{"id":28100,"date":"2021-06-18T23:17:48","date_gmt":"2021-06-18T21:17:48","guid":{"rendered":"https:\/\/karmaka.de\/?p=28100"},"modified":"2021-06-18T23:19:45","modified_gmt":"2021-06-18T21:19:45","slug":"the-boltysh-impact-structure-an-early-danian-impact-event-during-recovery-from-the-k-pg-mass-extinction","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=28100","title":{"rendered":"The Boltysh impact structure: An early Danian impact event during recovery from the K-Pg mass extinction<span class=\"badge-status\" style=\"background:#787878\">OPEN ACCESS<\/span>&nbsp;"},"content":{"rendered":"\n<p>Annemarie E. Pickersgill, Darren F. Mark, Martin R. Lee, Simon P. Kelley, David W. Jolley<\/p>\n\n\n\n<p>Science Advances 18 Jun 2021:<br>Vol. 7, no. 25<\/p>\n\n\n\n<p><a href=\"https:\/\/advances.sciencemag.org\/content\/7\/25\/eabe6530\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>LINK (OPEN ACCESS)<\/strong><\/a><br><a href=\"https:\/\/advances.sciencemag.org\/content\/advances\/7\/25\/eabe6530.full.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>PDF (OPEN ACCESS)<\/strong><\/a><\/p>\n\n\n\n<p class=\"justify-text\">&#8220;Both the Chicxulub and Boltysh impact events are associated with the K-Pg boundary. While Chicxulub is firmly linked to the end-Cretaceous mass extinction, the temporal relationship of the ~24-km-diameter Boltysh impact to these events is uncertain, although it is thought to have occurred 2 to 5 ka before the mass extinction. Here, we conduct the first direct geochronological comparison of Boltysh to the K-Pg boundary. Our 40Ar\/39Ar age of 65.39 \u00b1 0.14\/0.16 Ma shows that the impact occurred ~0.65 Ma after the mass extinction. At that time, the climate was recovering from the effects of the Chicxulub impact and Deccan trap flood volcanism. This age shows that Boltysh has a close temporal association with the Lower C29n hyperthermal recorded by global sediment archives and in the Boltysh crater lake sediments. The temporal coincidence raises the possibility that even a small impact event could disrupt recovery of the Earth system from catastrophic events.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Annemarie E. Pickersgill, Darren F. Mark, Martin R. Lee, Simon P. Kelley, David W. Jolley Science Advances 18 Jun 2021:Vol. 7, no. 25 LINK (OPEN ACCESS)PDF (OPEN ACCESS) &#8220;Both the Chicxulub and Boltysh impact events&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[90],"tags":[1444,2881],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/28100"}],"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=28100"}],"version-history":[{"count":1,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/28100\/revisions"}],"predecessor-version":[{"id":28101,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/28100\/revisions\/28101"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=28100"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28100"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28100"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}