{"id":31880,"date":"2022-12-22T12:00:04","date_gmt":"2022-12-22T11:00:04","guid":{"rendered":"https:\/\/karmaka.de\/?p=31880"},"modified":"2022-12-22T12:45:54","modified_gmt":"2022-12-22T11:45:54","slug":"experimentally-shock-induced-melt-veins-in-basalt-improving-the-shock-classification-of-eucrites","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=31880","title":{"rendered":"Experimentally shock-induced melt veins in basalt: Improving the shock classification of eucrites<span class=\"badge-status\" style=\"background:#787878\">OPEN ACCESS<\/span>&nbsp;"},"content":{"rendered":"\n<p>Haruka Ono,Kosuke Kurosawa,Takafumi Niihara,Takashi Mikouchi,Naotaka Tomioka,Junko Isa,Hiroyuki Kagi,Takuya Matsuzaki,Hiroshi Sakuma,Hidenori Genda,Tatsuhiro Sakaiya,Tadashi Kondo,Masahiro Kayama,Mizuho Koike,Yuji Sano,Masafumi Murayama,Wataru Satake,Takafumi Matsui<\/p>\n\n\n\n<p>accepted for publication in Geophysical Research Letters<\/p>\n\n\n\n<p><a href=\"https:\/\/arxiv.org\/pdf\/2212.10964\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>PDF (OPEN ACCESS)<\/strong><\/a><\/p>\n\n\n\n<p class=\"justify-text\">&#8220;Basaltic rocks occur widely on the terrestrial planets and differentiated asteroids, including the asteroid 4 Vesta. We conducted a shock recovery experiment with decaying compressive pulses on a terrestrial basalt at Chiba Institute of Technology, Japan. The sample recorded a range of pressures, and shock physics modeling was conducted to add a pressure scale to the observed shock features. The shocked sample was examined by optical and electron microscopy, electron back-scattered diffractometry, and Raman spectroscopy. We found that localized melting occurs at a lower pressure (~10 GPa) than previously thought (&gt;20 GPa). The shocked basalt near the epicenter represents shock degree C of a recently proposed classification scheme for basaltic eucrites and, as such, our results provide a pressure scale for the classification scheme. Finally, we estimated the total fraction of the basaltic eucrites classified as shock degree C to be ~15% by assuming the impact velocity distribution onto Vesta.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Haruka Ono,Kosuke Kurosawa,Takafumi Niihara,Takashi Mikouchi,Naotaka Tomioka,Junko Isa,Hiroyuki Kagi,Takuya Matsuzaki,Hiroshi Sakuma,Hidenori Genda,Tatsuhiro Sakaiya,Tadashi Kondo,Masahiro Kayama,Mizuho Koike,Yuji Sano,Masafumi Murayama,Wataru Satake,Takafumi Matsui accepted for publication in Geophysical Research Letters PDF (OPEN ACCESS) &#8220;Basaltic rocks occur widely on the&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[67,35,63,186],"tags":[1847,2826,1823,3661,1844,314,606,1872],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/31880"}],"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=31880"}],"version-history":[{"count":1,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/31880\/revisions"}],"predecessor-version":[{"id":31881,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/31880\/revisions\/31881"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=31880"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=31880"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=31880"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}