{"created":"2023-07-25T10:59:49.432608+00:00","id":1577,"links":{},"metadata":{"_buckets":{"deposit":"486f76db-0934-4ea7-b837-554c65f81c46"},"_deposit":{"created_by":4,"id":"1577","owners":[4],"pid":{"revision_id":0,"type":"depid","value":"1577"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00001577","sets":["1:356:384"]},"author_link":["1721","836","1086","65501"],"item_1_biblio_info_14":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1983-12","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"402","bibliographicPageStart":"389","bibliographicVolumeNumber":"30","bibliographic_titles":[{"bibliographic_title":"Memoirs of National Institute of Polar Research. Special issue"}]}]},"item_1_creator_8":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Fujii, Naoyuki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ito, Keisuke","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Miyamoto, Masamichi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hamano, Yozo","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":"Magnetic susceptibility anisotropy is measured for various petrologic types of ordinary chondrites from Antarctica, which are three H types : ALH-77233 (H4), ALH-77182 (H5) and ALH-77115 (H6); four L types : Y-74191 (L3), ALH-77230 (L4), ALH-77254 (L5) and ALH-77231 (L6); and four LL types : Y-75258 (LL6), Y-790519 (LL), Y-790723 (LL) and Y-790964 (LL). The last three are shock-melted chondrites and have high strengths, whereas Y-75258 has a very low strength. Magnetic susceptibility anisotropy appears to be low for LL chondrites and seems to bear no correlation with porosity and petrologic types among H and L chondrites. Both prolate and oblate susceptibility ellipsoids are obtained. To characterize the shape irregularity of metallic grains, the Fourier descriptors representation with an arc-length coordinate system is introduced for two-dimensional outline of grains. Unlike the normally used polar coordinate system, this method is applicable to any complicated shape of grain boundary. Some advantages of the present method are demonstrated for several selected Fe-Ni grains from the same specimens as those used for the magnetic and the strength measurements. Newly proposed parameters representing deviations from circular and elliptical shapes are shown to distinguish different complex outlines of Fe-Ni grains.","subitem_description_type":"Other"}]},"item_1_source_id_13":{"attribute_name":"雑誌書誌ID","attribute_value_mlt":[{"subitem_source_identifier":"AA00733561","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":"Department of Earth Sciences, Faculty of Science, Kobe University"},{"subitem_text_language":"en","subitem_text_value":"Department of Earth Sciences, Faculty of Science, Kobe University"},{"subitem_text_language":"en","subitem_text_value":"Department of Pure and Applied Sciences, College of General Education, University of Tokyo"},{"subitem_text_language":"en","subitem_text_value":"Geological Institute, Faculty of Science, 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":"1983-12-01"}],"displaytype":"detail","filename":"KJ00000012210.pdf","filesize":[{"value":"2.2 MB"}],"format":"application/pdf","licensetype":"license_6","mimetype":"application/pdf","url":{"url":"https://nipr.repo.nii.ac.jp/record/1577/files/KJ00000012210.pdf"},"version_id":"8c75b533-f9a3-41ea-84ff-57fca5323cac"}]},"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":"Shape of Fe-Ni grains and magnetic susceptibility anisotropy in Antarctic chondrites","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Shape of Fe-Ni grains and magnetic susceptibility anisotropy in Antarctic chondrites","subitem_title_language":"en"}]},"item_type_id":"1","owner":"4","path":["384"],"pubdate":{"attribute_name":"公開日","attribute_value":"1983-12-01"},"publish_date":"1983-12-01","publish_status":"0","recid":"1577","relation_version_is_last":true,"title":["Shape of Fe-Ni grains and magnetic susceptibility anisotropy in Antarctic chondrites"],"weko_creator_id":"4","weko_shared_id":4},"updated":"2023-07-25T13:47:13.383524+00:00"}