{"created":"2023-07-27T06:40:29.454656+00:00","id":29330,"links":{},"metadata":{"_buckets":{"deposit":"bd9919da-45f0-4fc6-900a-76d97b111a82"},"_deposit":{"created_by":3,"id":"29330","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"29330"},"status":"published"},"_oai":{"id":"oai:kanazawa-u.repo.nii.ac.jp:00029330","sets":["1979:1980:1981"]},"author_link":["50405","1431","1300","50404","15862"],"item_4_biblio_info_8":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2002-01-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"9","bibliographicPageEnd":"556","bibliographicPageStart":"545","bibliographicVolumeNumber":"108","bibliographic_titles":[{"bibliographic_title":"地質学雑誌 = Journal of the Geological Society of Japan"}]}]},"item_4_description_21":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The piston cored sediment KT96-17 P-2 from the southeastern marginal part of the Oki Trough in the southern Japan Sea contained five volcanic ash layers. We studied the morphologic feature and chemical composition of volcanic glass shards and mineral composition in each ash layer. Between the Aira-Tn Ash (AT) and Kikai-Akahoya Ash (K-Ah) layers in the core, we recognized two ash fall deposits derived from the Ulleung Island. The glass shards from these two ash fall deposits have different chemical composition. This fact suggests that the Ulleung-Oki Ash (U-Oki) which has been regarded as one of important time-marker tephras in the paleoceanographic study of the Japan Sea might not be a unique layer but comprised of these two ash fall deposits from the Ulleung Island. It also implies that the U-Oki Ash might possibly be correlatable not only to U-2 but also to U-3 or U-4, which are three thick pumice layers between the AT and K-Ah layers in the Ulleung Island. We also recognized the Daisen-Kusadanihara Pumice (KsP) layer between the AT and K-Ah Ash layers in the core. AMS 14C datings were conducted on planktic foraminiferal tests picked from the horizons above and below the KsP layer in the core. The AMS 14C ages were 18, 070±50 yrBP (GX-26361) and 18, 470±160 yrBP (GX-25558), respectively. The eruption age of KsP was estimated to be 20, 260-22, 130 cal yrBP (2 sigma range) by calibration to calendar ages using CALIB 4.3 program. 日本海南部の隠岐トラフ南東縁部で採取されたKT96-17 P-2コアには5枚の火山灰層が挟在する.これらの火山灰層について火山ガラスの形態や主成分化学組成,および鉱物組成を調べた結果,ATとK-Ahの両層準の間に鬱陵島起源の降下火山灰層を2枚見い出し,それらの火山ガラスの主成分組成が互いに異なることを明らかにした.日本海の古海洋学的研究において重要な年代指標とされるU-Okiはこれらが混同されている可能性があり,従来U-0kiの対比候補とされていた鬱陵島の醗陵降下テフラU-2だけではなくU-3やU-4も広域に分布した可能性が指摘される.また,本コアに挟在するKsPの直上ならびに直下の層準から採取した浮遊性有孔虫殻を試料としてAMS 14C年代を測定した結果,約18,000 yr BPの年代値を得た.KsPの噴出年代は約20,000～22,000cal yrBP程度と見積もられる.","subitem_description_type":"Abstract"}]},"item_4_description_5":{"attribute_name":"提供者所属","attribute_value_mlt":[{"subitem_description":"環日本海域環境研究センター","subitem_description_type":"Other"}]},"item_4_publisher_17":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"日本地質学会 = Geological Society of Japan"}]},"item_4_relation_12":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"10.5575/geosoc.108.545","subitem_relation_type_select":"DOI"}}]},"item_4_relation_28":{"attribute_name":"関連URI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://www.geosociety.jp/","subitem_relation_type_select":"URI"}},{"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://www.jstage.jst.go.jp/browse/geosoc","subitem_relation_type_select":"URI"}}]},"item_4_rights_23":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"Copyright © 日本地質学会 Geological Society of Japan"}]},"item_4_source_id_11":{"attribute_name":"NCID","attribute_value_mlt":[{"subitem_source_identifier":"AN00141768","subitem_source_identifier_type":"NCID"}]},"item_4_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0016-7630","subitem_source_identifier_type":"ISSN"}]},"item_4_version_type_25":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"堂満, 華子"}],"nameIdentifiers":[{},{},{},{}]},{"creatorNames":[{"creatorName":"椎原, 美紀"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"鳥井, 真之"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"塚脇, 真二"}],"nameIdentifiers":[{},{},{},{}]},{"creatorNames":[{"creatorName":"尾田, 太良"}],"nameIdentifiers":[{},{},{},{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-10-05"}],"displaytype":"detail","filename":"SC-PR-TSUKAWAKI-S-545.pdf","filesize":[{"value":"1.6 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"SC-PR-TSUKAWAKI-S-545.pdf","url":"https://kanazawa-u.repo.nii.ac.jp/record/29330/files/SC-PR-TSUKAWAKI-S-545.pdf"},"version_id":"ccf5493f-5b37-4ce7-a829-87293099a9ec"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"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":"日本海南部KT96-17 P-2コアの火山灰層序: 大山草谷原軽石層(KsP)の噴出年代","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"日本海南部KT96-17 P-2コアの火山灰層序: 大山草谷原軽石層(KsP)の噴出年代"},{"subitem_title":"Tephrostratigraphy of the piston cored sediment KT96-17 P-2 in the southern Japan Sea: the eruption age of Daisen-Kusadanihara Pumice (KsP)","subitem_title_language":"en"}]},"item_type_id":"4","owner":"3","path":["1981"],"pubdate":{"attribute_name":"公開日","attribute_value":"2017-10-05"},"publish_date":"2017-10-05","publish_status":"0","recid":"29330","relation_version_is_last":true,"title":["日本海南部KT96-17 P-2コアの火山灰層序: 大山草谷原軽石層(KsP)の噴出年代"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-07-27T20:37:13.711678+00:00"}