{"id":10192,"date":"2016-10-13T21:10:01","date_gmt":"2016-10-13T19:10:01","guid":{"rendered":"http:\/\/karmaka.de\/?p=10192"},"modified":"2016-10-13T21:10:01","modified_gmt":"2016-10-13T19:10:01","slug":"impact-ejecta-at-the-paleocene-eocene-boundary","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=10192","title":{"rendered":"Impact ejecta at the Paleocene-Eocene boundary"},"content":{"rendered":"<p>Morgan F. Schaller, Megan K. Fung, James D. Wright, Miriam E. Katz, Dennis V. Kent<\/p>\n<p>Science  14 Oct 2016:<br \/>\nVol. 354, Issue 6309, pp. 225-229<br \/>\nDOI: 10.1126\/science.aaf5466 <\/p>\n<p><a href=\"http:\/\/science.sciencemag.org\/content\/354\/6309\/225\" target=\"_blank\"><strong>LINK<\/strong><\/a><\/p>\n<p>&#8220;Extraterrestrial impacts have left a substantial imprint on the climate and evolutionary history of Earth. A rapid carbon cycle perturbation and global warming event about 56 million years ago at the Paleocene-Eocene (P-E) boundary (the Paleocene-Eocene Thermal Maximum) was accompanied by rapid expansions of mammals and terrestrial plants and extinctions of deep-sea benthic organisms. Here, we report the discovery of silicate glass spherules in a discrete stratigraphic layer from three marine P-E boundary sections on the Atlantic margin. Distinct characteristics identify the spherules as microtektites and microkrystites, indicating that an extraterrestrial impact occurred during the carbon isotope excursion at the P-E boundary.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Morgan F. Schaller, Megan K. Fung, James D. Wright, Miriam E. Katz, Dennis V. Kent Science 14 Oct 2016: Vol. 354, Issue 6309, pp. 225-229 DOI: 10.1126\/science.aaf5466 LINK &#8220;Extraterrestrial impacts have left a substantial imprint&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[90,3296],"tags":[313,2837,3333,3332,3330,3331,3334],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/10192"}],"collection":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10192"}],"version-history":[{"count":1,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/10192\/revisions"}],"predecessor-version":[{"id":10193,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/10192\/revisions\/10193"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10192"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10192"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10192"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}