{"id":42398,"date":"2026-08-08T11:08:59","date_gmt":"2026-08-08T09:08:59","guid":{"rendered":"https:\/\/karmaka.de\/?p=42398"},"modified":"2026-08-08T11:17:49","modified_gmt":"2026-08-08T09:17:49","slug":"genetic-links-between-iiie-iron-meteorites-and-the-core-of-the-hed-parent-asteroid","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=42398","title":{"rendered":"Genetic links between IIIE iron meteorites and the core of the HED parent asteroid<span class=\"badge-status\" style=\"background:#787878\">OPEN ACCESS<\/span>&nbsp;"},"content":{"rendered":"\n<p>Wenbo Xu, Renbiao Tao, Shijie Li, Xiaobin Cao, Deliang Wang, Dehan Shen, Yurun Wu, Yuhang Lu &amp; Jintao Zhu<\/p>\n\n\n\n<p>Communications Earth &amp; Environment, Published: 08 August 2026<\/p>\n\n\n\n<p><a href=\"https:\/\/link.springer.com\/content\/pdf\/10.1038\/s43247-026-03882-5_reference.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>PDF (OPEN ACCESS)<\/strong><\/a><\/p>\n\n\n\n<p class=\"justify-text\">&#8220;Rocky planets formed through the differentiation of planetesimals into metal\u2011rich cores and silicate mantles, yet direct evidence linking these complementary reservoirs remains scarce. Here we show that IIIE irons and howardite-eucrite-diogenite (HED) meteorites are genetically linked, by integrating mineralogical, isotopic, and rare earth element (REE) analyses of the silicate-bearing Aletai IIIE meteorite. The silicates display Fe\/Mn-Fe\/Mg correlations, concordant oxygen isotope compositions, and strongly fractionated REE patterns consistent with those of HED meteorites. A pronounced negative Eu anomaly in orthopyroxene marks the onset of plagioclase saturation and buoyant segregation during early magma ocean crystallization, supported by thermodynamic modelling. These findings establish a genetic link between magmatic irons and differentiated achondrites, suggesting that IIIE irons and HEDs share a common genetic heritage, and providing direct physical evidence for core-mantle reservoir connections in the early Solar System.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Wenbo Xu, Renbiao Tao, Shijie Li, Xiaobin Cao, Deliang Wang, Dehan Shen, Yurun Wu, Yuhang Lu &amp; Jintao Zhu Communications Earth &amp; Environment, Published: 08 August 2026 PDF (OPEN ACCESS) &#8220;Rocky planets formed through the&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28,33,3038,214,137,420],"tags":[3417,2108,3039,4515,6979],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/42398"}],"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=42398"}],"version-history":[{"count":2,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/42398\/revisions"}],"predecessor-version":[{"id":42400,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/42398\/revisions\/42400"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=42398"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=42398"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=42398"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}