{"id":30707,"date":"2022-06-16T23:22:49","date_gmt":"2022-06-16T21:22:49","guid":{"rendered":"https:\/\/karmaka.de\/?p=30707"},"modified":"2022-06-16T23:24:20","modified_gmt":"2022-06-16T21:24:20","slug":"krypton-in-the-chassigny-meteorite-shows-mars-accreted-chondritic-volatiles-before-nebular-gases","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=30707","title":{"rendered":"Krypton in the Chassigny meteorite shows Mars accreted chondritic volatiles before nebular gases"},"content":{"rendered":"\n<p>Sandrine P\u00e9ron and Sujoy Mukhopadhyay<\/p>\n\n\n\n<p>Science, 16 Jun 2022<\/p>\n\n\n\n<p><a href=\"https:\/\/www.science.org\/doi\/10.1126\/science.abk1175\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>LINK<\/strong><\/a><\/p>\n\n\n\n<p><a rel=\"noreferrer noopener\" href=\"https:\/\/www.science.org\/action\/downloadSupplement?doi=10.1126%2Fscience.abk1175&amp;file=science.abk1175_sm.pdf\" target=\"_blank\"><strong>Supplementary Materials (DOWNLOAD)<\/strong><\/a><\/p>\n\n\n\n<p class=\"justify-text\">&#8220;Volatile chemical elements are thought to have been delivered to Solar System terrestrial planets late in their formation, by accretion of chondritic meteorites. Mars can provide information on inner Solar System volatile delivery during the earliest planet formation stages. We measured krypton isotopes in the Martian meteorite Chassigny, representative of the planet\u2019s interior. We find chondritic krypton isotope ratios, implying early incorporation of chondritic volatiles. Mars\u2019 atmosphere has different (solar-type) krypton isotope ratios, indicating it is not a product of magma ocean outgassing or fractionation of interior volatiles. Atmospheric krypton instead originates from accretion of solar nebula gas, after the mantle formed, but prior to nebular dissipation. Our observations contradict the common hypothesis that, during planet formation, chondritic volatile delivery occurred after solar gas acquisition.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sandrine P\u00e9ron and Sujoy Mukhopadhyay Science, 16 Jun 2022 LINK Supplementary Materials (DOWNLOAD) &#8220;Volatile chemical elements are thought to have been delivered to Solar System terrestrial planets late in their formation, by accretion of chondritic&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45,122,42],"tags":[1831,1120,4659,3060],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/30707"}],"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=30707"}],"version-history":[{"count":1,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/30707\/revisions"}],"predecessor-version":[{"id":30708,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/30707\/revisions\/30708"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=30707"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=30707"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=30707"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}