{"created":"2023-07-25T11:02:21.931216+00:00","id":4598,"links":{},"metadata":{"_buckets":{"deposit":"49fecd4e-67ce-4981-bc2b-75d9dfffa1dc"},"_deposit":{"created_by":4,"id":"4598","owners":[4],"pid":{"revision_id":0,"type":"depid","value":"4598"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00004598","sets":["1259:1260:1264:584:590"]},"author_link":["46614","7954","46615"],"item_1_biblio_info_14":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1993-05","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"13","bibliographicPageStart":"3","bibliographicVolumeNumber":"6","bibliographic_titles":[{"bibliographic_title":"Proceedings of the NIPR Symposium on Antarctic Meteorites"}]}]},"item_1_creator_8":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Takeda,Hiroshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Arai,Tomoko","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Saiki,Kazuto","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":"A preliminary mineralogical study of the lunar meteorites Yamato (Y)-793169 and Asuka (A)-881757,which were apparently derived from a mare region of the Moon, has been performed to identify crystallization trends of their pyroxenes. Y-793169 is a crystalline basalt with similar basaltic components to lunar breccias EET87521 and Y-793274,containing strongly zoned Fe-Ca-rich pyroxenes. Their zoning trends in the pyroxene quadrilateral are closest to those found in the basaltic clast in an Apollo 16 breccia. Differentiation trends expressed by Ti/(Ti+Cr) versus Fe/(Fe+Mg) of Y-793169 and A-881757 pyroxenes are similar but they differ from those of EET87521. The Y-793169 trend starts at a more Mg-rich composition point than the A-881757 trend. Based on differences in textures and ranges of zoning trends, the pyroxene of A-881757 could represent growth deeper in the lava unit under conditions more closely approaching equilibrium, than Y-793169,which appears to have formed from a lava flow of similar bulk composition. Although Y-793169 has been described as the VLT basalt, some mesostases contain significant amounts of ilmenite and ulvospinel, together with fayalite, troilite, chromite and a silica mineral. Mg-rich pyroxenes as found in Y-793274 and EET87521 are not present in Y-793169 and A-881757 basalts.","subitem_description_type":"Other"}]},"item_1_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15094/00004598","subitem_identifier_reg_type":"JaLC"}]},"item_1_publisher_22":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"National Institute of Polar Research"}]},"item_1_source_id_13":{"attribute_name":"雑誌書誌ID","attribute_value_mlt":[{"subitem_source_identifier":"AA10784627","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":"Mineralogical Institute, Faculty of Science, University of Tokyo/Mineralogical Institute, Faculty of Science, University of Tokyo/Mineralogical Institute, Faculty of Science, University of Tokyo"}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"1993-05-01"}],"displaytype":"detail","filename":"KJ00000036404.pdf","filesize":[{"value":"1.2 MB"}],"format":"application/pdf","licensetype":"license_6","mimetype":"application/pdf","url":{"label":"KJ00000036404","url":"https://nipr.repo.nii.ac.jp/record/4598/files/KJ00000036404.pdf"},"version_id":"8d822f85-201a-4422-acf0-91f8cd98133b"}]},"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":"Mineralogical studies of lunar meteorite Yamato-793169, a mare basalt","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Mineralogical studies of lunar meteorite Yamato-793169, a mare basalt"}]},"item_type_id":"1","owner":"4","path":["590"],"pubdate":{"attribute_name":"公開日","attribute_value":"1993-05-01"},"publish_date":"1993-05-01","publish_status":"0","recid":"4598","relation_version_is_last":true,"title":["Mineralogical studies of lunar meteorite Yamato-793169, a mare basalt"],"weko_creator_id":"4","weko_shared_id":4},"updated":"2023-07-25T12:18:41.600974+00:00"}