{"id":11723,"date":"2017-02-15T18:44:16","date_gmt":"2017-02-15T17:44:16","guid":{"rendered":"http:\/\/karmaka.de\/?p=11723"},"modified":"2017-02-15T18:44:16","modified_gmt":"2017-02-15T17:44:16","slug":"discovery-of-the-fe-analogue-of-akimotoite-in-the-shocked-suizhou-l6-chondrite","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=11723","title":{"rendered":"Discovery of the Fe-analogue of akimotoite in the shocked Suizhou L6 chondrite<span class=\"badge-status\" style=\"background:#787878\">OPEN ACCESS<\/span>&nbsp;"},"content":{"rendered":"<p>Luca Bindi, Ming Chen &#038; Xiande Xie<\/p>\n<p>Scientific Reports 7, Article number: 42674 (2017)<br \/>\ndoi:10.1038\/srep42674<br \/>\nPublished online: 15 February 2017<\/p>\n<p><a href=\"http:\/\/www.nature.com\/articles\/srep42674\" target=\"_blank\"><strong>LINK (OPEN ACCESS)<\/strong><\/a><\/p>\n<p>&#8220;We report the first natural occurrence of the Fe-analogue of akimotoite, ilmenite-structured MgSiO3, a missing phase among the predicted high-pressure polymorphs of Fe-pyroxene, with the composition (Fe2+0.48Mg0.37Ca0.04Na0.04Mn2+0.03Al0.03Cr3+0.01)\u03a3=1.00Si1.00O3. The new mineral was approved by the International Mineralogical Association (IMA 2016-085) and named hemleyite in honour of Russell J. Hemley. It was discovered in an unmelted portion of the heavily shocked L6 Suizhou chondrite closely associated to olivine, clinoenstatite and Fe-bearing pyroxene with a composition nearly identical to that of hemleyite. We also report the first single-crystal X-ray diffraction study of a Si-bearing, ilmenite-structured phase. The fact that hemleyite formed in a meteorite exposed to high pressures (<20\u2009GPa) and temperatures (<2000\u2009\u00b0C) during impact-induced shocks indicates that it could play a crucial role at the bottom of the Earth\u2019s mantle transition zone and within the uppermost lower mantle.\"\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Luca Bindi, Ming Chen &#038; Xiande Xie Scientific Reports 7, Article number: 42674 (2017) doi:10.1038\/srep42674 Published online: 15 February 2017 LINK (OPEN ACCESS) &#8220;We report the first natural occurrence of the Fe-analogue of akimotoite, ilmenite-structured&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23,7],"tags":[1275,1815,103,1807,1274],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/11723"}],"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=11723"}],"version-history":[{"count":1,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/11723\/revisions"}],"predecessor-version":[{"id":11724,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/11723\/revisions\/11724"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11723"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11723"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11723"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}