{"created":"2023-07-25T11:03:06.472805+00:00","id":5922,"links":{},"metadata":{"_buckets":{"deposit":"14658653-52d8-403e-bf16-1766afdc989a"},"_deposit":{"created_by":4,"id":"5922","owners":[4],"pid":{"revision_id":0,"type":"depid","value":"5922"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00005922","sets":["1259:1260:1264:773:775"]},"author_link":["23243","65189","1369"],"item_1_biblio_info_14":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1998-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"31","bibliographicPageStart":"18","bibliographicVolumeNumber":"11","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":"Yamaguchi, Akira ","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Scott, Edward R.D.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Keil, Klaus","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":"We have studied Yamato (Y)-790964 and-790143,which are unusual paired impact-melted LL chondrites. Some petrologic aspects of these impact melt rocks are similar to those of the impact melted L-chondrite, Ramsdorf; these meteorites experienced nearly total melting, yet partly preserve chondritic textures. Olivine and chromite grains in Y-790964 and olivine in Y-790143 are the only relicts of the precursor materials; they were solid clasts during impact melting. All other portions (i.e., chondrules and matrices) were totally melted. It appears that the chondrule ghosts, which are mainly composed of very fine-grained igneous-textured pyroxene, minor olivine and other phases, were melted and crystallized in situ, without significant mixing with less viscous melts. Partial resorption of olivines and chromites suggests that the post-shock temperature could be >∿1600℃. The minor local differences in mineralogy appear to be consistent with small spatial variations in thermal history. Evidence of complex injection of troilite, Fe, Ni-metal and feldspathic glass into the relict minerals suggests that the precursor rock was shocked in situ. The shock pressure might have been >75 or 90GPa for a non-porous precursor rock or >20-40GPa for a porous rock.","subitem_description_type":"Other"}]},"item_1_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15094/00005922","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":"Hawai'i Institute of Geophysics and Planetology, School of Ocean and Earth Science and Technology, University of Hawai'i at Manoa/Also associated with the Hawai'i Center for Volcanology/Also associated with the Hawai'i Center for Volcanology"}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"1998-03-01"}],"displaytype":"detail","filename":"KJ00000040914.pdf","filesize":[{"value":"1.9 MB"}],"format":"application/pdf","licensetype":"license_6","mimetype":"application/pdf","url":{"label":"KJ00000040914","url":"https://nipr.repo.nii.ac.jp/record/5922/files/KJ00000040914.pdf"},"version_id":"b933ef67-8bc6-4b0d-a136-3e8e787ef750"}]},"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":"Origin of unusual impact melt rocks, Yamato-790964 and 790143 (LL-chondrites)","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Origin of unusual impact melt rocks, Yamato-790964 and 790143 (LL-chondrites)"}]},"item_type_id":"1","owner":"4","path":["775"],"pubdate":{"attribute_name":"公開日","attribute_value":"1998-03-01"},"publish_date":"1998-03-01","publish_status":"0","recid":"5922","relation_version_is_last":true,"title":["Origin of unusual impact melt rocks, Yamato-790964 and 790143 (LL-chondrites)"],"weko_creator_id":"4","weko_shared_id":4},"updated":"2023-07-25T12:08:37.982204+00:00"}