{"created":"2023-07-25T11:06:43.784821+00:00","id":10221,"links":{},"metadata":{"_buckets":{"deposit":"d3faf958-fe80-41f0-9b9a-121cc7f940f2"},"_deposit":{"created_by":27,"id":"10221","owners":[27],"pid":{"revision_id":0,"type":"depid","value":"10221"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00010221","sets":[]},"author_link":["19633","19653","19650","19635","19634","19655","19654","19651","19637","19632","19652","19636"],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2011-09","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageEnd":"359","bibliographicPageStart":"345","bibliographicVolumeNumber":"5","bibliographic_titles":[{"bibliographic_title":"Polar Science"},{"bibliographic_title":"Polar science","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"This paper reports the first evidence of ultrahigh-temperature (UHT) metamorphism from the Sør Rondane Mountains, eastern Dronning Maud Land, East Antarctica, which is evident as orthopyroxene + spinel symplectite in an amphibolitized mafic granulite. The granulite consists of olivine, orthopyroxene, clinopyroxene, pargasitic amphibole, plagioclase, and ilmenite, and it possesses a within-plate alkali basalt signature. The local bulk chemical composition of symplectite, major and trace element compositions, and thermodynamic calculations for the symplectite, suggest the presence of garnet at the high-pressure stage and that the symplectite formed from garnet, olivine, and primary orthopyroxene by decompression from more than 12 kbar at 1000 °C. The granulite records a subsequent amphibolite-facies overprint (<700 °C at <6 kbar) that involved the chemical re-equilibration of several phases. The obtained pressure–temperature (P–T) conditions and P–T path are different from the UHT metamorphism from the Schirmacher Hills, central Dronning Maud Land, which is considered to have occurred in a back-arc tectonic setting. The relatively high-P conditions and the decompression path reconstructed in the present study are similar to those reported for southern India, Sri Lanka, and part of northeastern Mozambique, possibly reflecting continental thickening and exhumation during the main collision event between East and West Gondwana.","subitem_description_type":"Abstract"}]},"item_10001_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"東南極・セールロンダーネ山地に分布する変成岩類の最高温度・圧力条件を推定するために，モレーンの転石から見出された斜方輝石＋スピネルシンプレクタイトを含む苦鉄質変成岩の精密解析を行った．その結果，同変成岩が1000℃・12 kbar以上の超高温条件から減圧し，700℃・6 kbar以下の角閃岩相で再平衡に達したことが明らかとなった．これらの温度・圧力条件や履歴は，東南極・シルマッハヒルズの高度変成岩よりむしろ，南インド，スリランカ，モザンビークに分布する変成岩類のそれと類似し，東・西ゴンドワナ大陸の衝突による大陸地殻のもぐり込みから上昇過程を表していると考えられる．","subitem_description_type":"Other"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"国立極地研究所"}]},"item_10001_relation_12":{"attribute_name":"論文ID（NAID）","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"110008667905","subitem_relation_type_select":"NAID"}}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"10.1016/j.polar.2011.03.005"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://doi.org/10.1016/j.polar.2011.03.005","subitem_relation_type_select":"DOI"}}]},"item_10001_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12240481","subitem_source_identifier_type":"NCID"}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"18739652","subitem_source_identifier_type":"ISSN"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Nakano, Nobuhiko"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Osanai, Yasuhito"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Baba, Sotaro"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Adachi, Tatsuro"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hokada, Tomokazu"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Toyoshima, Tsuyoshi"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nakano, Nobuhiko","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Osanai, Yasuhito","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Baba, Sotaro","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Adachi, Tatsuro","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hokada, Tomokazu","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Toyoshima, Tsuyoshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Orthopyroxene + spinel symplectite","subitem_subject_scheme":"Other"},{"subitem_subject":"Ultrahigh-temperature metamorphism","subitem_subject_scheme":"Other"},{"subitem_subject":"Sør Rondane Mountains","subitem_subject_scheme":"Other"},{"subitem_subject":"East African-Antarctic Orogen","subitem_subject_scheme":"Other"},{"subitem_subject":"Orthopyroxene + spinel symplectite","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Ultrahigh-temperature metamorphism","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Sør Rondane Mountains","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"East African-Antarctic Orogen","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":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Inferred ultrahigh-temperature metamorphism of amphibolitized olivine granulite from the Sør Rondane Mountains, East Antarctica","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Inferred ultrahigh-temperature metamorphism of amphibolitized olivine granulite from the Sør Rondane Mountains, East Antarctica"},{"subitem_title":"Inferred ultrahigh-temperature metamorphism of amphibolitized olivine granulite from the Sør Rondane Mountains, East Antarctica","subitem_title_language":"en"}]},"item_type_id":"10001","owner":"27","path":["1352"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-10-16"},"publish_date":"2014-10-16","publish_status":"0","recid":"10221","relation_version_is_last":true,"title":["Inferred ultrahigh-temperature metamorphism of amphibolitized olivine granulite from the Sør Rondane Mountains, East Antarctica"],"weko_creator_id":"27","weko_shared_id":27},"updated":"2023-07-25T14:15:07.804406+00:00"}