{"created":"2023-07-25T11:02:21.288877+00:00","id":4585,"links":{},"metadata":{"_buckets":{"deposit":"62e5bc0b-8bef-4fc2-b1c4-fb27f7e773c5"},"_deposit":{"created_by":4,"id":"4585","owners":[4],"pid":{"revision_id":0,"type":"depid","value":"4585"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00004585","sets":["1259:1260:1264:584:589"]},"author_link":["46950","47010","7975"],"item_1_biblio_info_14":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1992-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"297","bibliographicPageStart":"290","bibliographicVolumeNumber":"5","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":"Fujimaki, Hirokazu","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ishikawa, Ken-ichi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Aoki, Ken-ichiro","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":"Rubidium and strontium abundances as well as Sr isotopic compositions were analyzed for the impact-melted meteorites (LL-chondrite : Yamato-790723 and -790528) from Antarctica to clarify their Rb-Sr features and to date the impact events. The samples were separated according to the magnetic property. The less magnetic and glass-rich portions of Y-790723 approximate an isochron of 1.27±0.19 Ga. The obtained age should indicate the impact event. The magnetic portions and fine-grained one largely deviate from the isochron. Y-790528 is rather depleted in K_2O and Rb, but not in Na_2O; this may be due to scarcity of the K-rich fragments. The ^<87>Sr/^<86>Sr ratios of the separated portions from Y-790528 are low and less variable. The five less magnetic portions of the Y-790528 chondrite seem to form the isochron of 4.36±0.76Ga as the time of the impact event. The large errors may have derived from local reset of the Rb-Sr chronometer and incomplete separation into the portions.","subitem_description_type":"Other"}]},"item_1_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15094/00004585","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":"Institute of Mineralogy, Petrology, and Economic Geology, TohokuUniversity"},{"subitem_text_language":"en","subitem_text_value":"College of General Education, Tohoku University"},{"subitem_text_language":"en","subitem_text_value":"Instituteof Mineralogy, Petrology, and Economic Geology, Tohoku University"}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"1992-03-01"}],"displaytype":"detail","filename":"KJ00000036391.pdf","filesize":[{"value":"1.2 MB"}],"format":"application/pdf","licensetype":"license_6","mimetype":"application/pdf","url":{"label":"KJ00000036391","url":"https://nipr.repo.nii.ac.jp/record/4585/files/KJ00000036391.pdf"},"version_id":"6dc64362-5f42-49c9-b7b2-a0d99cf48f01"}]},"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":"Rb-Sr features of the impact-melted LL-chondrites from Antarctica:Yamato-790723 and Yamato-790528","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Rb-Sr features of the impact-melted LL-chondrites from Antarctica:Yamato-790723 and Yamato-790528"}]},"item_type_id":"1","owner":"4","path":["589"],"pubdate":{"attribute_name":"公開日","attribute_value":"1992-03-01"},"publish_date":"1992-03-01","publish_status":"0","recid":"4585","relation_version_is_last":true,"title":["Rb-Sr features of the impact-melted LL-chondrites from Antarctica:Yamato-790723 and Yamato-790528"],"weko_creator_id":"4","weko_shared_id":4},"updated":"2023-07-25T12:18:49.684539+00:00"}