{"id":6651,"date":"2016-01-08T11:25:37","date_gmt":"2016-01-08T10:25:37","guid":{"rendered":"http:\/\/karmaka.de\/?p=6651"},"modified":"2016-01-08T11:26:48","modified_gmt":"2016-01-08T10:26:48","slug":"high-crustal-diversity-preserved-in-the-lunar-meteorite-mount-dewitt-12007-victoria-land-antarctica","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=6651","title":{"rendered":"High crustal diversity preserved in the lunar meteorite Mount DeWitt 12007 (Victoria Land, Antarctica)"},"content":{"rendered":"<p>Collareta, A., D&#8217;Orazio, M., Gemelli, M., Pack, A. and Folco, L.<\/p>\n<p>Meteoritics &#038; Planetary Science. doi: 10.1111\/maps.12597<br \/>\nArticle first published online: 8 JAN 2016<\/p>\n<p><a href=\"http:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/maps.12597\/abstract\" target=\"_blank\"><strong>LINK<\/strong><\/a><\/p>\n<p>The meteorite Mount DeWitt (DEW) 12007 is a polymict regolith breccia mainly consisting of glassy impact-melt breccia particles, gabbroic clasts, feldspathic clasts, impact and volcanic glass beads, basaltic clasts, and mingled breccia clasts embedded in a matrix dominated by fine-grained crystals; vesicular glassy veins and rare agglutinates are also present. Main minerals are plagioclase (typically An>85) and clinopyroxene (pigeonites and augites, sometimes interspersed). The presence of tranquillityite, coupled with the petrophysical data, the O-isotope data (\u039417O = \u22120.075), and the FeOtot\/MnO ratios in olivine (91), pyroxene (65), and bulk rock (77) indicate a lunar origin for DEW 12007. Impactites consist of Al-rich impact-melt splashes and plagioclase-rich meta-melt clasts. The volcanic products belong to the very low titanium (VLT) or low titanium (LT) suites; an unusual subophitic fragment could be cryptomare-related. Gabbroic clasts could represent part of a shallow intrusion within a volcanic complex with prevailing VLT affinity. DEW 12007 has a mingled bulk composition with relatively high incompatible element abundances and shows a high crustal diversity comprising clasts from the Moon&#8217;s major terranes and rare lithologies. First-order petrographic and chemical features suggest that DEW 12007 could be launch-paired with other meteorites including Y 793274\/981031, QUE 94281, EET 87521\/96008, and NWA 4884.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Collareta, A., D&#8217;Orazio, M., Gemelli, M., Pack, A. and Folco, L. Meteoritics &#038; Planetary Science. doi: 10.1111\/maps.12597 Article first published online: 8 JAN 2016 LINK The meteorite Mount DeWitt (DEW) 12007 is a polymict regolith&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28,41,115],"tags":[2311,2314,1827,2309,2315,2310,2313,2312],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/6651"}],"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=6651"}],"version-history":[{"count":1,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/6651\/revisions"}],"predecessor-version":[{"id":6652,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/6651\/revisions\/6652"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6651"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6651"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6651"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}