{"id":36816,"date":"2024-10-14T08:31:34","date_gmt":"2024-10-14T06:31:34","guid":{"rendered":"https:\/\/karmaka.de\/?p=36816"},"modified":"2024-10-14T08:53:40","modified_gmt":"2024-10-14T06:53:40","slug":"primitive-asteroids-as-a-major-source-of-terrestrial-volatiles","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=36816","title":{"rendered":"Primitive asteroids as a major source of terrestrial volatiles<span class=\"badge-status\" style=\"background:#787878\">OPEN ACCESS<\/span>&nbsp;"},"content":{"rendered":"\n<p>Rayssa Martins, Elin M. Morton, Sven Kuthning, Saskia Goes, Helen M. Williams, and Mark Rehk\u00e4mper<\/p>\n\n\n\n<p>Science Advances<br>11 Oct 2024<br>Vol 10, Issue<\/p>\n\n\n\n<p><a href=\"https:\/\/www.science.org\/doi\/10.1126\/sciadv.ado4121\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>LINK (OPEN ACCESS)<\/strong><\/a><br><a href=\"https:\/\/www.science.org\/doi\/epdf\/10.1126\/sciadv.ado4121\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>PDF (OPEN ACCESS)<\/strong><\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/www.science.org\/doi\/suppl\/10.1126\/sciadv.ado4121\/suppl_file\/sciadv.ado4121_sm.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Supplementary Materials<\/strong><\/a><br><a href=\"https:\/\/www.science.org\/doi\/suppl\/10.1126\/sciadv.ado4121\/suppl_file\/sciadv.ado4121_data_s1.zip\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Other Supplementary Material for this manuscript<\/strong><\/a><\/p>\n\n\n\n<p class=\"justify-text\">&#8220;The origins of Earth\u2019s volatiles are debated. Recent studies showed that meteorites display unique mass-independent isotopic signatures of the volatile element Zn, suggesting that Earth\u2019s Zn originated from materials derived from different regions of the Solar System. However, these studies largely omitted meteorites from the differentiated planetesimals thought to represent the Earth\u2019s building blocks, which underwent melting and substantial volatile loss. Here, we characterize the mass-independent Zn isotope compositions of meteorites from such planetesimals. We incorporate these results in mixing models that aim to reproduce Earth\u2019s abundance and isotope compositions of Zn and other elements. Our results suggest that, while differentiated planetesimals supplied ~70% of Earth\u2019s mass, they provided only ~10% of its Zn. The remaining Zn was supplied by primitive materials that did not experience melting and associated volatile loss. Combined with other findings, our results imply that an unmelted primitive material is likely required to establish the volatile budgets of the terrestrial planets.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Rayssa Martins, Elin M. Morton, Sven Kuthning, Saskia Goes, Helen M. Williams, and Mark Rehk\u00e4mper Science Advances11 Oct 2024Vol 10, Issue LINK (OPEN ACCESS)PDF (OPEN ACCESS) Supplementary MaterialsOther Supplementary Material for this manuscript &#8220;The origins&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30,28,38,9,10,18,112,25,26,17,35,34,371,23,7,27,39],"tags":[2705,1826,4863,2777,105,6723,3152,1817,1813,1823,1822,1881,1682,6725,3707,5409,107,4341,6730,6729,6728,6726,6731,6732,6722,4682,110,6727,6721,6724,245,369,5896,5660],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/36816"}],"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=36816"}],"version-history":[{"count":2,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/36816\/revisions"}],"predecessor-version":[{"id":36818,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/36816\/revisions\/36818"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=36816"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=36816"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=36816"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}