{"id":65,"date":"2017-04-12T16:22:15","date_gmt":"2017-04-12T19:22:15","guid":{"rendered":"http:\/\/wims.wordpress\/?page_id=65"},"modified":"2017-05-08T16:52:23","modified_gmt":"2017-05-08T19:52:23","slug":"highlight","status":"publish","type":"page","link":"https:\/\/wims.igc.usp.br\/?page_id=65&lang=en","title":{"rendered":"Highlight"},"content":{"rendered":"<h2>Very old stromatolites &#8211; evidence of very old life and waters at 3.7 billion years, LA-ICP-MS &#8211; SIMS<\/h2>\n<p>At\u00a0Greenland, Earth&#8217;s oldest stromatolites were found (Nutman, 2016, Nature 537). Data from the U and Pb (geochronology) isotopes obtained by mass spectrometry indicated that the formation of these stromatolites occurred at 3.7 billion years ago and additional chemical analyzes show signatures consistent with a biological origin (microorganism). There is some controversy in the scientific community about the existence of these archean (&gt;2.5 Ga) microorganisms, since few stromatolites contain fossilized microorganisms but information about the presence of water and the technique of dating by U-Pb geochronological method by means of mass spectrometry are extremely safe. (Keynote speaker: Allen P. Nutman).<\/p>\n<blockquote><p>&nbsp;<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>Very old stromatolites &#8211; evidence of very old life and waters at 3.7 billion years, LA-ICP-MS &#8211; SIMS At\u00a0Greenland, Earth&#8217;s oldest stromatolites were found (Nutman, 2016, Nature 537). Data from the U and Pb (geochronology) isotopes obtained by mass spectrometry indicated that the formation of these stromatolites occurred at 3.7 billion years ago and additional [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-65","page","type-page","status-publish","hentry"],"publishpress_future_action":{"enabled":false,"date":"2026-05-24 09:36:21","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"language","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/wims.igc.usp.br\/index.php?rest_route=\/wp\/v2\/pages\/65","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wims.igc.usp.br\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wims.igc.usp.br\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wims.igc.usp.br\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wims.igc.usp.br\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=65"}],"version-history":[{"count":4,"href":"https:\/\/wims.igc.usp.br\/index.php?rest_route=\/wp\/v2\/pages\/65\/revisions"}],"predecessor-version":[{"id":110,"href":"https:\/\/wims.igc.usp.br\/index.php?rest_route=\/wp\/v2\/pages\/65\/revisions\/110"}],"wp:attachment":[{"href":"https:\/\/wims.igc.usp.br\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=65"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}