{"created":"2023-07-27T07:01:15.938763+00:00","id":61493,"links":{},"metadata":{"_buckets":{"deposit":"2a94afd0-3649-4e5c-a55a-6dfa94ee8b3d"},"_deposit":{"created_by":18,"id":"61493","owners":[18],"pid":{"revision_id":0,"type":"depid","value":"61493"},"status":"published"},"_oai":{"id":"oai:kanazawa-u.repo.nii.ac.jp:00061493","sets":["2812:2813:2845"]},"author_link":["106293"],"item_9_biblio_info_8":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1990-03-19","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"2p.","bibliographicVolumeNumber":"1987 – 1988","bibliographic_titles":[{"bibliographic_title":"昭和63(1988)年度 科学研究費補助金 一般研究(C) 研究成果報告書概要"},{"bibliographic_title":"1988 Fiscal Year Final Research Report Summary","bibliographic_titleLang":"en"}]}]},"item_9_creator_33":{"attribute_name":"著者別表示","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{}],"nameIdentifiers":[{},{}]}]},"item_9_description_21":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"本研究は、本州南岸の沖合から数本の海底コアを採取し、それらに含まれる各種微化石〔浮遊性有孔虫(大場)、底生有孔虫(加藤)、石灰質ナンノプランクトン(高山)、珪藻(谷村)、放散虫(山内:研究協力者)〕の群集解析、有孔虫殼の酸素・炭素同位体比(大場)および火山灰の年代決定(大村)を行って、第四紀後期における黒潮前線の移動と海洋古環境の復元を行うことを目的として行われた。また、古環境解析に極めて重要な日本海溝から回収されたセジメント・トラップ中の珪藻群集解析(谷村)および有孔虫殼の酸素・炭素同位体比の測定\n今回研究が行われた海底コアは駿河湾沖のKHー86ー5、Pー2およびPー3と沖繩東方海域のKHー87ー2、CBー4およびCBー6ー8の計4本であるが、これらの研究結果を既に得られている小名浜沖・房総半島勝浦沖・遠州灘沖の3本の海底コアの研究成果と合わせると、黒潮前線は約1万3千年前に遠州灘沖を、約1万2千年前に駿河湾沖を通過し、約1万年前には房総半島の勝浦沖に達し、その後6千年前頃には小名浜沖まで黒潮前線が北上した後、再び現在の銚子沖に後退したことが明らかになった。\n一方、セジメント・トラップの試料については、珪藻群集の季節変化や浮遊性有孔虫殼の酸素・炭素同位体比に基づく各種の生息深度の推定が行われて、古環境解析のための重要な情報が得られた。","subitem_description_type":"Abstract"},{"subitem_description":"The objective of this study is to reconstruct the paleoenvironmental change of the northwestern Pacific Ocean since the late Quaternary in terms of the migration of the Kuroshio front which is discriminated by the microfossil assemblages and oxygen-carbon isotopes of foraminiferal test. Four marine cores were collected from off the Sugaru Bay, Bousou Peninsula, and Kashima-NAda. The detailed analyses of the cores were performed on microfossil assemblages of nannoplankton, diatoms, radiolarians, and foraminifera, as well as oxygen-carbon isotopes of foraminiferal tests. Consequently, it was revealed that the Kuroshio front had fluctuated as follows:\n1. The Kuroshio front reached near the region off the Suruga Bay at 14,000 years B.P.\n2. The front retreated to the southwestern region off the Sugaru Bay between 12,000 and 10,000 years B.P.\n3. The front passed through the region off the Bousou Peninsula at 10,000 years B.P.\n4. The front reached near the region off the Kashima-nada between 7,000 and 5,000 years B.P.\n5. The same oceanographic condition as the present one was established after 5,000 years B.P.\nIn the present study, an important and fundamental study was also carried out concerning the distribution of diatoms and planktonic foraminifera in the sediment trap samples which was recovered from water depth of 8,800 m at the Japan Trench off the Bousou Peninsula.","subitem_description_type":"Abstract"}]},"item_9_description_22":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"研究課題/領域番号:62540599, 研究期間(年度):1987 – 1988","subitem_description_type":"Other"},{"subitem_description":"出典：研究課題「第4紀後期における黒潮前線の移動と海洋古環境復元」課題番号62540599\n（KAKEN：科学研究費助成事業データベース（国立情報学研究所）） \n（https://kaken.nii.ac.jp/ja/report/KAKENHI-PROJECT-62540599/625405991988kenkyu_seika_hokoku_gaiyo/）を加工して作成","subitem_description_type":"Other"}]},"item_9_description_5":{"attribute_name":"提供者所属","attribute_value_mlt":[{"subitem_description":"金沢大学教養部","subitem_description_type":"Other"}]},"item_9_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.24517/00067736","subitem_identifier_reg_type":"JaLC"}]},"item_9_relation_28":{"attribute_name":"関連URI","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"https://kaken.nii.ac.jp/ja/search/?kw=60013588"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://kaken.nii.ac.jp/ja/search/?kw=60013588","subitem_relation_type_select":"URI"}},{"subitem_relation_name":[{"subitem_relation_name_text":"https://kaken.nii.ac.jp/ja/grant/KAKENHI-PROJECT-62540599/"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://kaken.nii.ac.jp/ja/grant/KAKENHI-PROJECT-62540599/","subitem_relation_type_select":"URI"}},{"subitem_relation_name":[{"subitem_relation_name_text":"https://kaken.nii.ac.jp/ja/report/KAKENHI-PROJECT-62540599/625405991988kenkyu_seika_hokoku_gaiyo/"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://kaken.nii.ac.jp/ja/report/KAKENHI-PROJECT-62540599/625405991988kenkyu_seika_hokoku_gaiyo/","subitem_relation_type_select":"URI"}}]},"item_9_version_type_25":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_ab4af688f83e57aa","subitem_version_type":"AM"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"大場, 忠道"}],"nameIdentifiers":[{"nameIdentifier":"106293","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"60013588","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=60013588"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2022-10-28"}],"displaytype":"detail","filename":"AC-PR-OBA-T-kaken 1990-2p.pdf","filesize":[{"value":"104.8 kB"}],"format":"application/pdf","licensetype":"license_11","mimetype":"application/pdf","url":{"label":"AC-PR-OBA-T-kaken 1990-2p.pdf","url":"https://kanazawa-u.repo.nii.ac.jp/record/61493/files/AC-PR-OBA-T-kaken 1990-2p.pdf"},"version_id":"d1191685-668c-4ba2-95b3-261bd15b756d"}]},"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":"research report","resourceuri":"http://purl.org/coar/resource_type/c_18ws"}]},"item_title":"第4紀後期における黒潮前線の移動と海洋古環境復元","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"第4紀後期における黒潮前線の移動と海洋古環境復元"},{"subitem_title":"Migration of Kuroshio Front and Paleoenvironment during the late Quaternary","subitem_title_language":"en"}]},"item_type_id":"9","owner":"18","path":["2845"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-10-28"},"publish_date":"2022-10-28","publish_status":"0","recid":"61493","relation_version_is_last":true,"title":["第4紀後期における黒潮前線の移動と海洋古環境復元"],"weko_creator_id":"18","weko_shared_id":-1},"updated":"2024-07-01T06:53:23.303498+00:00"}