{"id":15636,"date":"2018-06-29T18:24:48","date_gmt":"2018-06-29T16:24:48","guid":{"rendered":"http:\/\/karmaka.de\/?p=15636"},"modified":"2018-06-29T18:38:11","modified_gmt":"2018-06-29T16:38:11","slug":"high-pressure-minerals-in-the-chateau-renard-l6-ordinary-chondrite-implications-for-collisions-on-its-parent-body","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=15636","title":{"rendered":"High pressure minerals in the Ch\u00e2teau-Renard (L6) ordinary chondrite: implications for collisions on its parent body<span class=\"badge-status\" style=\"background:#787878\">OPEN ACCESS<\/span>&nbsp;"},"content":{"rendered":"<p>Ioannis Baziotis, Paul D. Asimow, Jinping Hu, Ludovic Ferri\u00e8re, Chi Ma, Ana Cernok, Mahesh Anand &#038; Dan Topa<\/p>\n<p>Scientific Reportsvolume 8, Article number: 9851 (2018) <\/p>\n<p><a href=\"https:\/\/www.nature.com\/articles\/s41598-018-28191-6\" target=\"_blank\"><strong>LINK (OPEN ACCESS)<\/strong><\/a><br \/>\n<a href=\"https:\/\/www.nature.com\/articles\/s41598-018-28191-6.pdf\" target=\"_blank\"><strong>PDF (OPEN ACCESS)<\/strong><\/a><\/p>\n<p>&#8220;We report the first discoveries of high-pressure minerals in the historical L6 chondrite fall Ch\u00e2teau-Renard, based on co-located Raman spectroscopy, scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy and electron backscatter diffraction, electron microprobe analysis, and transmission electron microscopy (TEM) with selected-area electron diffraction. A single polished section contains a network of melt veins from ~40 to ~200\u2009\u03bcm wide, with no cross-cutting features requiring multiple vein generations. We find high-pressure minerals in veins greater than ~50\u2009\u03bcm wide, including assemblages of ringwoodite\u2009+\u2009wadsleyite, ringwoodite\u2009+\u2009wadsleyite\u2009+\u2009majorite-pyropess, and ahrensite\u2009+\u2009wadsleyite. In association with ahrensite\u2009+\u2009wadsleyite at both SEM and TEM scale, we find a sodic pyroxene whose Raman spectrum is indistinguishable from that of jadeite but whose composition and structure are those of omphacite. We discuss constraints on the impact record of this meteorite and the L-chondrites in general.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ioannis Baziotis, Paul D. Asimow, Jinping Hu, Ludovic Ferri\u00e8re, Chi Ma, Ana Cernok, Mahesh Anand &#038; Dan Topa Scientific Reportsvolume 8, Article number: 9851 (2018) LINK (OPEN ACCESS) PDF (OPEN ACCESS) &#8220;We report the first&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[54,23,7,127],"tags":[4598,2805,325,103,1807],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/15636"}],"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=15636"}],"version-history":[{"count":4,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/15636\/revisions"}],"predecessor-version":[{"id":15640,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/15636\/revisions\/15640"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=15636"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=15636"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=15636"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}