{"id":1533,"date":"2014-11-04T14:28:10","date_gmt":"2014-11-04T13:28:10","guid":{"rendered":"http:\/\/karmaka.de\/?p=1533"},"modified":"2014-11-04T14:32:58","modified_gmt":"2014-11-04T13:32:58","slug":"classification-of-hydrous-meteorites-cr-cm-and-c2-ungrouped-by-phyllosilicate-fraction-psd-xrd-modal-mineralogy-and-planetesimal-environments","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=1533","title":{"rendered":"Classification of hydrous meteorites (CR, CM and C2 ungrouped) by phyllosilicate fraction: PSD-XRD modal mineralogy and planetesimal environments"},"content":{"rendered":"<p>K.T. Howard, C.M.O\u2019D. Alexander, D.L. Schrader, K.A. Dyl<br \/>\nDOI: 10.1016\/j.gca.2014.10.025<br \/>\navailable online 4 November 2014<\/p>\n<p><a href=\"http:\/\/www.sciencedirect.com\/science\/article\/pii\/S0016703714006334\" target=\"_blank\"><strong>LINK<\/strong><\/a><\/p>\n<blockquote><p> Here we report the bulk mineralogies and degrees of hydration in 37 different carbonaceous chondrites: Renazzo-like (CR), Mighei-like (CM), and ungrouped (type 2) samples. This is achieved by quantifying the modal abundances of all major (phases present in abundances >1wt.%) minerals using Position Sensitive Detector X-ray Diffraction (PSD-XRD). From these modal abundances, a classification scheme is constructed that is based on the normalized fraction of phyllosilicate (View the MathML sourcetotalphyllosilicate\/totalanhydroussilicate+totalphyllosilicate). Samples are linearly ranked from type 3.0 &#8211; corresponding to a phyllosilicate fraction of <0.05, to type 1.0 - corresponding to a total phyllosilicate fraction of >0.95. Powdered meteorite samples from any hydrated carbonaceous chondrite group can be ranked on this single classification scale. The resulting classifications for CRs exhibit a range from type 2.8 to 1.3, while for CMs the range is 1.7\u20131.2. <\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>K.T. Howard, C.M.O\u2019D. Alexander, D.L. Schrader, K.A. Dyl DOI: 10.1016\/j.gca.2014.10.025 available online 4 November 2014 LINK Here we report the bulk mineralogies and degrees of hydration in 37 different carbonaceous chondrites: Renazzo-like (CR), Mighei-like (CM),&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[61,9,59,18,12,335],"tags":[1842,106,236,105,1810,495,1807,496,497],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/1533"}],"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=1533"}],"version-history":[{"count":2,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/1533\/revisions"}],"predecessor-version":[{"id":1538,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/1533\/revisions\/1538"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1533"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1533"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1533"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}