{"id":138905,"date":"2014-02-25T21:14:09","date_gmt":"2014-02-25T20:14:09","guid":{"rendered":"http:\/\/www.pcnen.com\/portal\/?p=138905"},"modified":"2014-02-26T08:32:52","modified_gmt":"2014-02-26T07:32:52","slug":"najstariji-djelic-zemljine-kore-naden-na-farmi-ovaca","status":"publish","type":"post","link":"https:\/\/www.pcnen.com\/portal\/2014\/02\/25\/najstariji-djelic-zemljine-kore-naden-na-farmi-ovaca\/","title":{"rendered":"Najstariji djeli\u0107 zemljine kore na\u0111en na farmi ovaca"},"content":{"rendered":"<p>Si\u0107u\u0161ni cirkon prona\u0111en na farmi ovaca na zapadu Australije, najstariji je do sada poznati komad kristala na na\u0161oj planeti, a starost mu se procijenjuje na 4,4 milijarde godina, objavljeno je u \u010dasopisu <a href=\"http:\/\/www.nature.com\/ngeo\/journal\/vaop\/ncurrent\/full\/ngeo2075.html\" target=\"_blank\">Nature Geoscience<\/a>, a prenosi <a href=\"http:\/\/www.bbc.co.uk\/news\/science-environment-26324968\" target=\"_blank\">BBC.<\/a><\/p>\n<p>John Valley, profesor geologije sa Univerziteta Viskonsin i njegov tim, koristili su dvije razli\u010dite tehnike utvr\u0111ivanja starosti, koje su pokazale da su se kristali na Zemlji formirali ubrzo nakon formiranja njene kora, a si\u0107u\u0161ni cirkon je upravo ostatak iz tog doba.<\/p>\n<p>Profesor Valley ka\u017ee da ovo saznanje ide u prilog ideje da je Zemlja u svojim po\u010decima bila hladna a temperature dovoljno niske da se odr\u017ee okeani, mo\u017eda i neki oblici \u017eivota.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Si\u0107u\u0161ni cirkon prona\u0111en na farmi ovaca na zapadu Australije, najstariji je do sada poznati komad kristala na na\u0161oj planeti, a starost mu se procijenjuje na 4,4 milijarde godina, objavljeno je u \u010dasopisu Nature Geoscience&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","inline_featured_image":false,"footnotes":""},"categories":[14],"tags":[],"class_list":["post-138905","post","type-post","status-publish","format-standard","hentry","category-vijesti"],"_links":{"self":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts\/138905","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/comments?post=138905"}],"version-history":[{"count":0,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts\/138905\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/media?parent=138905"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/categories?post=138905"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/tags?post=138905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}