{"created":"2023-07-25T11:00:20.305254+00:00","id":2134,"links":{},"metadata":{"_buckets":{"deposit":"9f59113f-49a0-4adf-b947-9ffb09f45e43"},"_deposit":{"created_by":4,"id":"2134","owners":[4],"pid":{"revision_id":0,"type":"depid","value":"2134"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00002134","sets":["1:356:400"]},"author_link":["1728","57988"],"item_1_biblio_info_14":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1987-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"215","bibliographicPageStart":"205","bibliographicVolumeNumber":"46","bibliographic_titles":[{"bibliographic_title":"Memoirs of National Institute of Polar Research. Special issue"}]}]},"item_1_creator_8":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Mukherjee,Amalbikash","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Viswanath,T.A.","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_1_description_1":{"attribute_name":"ページ属性","attribute_value_mlt":[{"subitem_description":"P(論文)","subitem_description_type":"Other"}]},"item_1_description_12":{"attribute_name":"抄録(英)","attribute_value_mlt":[{"subitem_description":"Mg-Fe^<2+> exchange reaction between orthopyroxene and spinel has been calibrated thermodynamically and empirically and applied to the thermometry of diogenites. Based on regression of the orthopyroxene-spinel Mg-Fe^<2+> distribution coefficients against the Cr-mole fractions of the spinel of a number of naturally and experimentally equilibrated samples, the empirical calibration is more successful, gives internally consistent results and agrees well with independent temperature estimates of a wide range of terrestrial test samples. Uncertainty of the empirically determined temperatures, however, increases with decreasing Mg-Fe^<2+> distribution coefficient between orthopyroxene and spinel and increasing Cr-content of the spinel. Applied to a number of diogenites, the empirical calibration gives moderately high temperatures (687 and 885℃) for the Johnstown and Yamato-75032 diogenites and very high temperatures (between 1512 and 1941℃) for Y-692,-74013 and -74136 diogenites. The Johnstown and Y-75032 diogenites possibly represent thermally equilibrated orthopyroxene-spinel assemblages comparable to slowly cooled terrestrial ultramafic plutonic bodies broadly in the 700-900℃ temperature regime. The higher temperature Yamato group on the other hand appears to be disequilibrium assemblages, affected by shock-reheating, partial melting and recrystallization.","subitem_description_type":"Other"}]},"item_1_source_id_13":{"attribute_name":"雑誌書誌ID","attribute_value_mlt":[{"subitem_source_identifier":"AA00733561","subitem_source_identifier_type":"NCID"}]},"item_1_text_10":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Department of Geology and Geophysics, Indian Institute of Technology/Department of Geology and Geophysics, Indian Institute of Technology"}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"1987-03-01"}],"displaytype":"detail","filename":"KJ00000012687.pdf","filesize":[{"value":"1.2 MB"}],"format":"application/pdf","licensetype":"license_6","mimetype":"application/pdf","url":{"label":"KJ00000012687","url":"https://nipr.repo.nii.ac.jp/record/2134/files/KJ00000012687.pdf"},"version_id":"cc0630cb-bae4-4abb-b5c6-2ca1860bbe99"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Thermometry of diogenites","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Thermometry of diogenites","subitem_title_language":"en"}]},"item_type_id":"1","owner":"4","path":["400"],"pubdate":{"attribute_name":"公開日","attribute_value":"1987-03-01"},"publish_date":"1987-03-01","publish_status":"0","recid":"2134","relation_version_is_last":true,"title":["Thermometry of diogenites"],"weko_creator_id":"4","weko_shared_id":4},"updated":"2023-07-25T13:51:29.054181+00:00"}