LINK<\/strong><\/a><\/p>\n\n\n\n“To further constrain the lunar Li isotopic composition and its behavior during lunar magmatic differentiation, we measured twelve lunar meteorites, including mare basalts, Mg-suite rocks and anorthosites. Petrographic observation, dilute acid cleaning, and trace elemental characteristics indicate minimal terrestrial contamination. Low-Ti basalt meteorites yield a restricted \u03b47Li range (2.75 \u00b1 0.52\u2030 to 3.95 \u00b1 0.16\u2030), consistent with Apollo low-Ti basalts (3.1\u223c5.6\u2030). The Mg-rich norite Arguin 002 shows a similar value, supporting limited Li isotope fractionation during early lunar magma ocean (LMO) differentiation, a conclusion corroborated by modeling results of Li isotopic evolution during LMO differentiation. The heavier \u03b47Li in high-Ti basalts, however, points to the presence of interaction between ilmenite-bearing cumulate-derived melts and the ambient mantle rather than to simple late-stage LMO differentiation. Combining the reported Apollo and La Paz mare basalt meteorites data, we estimate the lunar mantle \u03b47Li to be 3.8 \u00b1 1.3\u2030, indistinguishable from the Earth’s mantle, implying negligible fractionation during the Giant Impact. In contrast, lunar anorthosites exhibit extreme \u03b47Li variations (\u22120.7\u2030 to 9.8\u2030) with a negative correlation with Li content, likely reflecting impact-driven secondary redistribution. These findings not only confirm the Earth-Moon Li isotopic similarity using meteorites from diverse lunar terrains that complement the Apollo collection but also reveal that the lunar crust has been pervasively modified by impact processes, which have significantly disturbed its primary Li isotopic compositions.”<\/p>\n","protected":false},"excerpt":{"rendered":"
Heng-Ci Tian, Wei Yang, Huijuan Zhang, Jingyan Cai, Yangting Lin, Keqing Zong, Qi Liu, Feixiang Liu, Caihong Gao, Maoyong He JGR Planets, Volume 131, Issue 10, First Published: 1 October 2026 LINK “To further constrain…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41,115],"tags":[6817,3298,1827,4955,850,1338,841,1857],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/42596"}],"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=42596"}],"version-history":[{"count":1,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/42596\/revisions"}],"predecessor-version":[{"id":42597,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/42596\/revisions\/42597"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=42596"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=42596"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=42596"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}