{"created":"2023-07-25T11:03:05.750274+00:00","id":5905,"links":{},"metadata":{"_buckets":{"deposit":"004db8df-5ae9-4614-bd2c-e965d0c56f6d"},"_deposit":{"created_by":4,"id":"5905","owners":[4],"pid":{"revision_id":0,"type":"depid","value":"5905"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00005905","sets":["1259:1260:1264:773:774"]},"author_link":["56028","9841","43858"],"item_1_biblio_info_14":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1997-09","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"333","bibliographicPageStart":"313","bibliographicVolumeNumber":"10","bibliographic_titles":[{"bibliographic_title":"Antarctic meteorite research"}]}]},"item_1_creator_8":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Kano, Naoki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yamakoshi, Kazuo","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Imamura, Mineo","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":"The Cr isotopic composition of primitive meteorites (acid-residue fractions) was studied. Five chondrites were analyzed in this work [Allende (CV3), Murchison (CM2), Nuevo Mercurio (H5), La Criolla (L6), Qingzhen (EH3)]. Although in most samples, no isotopic anomalies beyond the experimental errors could be detected, an elevated ^<54>Cr/^<52>Cr ratio was found in the acid-soluble fraction from Qingzhen. Moreover, ε^<53>Cr and ε^<54>Cr show an inverse correlation among the meteorites analyzed in this study, and the acid residues have larger ε^<54>Cr and smaller ε^<53>Cr values than do the acid-soluble fractions in Allende and Murchison. The enrichment of ^<54>Cr in the Qingzhen sample suggests that the ^<54>Cr heterogeneity due to stellar nucleosynthesis has remained in enstatite chondrite as well as carbonaceous chondrite. In addition, the inverse correlation of ε^<53>Cr and ε^<54>Cr detected in acid residue samples indicates that the high-temperature condensate contained more exotic ^<54>Cr. It is also suggested that the homogenization of Cr isotopes proceeded with time, and terminated within a relatively short time scale of less than 2-3 Ma.","subitem_description_type":"Other"}]},"item_1_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15094/00005905","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":"AA11182426","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":"Institute for Cosmic Ray Research, University of Tokyo"},{"subitem_text_language":"en","subitem_text_value":"Institute for Cosmic Ray Research, University of Tokyo"},{"subitem_text_language":"en","subitem_text_value":"Institute for Nuclear Study, 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":"1997-09-01"}],"displaytype":"detail","filename":"KJ00000040897.pdf","filesize":[{"value":"2.8 MB"}],"format":"application/pdf","licensetype":"license_6","mimetype":"application/pdf","url":{"label":"KJ00000040897","url":"https://nipr.repo.nii.ac.jp/record/5905/files/KJ00000040897.pdf"},"version_id":"358402e3-ff93-4da1-af38-c516543b4ba3"}]},"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":"Chromium isotopic composition of some chondritic meteorites","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Chromium isotopic composition of some chondritic meteorites"}]},"item_type_id":"1","owner":"4","path":["774"],"pubdate":{"attribute_name":"公開日","attribute_value":"1997-09-01"},"publish_date":"1997-09-01","publish_status":"0","recid":"5905","relation_version_is_last":true,"title":["Chromium isotopic composition of some chondritic meteorites"],"weko_creator_id":"4","weko_shared_id":4},"updated":"2023-07-25T12:08:47.828180+00:00"}