111\u1ebfn Tr\u00e1i \u0111\u1ea5t sau khi l\u00f5i h\u00ecnh th\u00e0nh do c\u00e1c v\u1ee5 va ch\u1ea1m thi\u00ean th\u1ea1ch.<\/p>\n\n

S\u1ef1 t\u01b0\u01a1ng \u0111\u1ed3ng c\u1ee7a t\u1ef7 l\u1ec7 \u0111\u1ed3ng v\u1ecb vonfram<\/h2>\n\n

\u0110\u1ec3 ti\u1ec1n M\u1eb7t tr\u0103ng kh\u1edbp v\u1edbi t\u1ef7 l\u1ec7 vonfram c\u1ee7a Tr\u00e1i \u0111\u1ea5t, Theia v\u00e0 Tr\u00e1i \u0111\u1ea5t h\u1eb3n ph\u1ea3i b\u1eaft \u0111\u1ea7u v\u1edbi h\u00e0m l\u01b0\u1ee3ng vonfram r\u1ea5t gi\u1ed1ng nhau. \u0110\u1ec3 gi\u1ea3i quy\u1ebft c\u00e2u \u0111\u1ed1 n\u00e0y s\u1ebd c\u1ea7n c\u00e1c nghi\u00ean c\u1ee9u h\u00e0nh tinh s\u00e2u h\u01a1n, nh\u01b0ng c\u00e2u chuy\u1ec7n v\u1ec1 ngu\u1ed3n g\u1ed1c c\u1ee7a M\u1eb7t tr\u0103ng \u0111ang tr\u1edf n\u00ean r\u00f5 r\u00e0ng h\u01a1n.<\/p>\n\n

Vai tr\u00f2 c\u1ee7a c\u00e1c h\u00e0nh tinh nh\u1ecf trong qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh M\u1eb7t tr\u0103ng<\/h2>\n\n

C\u00e1c m\u00f4 ph\u1ecfng \u0111\u00e3 ch\u1ec9 ra r\u1eb1ng c\u00e1c v\u1ee5 va ch\u1ea1m l\u1edbn c\u00f3 nhi\u1ec1u kh\u1ea3 n\u0103ng x\u1ea3y ra h\u01a1n gi\u1eefa c\u00e1c v\u1eadt th\u1ec3 h\u00ecnh th\u00e0nh g\u1ea7n nhau v\u00e0 do \u0111\u00f3 c\u00f3 th\u00e0nh ph\u1ea7n t\u01b0\u01a1ng t\u1ef1. \u0110i\u1ec1u n\u00e0y \u1ee7ng h\u1ed9 \u00fd t\u01b0\u1edfng r\u1eb1ng Theia h\u00ecnh th\u00e0nh t\u01b0\u01a1ng \u0111\u1ed1i g\u1ea7n Tr\u00e1i \u0111\u1ea5t.<\/p>\n\n

C\u00e1c h\u00e0nh tinh nh\u1ecf v\u00e0 l\u1edbp ph\u1ee7 tr\u1ec5<\/h2>\n\n

C\u00e1c h\u00e0nh tinh nh\u1ecf ti\u1ebfp t\u1ee5c b\u1eafn ph\u00e1 h\u1ec7 m\u1eb7t tr\u1eddi non tr\u1ebb sau khi M\u1eb7t tr\u0103ng h\u00ecnh th\u00e0nh. Tr\u00e1i \u0111\u1ea5t \u0111\u00e3 thu \u0111\u01b0\u1ee3c nhi\u1ec1u v\u1eadt li\u1ec7u l\u1edbp ph\u1ee7 tr\u1ec5 n\u00e0y h\u01a1n M\u1eb7t tr\u0103ng, g\u00f3p ph\u1ea7n h\u01a1n n\u1eefa v\u00e0o s\u1ef1 kh\u00e1c bi\u1ec7t trong th\u00e0nh ph\u1ea7n c\u1ee7a ch\u00fang.<\/p>","protected":false},"excerpt":{"rendered":"

Ngu\u1ed3n g\u1ed1c M\u1eb7t tr\u0103ng v\u00e0 C\u00e2u \u0111\u1ed1 Vonfram S\u1ef1 h\u00ecnh th\u00e0nh M\u1eb7t tr\u0103ng Theo gi\u1ea3 thuy\u1ebft va ch\u1ea1m l\u1edbn \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn r\u1ed9ng r\u00e3i, M\u1eb7t tr\u0103ng \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh c\u00e1ch…<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[437],"tags":[1446,20512,1173,21113,19009,19008,896,21115,2716,21116,21114],"class_list":["post-15898","post","type-post","status-publish","format-standard","hentry","category-astronomy","tag-planets","tag-isotopes","tag-solar-system","tag-impact","tag-core","tag-mantle","tag-moon","tag-planetesimals","tag-earth","tag-late-veneer","tag-tungsten"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/15898","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\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=15898"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/15898\/revisions"}],"predecessor-version":[{"id":15899,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/15898\/revisions\/15899"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=15898"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=15898"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=15898"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}