{"created":"2023-07-25T10:59:43.911889+00:00","id":1467,"links":{},"metadata":{"_buckets":{"deposit":"3bb92580-2a34-49c4-9e6c-5ffccb7d8f5d"},"_deposit":{"created_by":4,"id":"1467","owners":[4],"pid":{"revision_id":0,"type":"depid","value":"1467"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00001467","sets":["1:356:382"]},"author_link":["20701","58166"],"item_1_biblio_info_14":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1983-10","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"68","bibliographicVolumeNumber":"28","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":"Kawasaki, Ichiro","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kawahara, Yasutoshi","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":"This paper presents an analysis of transform fault (TF) events along the Eltanin fracture zone (FZ) and the Udintsev FZ, the Pacific-Antarctic Ridge. We redetermined fault plane solutions and seismic moments of 12 TF events by moment tensor inversion (FITCH et al. : J. Geophys. Res., 85,3817,1980) using Claerbout's Robust modelling (CLAERBOUT and MUIR : Geophysics, 38,826,1973). Corrections for physical dispersion and instrumental response were made by a simple method same as that of CHUNG and KANAMORI (Phys. Earth Planet. Inter., 23,134,1980). Conclusions are as follows : (1) Events for which fault plane solutions were well-constrained were all left-lateral strike-slip fault events, which is consistent with the concept of the transform fault. (2) Total amount of the seismic moments released at the Eltanin FZ, the Pacific-Antarctic Ridge, is 6-7×(10)^<26>dyn・cm, including all of the TF events of the surface wave magnitude Ms greater than 5.8. The estimate is 8-10% of an amount of 7.5×(10)^<26>dyn・cm predicted by a simple plate kinematics with parameters of a TF length of 1300km, a crustal thickness of 10km, a rigidity of 4×(10)^<11>dyn・cm, a spreading rate of 9cm/yr and the period of 16 years. This indicates that the main part of transform fault movements was released aseismically at the Eltanin FZ. The conclusion (2) seems to be a proof for the conclusion that the fast-spreading center like the Pacific-Antarctic Ridge is hot and plastic because hot mantle materials are being supplied by the fast-moving mantle-convection current.","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, Toyama University"},{"subitem_text_language":"en","subitem_text_value":"Department of Earth Sciences, Toyama University"}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"1983-10-01"}],"displaytype":"detail","filename":"KJ00000012100.pdf","filesize":[{"value":"69.1 kB"}],"format":"application/pdf","licensetype":"license_6","mimetype":"application/pdf","url":{"label":"KJ00000012100","url":"https://nipr.repo.nii.ac.jp/record/1467/files/KJ00000012100.pdf"},"version_id":"a757e946-97e6-49d2-bcd3-7c0ac4037801"}]},"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":"Mode of seismic moment release at the Pacific-Antarctic Ridge (abstract)","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Mode of seismic moment release at the Pacific-Antarctic Ridge (abstract)","subitem_title_language":"en"}]},"item_type_id":"1","owner":"4","path":["382"],"pubdate":{"attribute_name":"公開日","attribute_value":"1983-10-01"},"publish_date":"1983-10-01","publish_status":"0","recid":"1467","relation_version_is_last":true,"title":["Mode of seismic moment release at the Pacific-Antarctic Ridge (abstract)"],"weko_creator_id":"4","weko_shared_id":4},"updated":"2023-07-25T13:49:23.610732+00:00"}