{"_buckets": {"deposit": "520e1454-32eb-4336-8c03-4ec0c427a245"}, "_deposit": {"created_by": 4, "id": "3086", "owners": [4], "pid": {"revision_id": 0, "type": "depid", "value": "3086"}, "status": "published"}, "_oai": {"id": "oai:nipr.repo.nii.ac.jp:00003086", "sets": ["439"]}, "author_link": ["43589", "19655", "18471", "65711", "21584", "17217", "4398"], "item_1_biblio_info_14": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2001-10", "bibliographicIssueDateType": "Issued"}, "bibliographicPageEnd": "87", "bibliographicPageStart": "75", "bibliographicVolumeNumber": "14", "bibliographic_titles": [{"bibliographic_title": "Polar geoscience"}]}]}, "item_1_creator_8": {"attribute_name": "著者名(英)", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Owada, Masaaki", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "17217", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Osanai, Yasuhito ", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "4398", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Tsunogae, Toshiaki", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "21584", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Hamamoto, Takuji", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "43589", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kagami, Hiroo", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "65711", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Toyoshima, Tsuyoshi", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "19655", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Hokada, Tomokazu", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "18471", "nameIdentifierScheme": "WEKO"}]}]}, "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": "Proterozoic Sm-Nd garnet ages were dated from a garnet-bearing quartzo-feldspathic gneiss (Grt-felsic gneiss) and an iron rich garnet-pyroxene gneiss (Fe-rich Grt-Py gneiss) in the northern part of Tonagh Island, the Napier Complex. The Grtfelsic gneiss occurs as a member of layered gneiss. The Fe-rich Grt-Py gneiss appears as a block in the felsic gneiss. Since the layered gneiss contains a critical mineral assemblage of ultrahigh-temperature (UHT) metamorphism such as sapphirine+quartz, the Grt-felsic and the Fe-rich Grt-Py gneisses have undergone UHT metamorphism whose age is believed to be Late Archaean. The inclination line connecting with garnet and whole rock in the Grt-felsic gneiss yields an age of 1897 Ma in the Sm-Nd system. The internal isochron using garnet, pyroxenes and whole rock for the Fe-rich Grt-Py gneiss gives an age of 1557±35 Ma. Both Sm-Nd internal isochron ages correspond to Early Proterozoic. Garnet-quartz symplectite and quartz occur between orthopyroxene and plagioclase in the Grt-felsic gneiss. This texture indicates the following reaction: orthopyroxene+plagioclase=garnet+quartz. The garnet in the Fe-rich Grt-Py gneiss occurs as interstitial mineral with small grained clinopyroxene and quartz. Taking reaction textures into account, the garnet forming reactions in the Grt-felsic and the Fe-rich Grt-Py gneisses would occur during retrograde events after UHT peak metamorphism. The ages of c. 1900 and c. 1550 Ma would therefore reflect 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": "10.15094/00003086", "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": "Department of Earth Sciences, Yamaguchi University/Department of Earth Sciences, Okayama University/Institute of Geoscience, the University of Tsukuba/Graduate School of Science and Technology, Niigata University/Graduate School of Science and Technology, Niigata University/Graduate School of Science and Technology, Niigata University/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": "2001-10-01"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "KJ00000044204.pdf", "filesize": [{"value": "1.6 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_6", "mimetype": "application/pdf", "size": 1600000.0, "url": {"label": "KJ00000044204", "url": "https://nipr.repo.nii.ac.jp/record/3086/files/KJ00000044204.pdf"}, "version_id": "ed232940-ec19-4b37-a88e-6b1189dd63ee"}]}, "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": "Sm-Nd garnet age", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Proterozoic", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "retrograde metamorphism", "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": "Sm-Nd garnet ages of retrograde garnet bearing granulites from Tonagh Island in the Napier Complex, East Antarctica: A preliminary study", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Sm-Nd garnet ages of retrograde garnet bearing granulites from Tonagh Island in the Napier Complex, East Antarctica: A preliminary study"}]}, "item_type_id": "1", "owner": "4", "path": ["439"], "permalink_uri": "https://doi.org/10.15094/00003086", "pubdate": {"attribute_name": "公開日", "attribute_value": "2001-10-01"}, "publish_date": "2001-10-01", "publish_status": "0", "recid": "3086", "relation": {}, "relation_version_is_last": true, "title": ["Sm-Nd garnet ages of retrograde garnet bearing granulites from Tonagh Island in the Napier Complex, East Antarctica: A preliminary study"], "weko_shared_id": 4}