{"id":28030,"date":"2021-06-09T13:31:32","date_gmt":"2021-06-09T11:31:32","guid":{"rendered":"https:\/\/karmaka.de\/?p=28030"},"modified":"2021-06-09T13:32:54","modified_gmt":"2021-06-09T11:32:54","slug":"geochemistry-and-cosmochemistry-of-potassium-stable-isotopes","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=28030","title":{"rendered":"Geochemistry and Cosmochemistry of potassium stable isotopes"},"content":{"rendered":"\n<p>Kun Wang, Weiqiang Li, Shilei Li, Zhen Tian, Piers Koefoed, Xin-Yuan Zheng<\/p>\n\n\n\n<p>INVITED REVIEW<\/p>\n\n\n\n<p>Geochemistry<br>In Press, Journal Pre-proof, Available online 9 June 2021<\/p>\n\n\n\n<p><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0009281921000489\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>LINK<\/strong><\/a><\/p>\n\n\n\n<p class=\"justify-text\">&#8220;Stable potassium isotopes are one of the emerging non-traditional isotope systems enabled in recent years by the advance of Multi-Collector Inductively-Coupled-Plasma Mass-Spectrometry (MC-ICP-MS). In this review, we first summarize the geochemical and cosmochemical properties of K, its major reservoirs, and the analytical methods of K isotopes. Following this, we review recent literature on K isotope applications in the fields of geochemistry and cosmochemistry. [&#8230;]\n\n\n\n<p class=\"justify-text\">Of significant importance to the cosmochemistry community, K is a moderately volatile element with large variations in K\/U ratio observed among chondrites and planetary materials. As this indicates different degrees of volatile depletion, it has become a fundamental chemical signature of both chondritic and planetary bodies. This volatile depletion has been attributed to various processes such as solar nebula condensation, mixing of volatile-rich and -poor reservoirs, planetary accretional volatilization via impacts, and\/or magma ocean degassing. While K isotopes have the potential to distinguish these different processes, the current results are still highly debated. A good correlation between the K isotope compositions of four differentiated bodies (Earth, Mars, Moon, and Vesta) and their masses suggests a ubiquitous volatile depletion mechanism during the formation of the terrestrial planets. It is still unknown whether any of the K isotopic variation among chondrites and differentiated bodies can be attributed to inherited signatures of mass-independent isotopic anomalies.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Kun Wang, Weiqiang Li, Shilei Li, Zhen Tian, Piers Koefoed, Xin-Yuan Zheng INVITED REVIEW GeochemistryIn Press, Journal Pre-proof, Available online 9 June 2021 LINK &#8220;Stable potassium isotopes are one of the emerging non-traditional isotope systems&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1598,7,73],"tags":[5103,5966,1527,1235,3236,2992],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/28030"}],"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=28030"}],"version-history":[{"count":1,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/28030\/revisions"}],"predecessor-version":[{"id":28031,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/28030\/revisions\/28031"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=28030"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28030"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28030"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}