{"id":677654,"date":"2026-02-19T10:46:04","date_gmt":"2026-02-19T10:46:04","guid":{"rendered":"https:\/\/microscopemedia.com\/?p=677654"},"modified":"2026-02-19T10:46:04","modified_gmt":"2026-02-19T10:46:04","slug":"oamenii-de-stiinta-au-descifrat-misterul-gropii-gravitationale-din-antarctica","status":"publish","type":"post","link":"https:\/\/microscopemedia.com\/?p=677654","title":{"rendered":"Oamenii de \u0219tiin\u021b\u0103 au descifrat misterul \u201egropii gravita\u021bionale\u201d din Antarctica"},"content":{"rendered":"
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Cercet\u0103torii spun c\u0103 au descifrat misterul din spatele neobi\u0219nuitei \u201egropi gravita\u021bionale\u201d din Antarctica. Noile studii leag\u0103 aceast\u0103 sc\u0103dere ciudat\u0103 a gravita\u021biei de mi\u0219c\u0103rile lente ale rocilor din ad\u00e2ncul planetei, scrie SciTechDaily<\/a><\/span>.<\/p>\n

Gravita\u021bia nu este uniform\u0103 la suprafa\u021ba P\u0103m\u00e2ntului. Dup\u0103 ce este luat\u0103 \u00een calcul rota\u021bia Terrei, cel mai slab punct gravita\u021bional se afl\u0103 sub Antarctica<\/a><\/span>.<\/p>\n

Cercet\u0103torii au descoperit c\u0103 aceast\u0103 zon\u0103 cu gravita\u021bie sc\u0103zut\u0103 s-a format de-a lungul a zeci de milioane de ani. Schimb\u0103rile au fost determinate de deplasarea maselor de roc\u0103 aflate mult sub suprafa\u021b\u0103.<\/p>\n

Cum modeleaz\u0103 mi\u0219c\u0103rile rocilor din ad\u00e2nc gravita\u021bia<\/h2>\n

Diferen\u021bele de gravita\u021bie provin din varia\u021biile densit\u0103\u021bii rocilor din subteran.
Regiunile mai dense genereaz\u0103 o gravita\u021bie mai puternic\u0103, \u00een timp ce zonele mai u\u0219oare exercit\u0103 o atrac\u021bie mai slab\u0103.<\/p>\n

Apa se deplaseaz\u0103 \u00een mod natural c\u0103tre zonele cu gravita\u021bie mai mare. Acolo unde gravita\u021bia este mai redus\u0103, nivelul m\u0103rii este u\u0219or mai sc\u0103zut raportat la centrul P\u0103m\u00e2ntului.<\/p>\n

\u00cen jurul Antarcticii, acest efect produce o sc\u0103dere m\u0103surabil\u0103 a nivelului suprafe\u021bei oceanului. Cercet\u0103torii spun c\u0103 \u0219i varia\u021biile subtile ale gravita\u021biei pot influen\u021ba distribu\u021bia oceanelor.<\/p>\n

Rezultatele au fost publicate \u00een revista Scientific Reports. Echipa a folosit date seismice \u0219i modele computerizate bazate pe legile fizicii pentru a cartografia interiorul P\u0103m\u00e2ntului.<\/p>\n

Undele seismice au ajutat la reconstruirea structurii profunde a planetei. Modelele au coincis \u00eendeaproape cu m\u0103sur\u0103torile satelitare ale gravita\u021biei, confirm\u00e2nd acurate\u021bea lor.<\/p>\n

Reconstruc\u021bia a 70 de milioane de ani de schimb\u0103ri<\/h2>\n

Cercet\u0103torii au urm\u0103rit evolu\u021bia \u201egropii gravita\u021bionale\u201d p\u00e2n\u0103 acum 70 de milioane de ani. Simul\u0103rile avansate au ar\u0103tat c\u0103 fenomenul era mult mai pu\u021bin pronun\u021bat \u00een trecut.<\/p>\n

\u00centre 50 \u0219i 30 de milioane de ani \u00een urm\u0103, zona cu gravita\u021bie sc\u0103zut\u0103 s-a intensificat. Aceast\u0103 perioad\u0103 a coincis cu schimb\u0103ri climatice majore \u0219i cu \u00eenceputul glacia\u021biunii extinse \u00een Antarctica.<\/p>\n

Oamenii de \u0219tiin\u021b\u0103 vor s\u0103 afle dac\u0103 modific\u0103rile gravita\u021biei au influen\u021bat formarea calotelor glaciare. Studiul ar putea clarifica \u0219i leg\u0103turile dintre interiorul P\u0103m\u00e2ntului, nivelul m\u0103rii \u0219i sistemele climatice.<\/p>\n

Exper\u021bii spun c\u0103 \u00een\u021belegerea acestor procese ar putea \u00eembun\u0103t\u0103\u021bi prognozele climatice pe termen lung.<\/p>\n","protected":false},"excerpt":{"rendered":"

Cercet\u0103torii spun c\u0103 au descifrat misterul din spatele neobi\u0219nuitei \u201egropi gravita\u021bionale\u201d din Antarctica. Noile studii leag\u0103 aceast\u0103 sc\u0103dere ciudat\u0103 a gravita\u021biei de mi\u0219c\u0103rile lente ale rocilor din ad\u00e2ncul planetei, scrie … Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":677655,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"Default","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts\/677654"}],"collection":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=677654"}],"version-history":[{"count":0,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts\/677654\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/media\/677655"}],"wp:attachment":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=677654"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=677654"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=677654"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}