{"created":"2023-07-25T11:01:10.640369+00:00","id":3106,"links":{},"metadata":{"_buckets":{"deposit":"bfcf3cf9-f89c-48d3-ab54-07ba73d883ab"},"_deposit":{"created_by":4,"id":"3106","owners":[4],"pid":{"revision_id":0,"type":"depid","value":"3106"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00003106","sets":["1259:1260:1265:435:440"]},"author_link":["43514","43513","4445","43515","43516","43512"],"item_1_biblio_info_14":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2002-10","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"36","bibliographicPageStart":"17","bibliographicVolumeNumber":"15","bibliographic_titles":[{"bibliographic_title":"Polar geoscience"}]}]},"item_1_creator_8":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Crowe,WarwickA.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Osanai,Yasuhito","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Toyoshima,Tsuyoshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Owada,Masaaki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tsunogae,Toshiaki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hokada ,Tomokazu","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":"Tonagh Island within the highest-grade zone of the Napier Complex, East Antarctica, consists of a strongly layered sequence of quartzofeldspathic gneiss, mafic granulite and ultramafic gneiss subdivided into five lithostratigraphic units by major NE-SW to E-W trending steeply-dipping D_6 shear zones. D_6 shear zones cut the principal foliation defined by D_1 and D_2 structures associated with the ultrahigh-temperature metamorphism. Zircons from two mylonite samples with moderate NE pitching mineral lineations within a D_6 shear zone and a D_6 mylonite and ultramylonite sample from within high strain zones that have an overprinting sub-horizontal mineral lineation were analyzed. All samples have anhydrous mineral assemblages with a late textural association of biotite, which formed pre- to syn- a secondary overprinting high temperature mylonitic fabric. Zircons in all samples contain a structureless zone that constitutes most of the grain area and commonly have a relict discordant, oscillatory-zoned core. The core may be obscured to the extent where only a structureless or an indistinct remnant remains These internal patterns are consistent with recrystallisation and annealing processes resulting in resetting of the U-Pb system during mylonitsation involving possibly three events between ca. 2550 Ma and ca. 2470 Ma. The timing of D_6 mylonitisation between ca. 2470-2550 Ma on Tonagh Island requires an earlier timing for UHT metamorphism. This is consistent with regional models that attribute UHT metamorphism to pre- ca. 2550 Ma tectonothermal events in the Napier Complex.","subitem_description_type":"Other"}]},"item_1_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15094/00003106","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":"AA1130866X","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":"Tectonics Special Research Centre, Department of Geology and Geophysics, University of Western Australia/Department of Earth Sciences, Okayama University/Graduate School of Science and Technology, Niigata University/Department of Earth Sciences, Yamaguchi University/Institute of Geoscience, the University of Tsukuba/Department of Geology, National Science Museum"}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2002-10-01"}],"displaytype":"detail","filename":"KJ00000044224.pdf","filesize":[{"value":"2.7 MB"}],"format":"application/pdf","licensetype":"license_6","mimetype":"application/pdf","url":{"label":"KJ00000044224","url":"https://nipr.repo.nii.ac.jp/record/3106/files/KJ00000044224.pdf"},"version_id":"a9c75694-82f3-48bf-bc15-50763ef70822"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Napier Complex","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Tonagh Island","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"SHRIMP geochronology","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"mylonite","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"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":"SHRIMP geochronology of a mylonite zone on Tonagh Island: characterisation of the last high-grade tectonothermal event in the Napier Complex, East Antarctica","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"SHRIMP geochronology of a mylonite zone on Tonagh Island: characterisation of the last high-grade tectonothermal event in the Napier Complex, East Antarctica"}]},"item_type_id":"1","owner":"4","path":["440"],"pubdate":{"attribute_name":"公開日","attribute_value":"2002-10-01"},"publish_date":"2002-10-01","publish_status":"0","recid":"3106","relation_version_is_last":true,"title":["SHRIMP geochronology of a mylonite zone on Tonagh Island: characterisation of the last high-grade tectonothermal event in the Napier Complex, East Antarctica"],"weko_creator_id":"4","weko_shared_id":4},"updated":"2023-07-25T12:34:57.530994+00:00"}