PDF (OPEN ACCESS)<\/strong><\/a><\/p>\n\n\n\n“Carbonaceous chondrites accreted in the protoplanetary disk and provide a record of the earliest planet-formation processes. It is desirable to identify meteorites with the least amount of parent-body modification (e.g., aqueous alteration, thermal metamorphism) as these provide a largely unmodified sample of presolar and nebular materials. The most abundant CCs, the CMs, show a wide range of parent-body modification, but all have been altered to some extent. Moreover, with the impending return of samples from asteroids Ryugu and Bennu by the Hayabusa2 and OSIRIS-REx spacecraft, respectively, CMs have come under increasing scrutiny, since spectroscopic evidence suggests both bodies may be related to this class of meteorites. Kimura et al. [1] recently reported evidence that three Antarctic CMs may be even more pristine than the Paris meteorite, heretofore considered the least-altered CM [2]. We report a multi-technique study of one of these, Asuka (A) 12236, that confirms that this is indeed a highly primitive meteorite.”<\/p>\n","protected":false},"excerpt":{"rendered":"
L. R. Nittler, C. M. O’D. Alexander, D. Foustoukos, A. Patzer, M. J. Verdier-Paoletti 51st Lunar and Planetary Science Conference (2020), Abstract #2276 PDF (OPEN ACCESS) “Carbonaceous chondrites accreted in the protoplanetary disk and provide…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[61,9,18,62],"tags":[1842,5420,3273,105,1843],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/21346"}],"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=21346"}],"version-history":[{"count":3,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/21346\/revisions"}],"predecessor-version":[{"id":21349,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/21346\/revisions\/21349"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=21346"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21346"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}