{"id":13378,"date":"2017-07-24T11:01:21","date_gmt":"2017-07-24T09:01:21","guid":{"rendered":"http:\/\/karmaka.de\/?p=13378"},"modified":"2017-07-24T11:03:22","modified_gmt":"2017-07-24T09:03:22","slug":"shock-fabrics-in-fine-grained-micrometeorites","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=13378","title":{"rendered":"Shock fabrics in fine-grained micrometeorites.<span class=\"badge-status\" style=\"background:#787878\">OPEN ACCESS<\/span>&nbsp;"},"content":{"rendered":"<p>Suttle, M. D., Genge, M. J. and Russell, S. S.<\/p>\n<p>Meteorit Planet Sci. doi:10.1111\/maps.12927<\/p>\n<p><a href=\"http:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/maps.12927\/full\" target=\"_blank\"><strong>LINK (OPEN ACCESS)<\/strong><\/a><br \/>\n<a href=\"http:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/maps.12927\/epdf\" target=\"_blank\"><strong>PDF (OPEN ACCESS)<\/strong><\/a><\/p>\n<p>&#8220;The orientations of dehydration cracks and fracture networks in fine-grained, unmelted micrometeorites were analyzed using rose diagrams and entropy calculations. As cracks exploit pre-existing anisotropies, analysis of their orientation provides a mechanism with which to study the subtle petrofabrics preserved within fine-grained and amorphous materials. Both uniaxial and biaxial fabrics are discovered, often with a relatively wide spread in orientations (40\u00b0\u201360\u00b0). Brittle deformation cataclasis and rotated olivine grains are reported from a single micrometeorite. This paper provides the first evidence for impact-induced shock deformation in fine-grained micrometeorites. The presence of pervasive, low-grade shock features in CM chondrites and CM-like dust, anomalously low-density measurements for C-type asteroids, and impact experiments which suggest CM chondrites are highly prone to disruption all imply that CM parent bodies are unlikely to have remained intact and instead exist as a collection of loosely aggregated rubble-pile asteroids, composed of primitive shocked clasts.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Suttle, M. D., Genge, M. J. and Russell, S. S. Meteorit Planet Sci. doi:10.1111\/maps.12927 LINK (OPEN ACCESS) PDF (OPEN ACCESS) &#8220;The orientations of dehydration cracks and fracture networks in fine-grained, unmelted micrometeorites were analyzed using&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18,3157],"tags":[105,4117,327],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/13378"}],"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=13378"}],"version-history":[{"count":2,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/13378\/revisions"}],"predecessor-version":[{"id":13380,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/13378\/revisions\/13380"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=13378"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=13378"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=13378"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}