{"created":"2023-07-25T11:03:10.234470+00:00","id":5996,"links":{},"metadata":{"_buckets":{"deposit":"080d8f3a-c7d4-4841-a4a2-bb67f2703ff7"},"_deposit":{"created_by":4,"id":"5996","owners":[4],"pid":{"revision_id":0,"type":"depid","value":"5996"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00005996","sets":["1259:1260:1264:773:778"]},"author_link":["9904","43736","43737"],"item_1_biblio_info_14":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2001-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"46","bibliographicPageStart":"28","bibliographicVolumeNumber":"14","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":"Saiki,Kazuto","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Takeda,Hiroshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ishii,Teruaki","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":"Cumulate eucrites and noncumulate (ordinary) eucrites are considered to have come from one (or similar) parent body and to have formed the crust of the Vesta-like asteroid. However, their relationship is not well established as to whether they have crystallized in a different magma or have differentiated within the same magma. We studied mineralogically Yamato-791192,which is a unique HED breccia with abundant cumulate eucrite and a rare ordinary eucrite clasts. The characteristics of pyroxene suggest that the polymict breccia was generated by gathering locally ordinary eucrites and cumulate eucrites. On the other hand, the Fe/Mg distribution shows that the liquid coexisting with most cumulate eucrites was too Fe-rich (mg [=Mg/ (Mg+Fe) atomic ratio]=0.25-0.30) to have crystallized as ordinary eucrites (mg=0.35-0.40). We also applied the liquid trapping model of fractional crystallization and calculate the change of mg of liquid and solid during fractional crystallization. This calculation suggests that if the cumulates include a large amount of residual liquid (40-50%), a cumulate eucrite (mg=0.50-0.55) could crystallize from ordinary eucritic liquid (mg=0.35-0.40). In conclusion, cumulate eucrites probably crystallized directly from slightly evolved liquid, or they are produced by fractional crystallization with a large amount of trapped liquid.","subitem_description_type":"Other"}]},"item_1_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15094/00005996","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":"Research Institute of Materials and Resources, Faculty of Engineering and Resource Science, Akita University/Research Institute, Chiba Institute of Technology/Ocean Research Institute, 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":"2001-03-01"}],"displaytype":"detail","filename":"KJ00000040988.pdf","filesize":[{"value":"1.7 MB"}],"format":"application/pdf","licensetype":"license_6","mimetype":"application/pdf","url":{"label":"KJ00000040988","url":"https://nipr.repo.nii.ac.jp/record/5996/files/KJ00000040988.pdf"},"version_id":"f878a276-ed86-4d0e-be87-06f87db3ec9b"}]},"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":"Mineralogy of Yamato-791192, HED breccia and relationship between cumulate eucrites and ordinary eucrites","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Mineralogy of Yamato-791192, HED breccia and relationship between cumulate eucrites and ordinary eucrites"}]},"item_type_id":"1","owner":"4","path":["778"],"pubdate":{"attribute_name":"公開日","attribute_value":"2001-03-01"},"publish_date":"2001-03-01","publish_status":"0","recid":"5996","relation_version_is_last":true,"title":["Mineralogy of Yamato-791192, HED breccia and relationship between cumulate eucrites and ordinary eucrites"],"weko_creator_id":"4","weko_shared_id":4},"updated":"2023-07-25T12:07:38.958423+00:00"}