{"id":50592,"date":"2019-05-31T11:18:29","date_gmt":"2019-05-31T08:18:29","guid":{"rendered":"http:\/\/realitatearutiera.ro\/?p=50592"},"modified":"2019-05-31T11:18:34","modified_gmt":"2019-05-31T08:18:34","slug":"aceasta-apa-are-20-000-de-ani-si-nu-a-mai-fost-folosita-de-la-ultima-epoca-glaciara","status":"publish","type":"post","link":"https:\/\/realitatearutiera.ro\/?p=50592","title":{"rendered":"Aceast\u0103 ap\u0103 are 20.000 de ani \u015fi nu a mai fost folosit\u0103 de la ultima epoc\u0103 glaciar\u0103"},"content":{"rendered":"\n

Cercet\u0103torii au cercetat diferitele perioade geologice cu ajutorul rocilor \u015fi al fosilelor, dar, cu ajutorul unor mostre de ap\u0103 ob\u0163iunute din roci identificate \u00een Oceanul Indian, oamenii de \u015ftiin\u0163\u0103 pot afla mai multe despre ultima epoc\u0103 glaciar\u0103.<\/p>\n\n\n\n

Ultima mare glacia\u0163iune a \u00eenceput \u00een urm\u0103 cu 100.000 de ani \u015fi s-a sf\u00e2r\u015fit abia \u00een urm\u0103 cu 20.000 de ani. \u00cen aceast\u0103 perioad\u0103, mare parte a emisferei nordice s-a aflat sub un strat gros de ghea\u0163\u0103. Aceasta cuprinde suprafe\u0163e extinse din Europa, Asia \u015fi America de Nord.<\/p>\n\n\n\n

Pentru a cerceta aceast\u0103 perioad\u0103, oamenii de \u015ftiin\u0163\u0103 au apelat la studiul coralilor, sedimentelor de la fundul m\u0103rii sau forma\u0163iuni st\u00e2ncoase. O descoperire neobi\u015fnuit\u0103 a fost realizat\u0103 \u00een una dintre aceste forma\u0163iuni st\u00e2ncoase, mai exact o echip\u0103 de cercet\u0103tori a reu\u015fit s\u0103 ob\u0163in\u0103 mostre de ap\u0103 din urm\u0103 cu 20.000 de ani, noteaz\u0103 Live Science<\/a>.<\/p>\n\n\n\n

Conform unui studiu publicat recent \u00een Geochimica et Cosmochimica Acta<\/em>, mostrele identificate prezint\u0103 aceea\u015fi compozi\u0163ie chimic\u0103 precum oceanul din perioada ultimei ere glaciare<\/a>.<\/p>\n\n\n\n

Echipa de cercet\u0103tori a identificat apa preistoric\u0103 \u00een timpul unor s\u0103p\u0103turi dup\u0103 sedimente \u00een arhipelagul Maldive din Asia de Sud. Dup\u0103 analiza apei extrase din rocile de pe fundul m\u0103rii, oamenii de \u015ftiin\u0163\u0103 au aflat c\u0103 aceasta era mult mai s\u0103rat\u0103 dec\u00e2t apa din Oceanul Indian. De asemenea, dup\u0103 testarea diferi\u0163ilor izotopi, a rezultat c\u0103 mostrele nu \u00ee\u015fi avea locul \u00een oceanele moderne.<\/p>\n\n\n\n

Analizele sugereaz\u0103 c\u0103 apa provine dintr-o perioad\u0103 c\u00e2nd apa oceanic\u0103 era mai rece \u015fi prezenta cantit\u0103\u0163i mai mari de sare, respectiv cloruri. Aceste caracterisitici au mai fost \u00eent\u00e2lnite \u00een timpul ultimei glacia\u0163iuni.<\/p>\n\n\n\n

sursa: descopera.ro<\/p>\n\n\n\n

\n\nCredit foto: Jean Lachat   \n\n<\/p>\n","protected":false},"excerpt":{"rendered":"

Cercet\u0103torii au cercetat diferitele perioade geologice cu ajutorul rocilor \u015fi al fosilelor, dar, cu ajutorul unor mostre de ap\u0103 ob\u0163iunute<\/p>\n","protected":false},"author":1,"featured_media":50593,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","footnotes":"","jetpack_publicize_message":""},"categories":[12],"tags":[],"class_list":["post-50592","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-stiri-internationale"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/realitatearutiera.ro\/wp-content\/uploads\/2019\/05\/apa-epoca-de-gheata-jean-lachat-descopera11.png?fit=618%2C357&ssl=1","jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p61naM-da0","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts\/50592","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=50592"}],"version-history":[{"count":1,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts\/50592\/revisions"}],"predecessor-version":[{"id":50594,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts\/50592\/revisions\/50594"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/media\/50593"}],"wp:attachment":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=50592"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=50592"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=50592"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}