{"created":"2023-07-25T11:02:19.268544+00:00","id":4540,"links":{},"metadata":{"_buckets":{"deposit":"8eb99ca2-cdbe-47e0-9164-35cfc8a0c628"},"_deposit":{"created_by":4,"id":"4540","owners":[4],"pid":{"revision_id":0,"type":"depid","value":"4540"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00004540","sets":["1259:1260:1264:584:588"]},"author_link":["16340","578"],"item_1_biblio_info_14":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1991-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"130","bibliographicPageStart":"118","bibliographicVolumeNumber":"4","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":"Yanai, Keizo","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kojima, Hideyasu","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":"Yamato-74063 (Y-74063) was found in Antarctica by the Japanese Antarctic Research Expedition in November 1974. Y-74063 is an almost complete, smoothly rounded stone weighing 35.4g covered with brownish-black fusion crust. The thin section shows that this meteorite has generally poorly traced chondritic texture and \"chondrules\" merge into the recrystallized matrix. Compositions of olivine and low-Ca pyroxene are homogeneous and average Fa_<10.9> and Fs_<10.7> respectively. These compositions strongly suggest that Y-74063 is not similar to all the previously known chondrites. Bulk analysis shows that the total iron content of Y-74063 is the lowest of the ordinary chondrite groups, and the abundance of troilite is much higher than those of all ordinary chondrites. Texture, bulk and mineral compositions of Y-74063 indicate that this meteorite is identified as chondrite and classified into a new type of chondrite group which is between E and H chondrite groups. Y-74063 is similar to Acapulco, ALH-77081 and ALH-78230 in mineral composition which occupies the intermediate site between the E and H chondrites. But the latter 3 chondrites have no evidence of chondrules in spite of \"chondritic\" texture, mineral assemblage and compositions. Bulk composition indicates that Y-74063 differs from Acapulco-type meteorites and all previously known chondrite groups. The presence of Y-74063 suggests that there is a great possibility of the existence of more unknown meteorite types in Antarctica, and non-Antarctic regions.","subitem_description_type":"Other"}]},"item_1_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15094/00004540","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":"National Institute of Polar Research"},{"subitem_text_language":"en","subitem_text_value":"National Institute of Polar Research"}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"1991-03-01"}],"displaytype":"detail","filename":"KJ00000036346.pdf","filesize":[{"value":"2.1 MB"}],"format":"application/pdf","licensetype":"license_6","mimetype":"application/pdf","url":{"label":"KJ00000036346","url":"https://nipr.repo.nii.ac.jp/record/4540/files/KJ00000036346.pdf"},"version_id":"6a6db9ef-5872-438b-86dc-53179a58ed7c"}]},"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":"Yamato-74063: Chondritic meteorite classified between E and H chondrite groups","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Yamato-74063: Chondritic meteorite classified between E and H chondrite groups"}]},"item_type_id":"1","owner":"4","path":["588"],"pubdate":{"attribute_name":"公開日","attribute_value":"1991-03-01"},"publish_date":"1991-03-01","publish_status":"0","recid":"4540","relation_version_is_last":true,"title":["Yamato-74063: Chondritic meteorite classified between E and H chondrite groups"],"weko_creator_id":"4","weko_shared_id":4},"updated":"2023-07-25T12:19:24.763654+00:00"}