{"id":9713,"date":"2014-06-17T07:43:29","date_gmt":"2014-06-17T14:43:29","guid":{"rendered":"http:\/\/planets.ucla.edu\/?p=9713"},"modified":"2021-01-18T01:34:55","modified_gmt":"2021-01-18T09:34:55","slug":"siberian-crater-may-have-caused-eocene-extinction","status":"publish","type":"post","link":"http:\/\/planets.ucla.edu\/?p=9713","title":{"rendered":"Siberian crater impact may have caused Eocene extinction"},"content":{"rendered":"<p><a href=\"http:\/\/planets.ucla.edu\/wp-content\/uploads\/2014\/06\/Popigai_crater_russia.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-9714 alignleft\" alt=\"Popigai_crater_russia\" src=\"http:\/\/planets.ucla.edu\/wp-content\/uploads\/2014\/06\/Popigai_crater_russia-269x300.jpg\" width=\"269\" height=\"300\" srcset=\"http:\/\/planets.ucla.edu\/wp-content\/uploads\/2014\/06\/Popigai_crater_russia-269x300.jpg 269w, http:\/\/planets.ucla.edu\/wp-content\/uploads\/2014\/06\/Popigai_crater_russia.jpg 500w\" sizes=\"auto, (max-width: 269px) 100vw, 269px\" \/><\/a>The meteor impact that caused Russia&#8217;s Popigai crater located in Siberia may be the cause the Eocene mass extinction event that occurred just over 33 million years ago.\u00a0 By measuring certain isotopes within rock samples from the Eocene period, iPLEX graduate student Matt Wielicki able to tie a short-lived, rapid cooling period in global climate to around the same time that the Popigai crater, one of the ten largest impact craters on Earth, was formed.\u00a0 The rapid onset of colder temperatures could be explained by a large quantity of reflecting particulates being launched into Earth&#8217;s atmosphere during the impact that blocked out the Sun.\u00a0 During this period, many aquatic species went extinct including the earliest types of toothed whales and many types of sea urchins and snails.<\/p>\n<p>To learn more about this discovery, visit <a href=\"http:\/\/m.livescience.com\/46312-popigai-crater-linked-eocene-mass-extinction.html?utm_source=feedburner&amp;utm_medium=feed&amp;utm_campaign=Feed%253A+Livesciencecom+%2528LiveScience.com+Science+Headline+Feed%2529\">Livescience<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The meteor impact that caused Russia&#8217;s Popigai crater located in Siberia may be the cause the Eocene mass extinction event that occurred just over 33 million years ago.\u00a0 By measuring certain isotopes within rock samples from the Eocene period, iPLEX graduate student Matt Wielicki able to tie a short-lived, rapid cooling period in global climate &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/planets.ucla.edu\/?p=9713\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Siberian crater impact may have caused Eocene extinction&#8221;<\/span><\/a><\/p>\n","protected":false},"author":9,"featured_media":9714,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[],"class_list":["post-9713","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"_links":{"self":[{"href":"http:\/\/planets.ucla.edu\/index.php?rest_route=\/wp\/v2\/posts\/9713","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/planets.ucla.edu\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/planets.ucla.edu\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/planets.ucla.edu\/index.php?rest_route=\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"http:\/\/planets.ucla.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9713"}],"version-history":[{"count":2,"href":"http:\/\/planets.ucla.edu\/index.php?rest_route=\/wp\/v2\/posts\/9713\/revisions"}],"predecessor-version":[{"id":9716,"href":"http:\/\/planets.ucla.edu\/index.php?rest_route=\/wp\/v2\/posts\/9713\/revisions\/9716"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/planets.ucla.edu\/index.php?rest_route=\/wp\/v2\/media\/9714"}],"wp:attachment":[{"href":"http:\/\/planets.ucla.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9713"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/planets.ucla.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9713"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/planets.ucla.edu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9713"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}