LINK<\/strong><\/a><\/p>\n“NWA 10214 is an LL3-6 breccia containing ~8 vol% clasts including LL5, LL6, and shocked-darkened LL fragments as well as matrix-rich Clast 6 (a new kind of chondrite). This clast is a dark-colored, subrounded, 6.1 \u00d7 7.0 mm inclusion, consisting of 60 vol% fine-grained matrix, 32 vol% coarse silicate grains, and 8 vol% coarse opaque grains. The large chondrules and chondrule fragments are mainly Type IB; one small chondrule is Type IIA. Also present are one 450 \u00d7 600 \u03bcm spinel-pyroxene-olivine CAI and one 85 \u00d7 110 \u03bcm AOI. Clast 6 possesses a unique set of properties. (1) It resembles carbonaceous chondrites in having relatively abundant matrix, CAIs, and AOIs; the clast’s matrix composition is close to that in CV3 Vigarano. (2) It resembles type-3 OC in its olivine and low-Ca pyroxene compositional distributions, and in the Fe\/Mn ratio of ferroan olivine grains. Its mean chondrule size is within 1\u03c3 of that of H chondrites. The O-isotopic compositions of the chondrules are in the ordinary- and R-chondrite ranges. (3) It resembles type-3 enstatite chondrites in the minor element concentrations in low-Ca pyroxene grains and in having a high low-Ca pyroxene\/olivine ratio in chondrules. Clast 6 is a new variety of type-3 OC, somewhat more reduced than H chondrites or chondritic clasts in the Netschaevo IIE iron; the clast formed in a nebular region where aerodynamic radial drift processes deposited a high abundance of matrix material and CAIs. A chunk of this chondrite was ejected from its parent asteroid and later impacted the LL body at low relative velocity.”<\/p>\n","protected":false},"excerpt":{"rendered":"
Rubin, A. E., Breen, J. P., Isa, J. and Tutorow, S. Meteoritics & Planetary Science. doi: 10.1111\/maps.12797 LINK “NWA 10214 is an LL3-6 breccia containing ~8 vol% clasts including LL5, LL6, and shocked-darkened LL fragments…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24,7],"tags":[2382,3439,1816,3438,2448,1807],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/10835"}],"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=10835"}],"version-history":[{"count":1,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/10835\/revisions"}],"predecessor-version":[{"id":10836,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/10835\/revisions\/10836"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10835"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10835"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10835"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}