{"created":"2023-07-25T11:02:16.854667+00:00","id":4493,"links":{},"metadata":{"_buckets":{"deposit":"6777e45d-0983-4096-8d44-312738148952"},"_deposit":{"created_by":4,"id":"4493","owners":[4],"pid":{"revision_id":0,"type":"depid","value":"4493"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00004493","sets":["1259:1260:1264:584:586"]},"author_link":["41","447"],"item_1_biblio_info_14":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1989-10","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"325","bibliographicPageStart":"310","bibliographicVolumeNumber":"2","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":"Nagata, Takesi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Funaki, Minoru","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 hysteresis cycles of 9 ordinary chondrites and 10 achondrites, collected mainly from Antarctica, are analyzed on the basis of a newly proposed model of a non-interactive magnetic binary system, by taking into account their thermomagnetic characteristics for identifying ferromagnetic phases involved. All the chondrites and achondrites examined consist of a high-coercivity (a) component and a low-coercivity (b) component. In ordinary chondrites, the (a) component is often identified to be tetrataenite (tetragonal-ordered crystal of FeNi) having an apparent coercive force H^<(a)>_C&gsim;10^3 Oe (TT-type phase), while in other chondrites the (a) component comprises fine grains of shape-anisotropic single-domain structure (A. SD-type phase) having H^<(a)>_C=(2&acd;5)×10^2 Oe. The (b) component consists of mostly multi-domain grains of kamacite and/or taenite of H^<(b)>_C&lsim;20 Oe. In most achondrites, the (a) component comprises A. SD-type phase of H^<(a)>_C=(2&acd;5)×10^2 Oe except a special case consisting of a small amount of tetrataenite. The structure of the (b) component in achondrites is the same as in ordinary chondrites. An anomalous hump-shape rise in saturation magnetization (I_s) between 330℃ and Curie point of taenite (540&acd;590℃) during the initial heating process is found in diogenites and a eucrite. The thermomagnetic hump is considered here to be due to an increase of A. SD-type phase of taenite associated with a relatively smaller increase of the (b) component multi-domain phase. However, a possible metallographical interpretation of the hump phenomenon has not yet been obtained.","subitem_description_type":"Other"}]},"item_1_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15094/00004493","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":"1989-10-01"}],"displaytype":"detail","filename":"KJ00000036299.pdf","filesize":[{"value":"1.9 MB"}],"format":"application/pdf","licensetype":"license_6","mimetype":"application/pdf","url":{"label":"KJ00000036299","url":"https://nipr.repo.nii.ac.jp/record/4493/files/KJ00000036299.pdf"},"version_id":"60867849-481d-444b-a084-50e88d2a683a"}]},"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":"Magnetic analysis of Antactic ordinary chondrites and achondrites on the basis of a magnetic binary system model","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Magnetic analysis of Antactic ordinary chondrites and achondrites on the basis of a magnetic binary system model"}]},"item_type_id":"1","owner":"4","path":["586"],"pubdate":{"attribute_name":"公開日","attribute_value":"1989-10-01"},"publish_date":"1989-10-01","publish_status":"0","recid":"4493","relation_version_is_last":true,"title":["Magnetic analysis of Antactic ordinary chondrites and achondrites on the basis of a magnetic binary system model"],"weko_creator_id":"4","weko_shared_id":4},"updated":"2023-07-25T12:19:57.270852+00:00"}