{"id":29385,"date":"2021-11-01T10:35:46","date_gmt":"2021-11-01T08:35:46","guid":{"rendered":"https:\/\/karmaka.de\/?p=29385"},"modified":"2021-11-01T11:55:29","modified_gmt":"2021-11-01T09:55:29","slug":"late-accretionary-history-of-earth-and-moon-preserved-in-lunar-impactites","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=29385","title":{"rendered":"Late accretionary history of Earth and Moon preserved in lunar impactites<span class=\"badge-status\" style=\"background:#787878\">OPEN ACCESS<\/span>&nbsp;"},"content":{"rendered":"\n<p>Emily A. Worsham and Thorsten Kleine<\/p>\n\n\n\n<p>Science Advances \u2022 29 Oct 2021 \u2022 Vol 7, Issue 44<\/p>\n\n\n\n<p><a href=\"https:\/\/www.science.org\/doi\/10.1126\/sciadv.abh2837\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>LINK (OPEN ACCESS)<\/strong><\/a><br><a href=\"https:\/\/www.science.org\/doi\/epdf\/10.1126\/sciadv.abh2837\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>PDF (OPEN ACCESS)<\/strong><\/a><\/p>\n\n\n\n<p><a rel=\"noreferrer noopener\" href=\"https:\/\/www.science.org\/doi\/suppl\/10.1126\/sciadv.abh2837\/suppl_file\/sciadv.abh2837_sm.pdf\" target=\"_blank\"><strong>Supplementary materials (PDF)<\/strong><\/a><\/p>\n\n\n\n<p class=\"justify-text\">&#8220;Late accretion describes the final addition of Earth\u2019s mass following Moon formation and includes a period of Late Heavy Bombardment (LHB), which occurred either as a short-lived cataclysm triggered by a late giant planet orbital instability or a declining bombardment during late accretion. Using genetically characteristic ruthenium and molybdenum isotope compositions of lunar impact\u2013derived rocks, we show that the impactors during the LHB and the entire period of late accretion were the same type of bodies and that they originated in the terrestrial planet region. Because a cataclysmic LHB would have, in part, resulted in compositionally distinct projectiles, we conclude that the LHB reflects the tail end of accretion. This implies that the giant planet orbital instability occurred during the main phase of planet formation. Last, because of their inner solar system origin, late-accreted bodies cannot be the primary source of Earth\u2019s water.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Emily A. Worsham and Thorsten Kleine Science Advances \u2022 29 Oct 2021 \u2022 Vol 7, Issue 44 LINK (OPEN ACCESS)PDF (OPEN ACCESS) Supplementary materials (PDF) &#8220;Late accretion describes the final addition of Earth\u2019s mass following&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[131,72,112,41,115,71],"tags":[1939,80,2001,2651,2207,2888,641,1866,1827,2209,3453,3930,6148,4500,5372,1855],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/29385"}],"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=29385"}],"version-history":[{"count":4,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/29385\/revisions"}],"predecessor-version":[{"id":29391,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/29385\/revisions\/29391"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=29385"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=29385"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=29385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}