{"created":"2021-03-01T06:52:16.618587+00:00","id":33490,"links":{},"metadata":{"_buckets":{"deposit":"108192ce-dd48-43c8-bfbd-0372152761ea"},"_deposit":{"id":"33490","owner":"1","owners":[],"pid":{"revision_id":0,"type":"depid","value":"33490"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00033490","sets":["80:4535:4927:4931","9:504:4538:4929:4932"]},"author_link":["130804","130805","130802","130803"],"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"西太平洋における9個の海山及び日本の3個の火山の古地磁気学"}]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1967-11-30","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageEnd":"848","bibliographicPageStart":"815","bibliographicVolumeNumber":"45","bibliographic_titles":[{"bibliographic_title":"東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo"}]}]},"item_4_description_13":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_4_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Assuming uniformity of magnetization, the direction and intensity of magnetization of nine seamounts in the Western Pacific off the coast of Japan have been computed from their topographic and magnetic surveys. The average position of the palaeomagnetic poles from the three seamounts in the Pacific Basin is at 56°N-66°W, which agrees in latitude with the average pole position of 51°N-14°W obtained previously from another group of four seamounts in the Pacific Basin off Hokkaido. A group of three seamounts west of the Izu-Bonin Arc (Shikoku Basin) gave an average pole position of 76°N-44°W. The difference in latitude between the pole positions of the groups within and outside the Pacific Basin can be interpreted as caused by a northerly drift of the Pacific Ocean floor. The radiometric age of the dredged rock samples indicates that the seamounts in the Pacific Basin originated in the Cretaceous. The same method of analysis has been applied to three active Japanese volcanoes over which aeromagnetic surveys had been made. Of the three volcanoes, two volcanic islands gave palaeomagnetic poles not far from the present geographic pole, but the inland volcano Aso gave a pole at low latitude. Low-latitude poles were also obtained from two undated seamounts on the NW Pacific (Shatsky) Rise.","subitem_description_type":"Abstract"},{"subitem_description":"1966年に行なわれた日米協同観測結果にもとづいて,西大洋海域における9個の海山について,その磁化を計算した.計算結果から求められる古地磁気学的磁極は,主として北部大西洋に集中し,かつて,北海道沖の4個の海山から求められたものと一致する傾向を示す.底質岩石の年代は白亜紀末であろうことがK-Ar法によつて得られているので,今回の研究は,太平洋底が,中生代末以来,現在の磁極に対して北上したという事実を示唆する.このことは大陸移動説におけるゴンドワナ大陸の分裂とも,最近の海洋底拡大説とも矛盾しない.阿蘇,桜島,伊豆大島等については,航空磁気測量結果にもとづいて,同様の計算が行なわれた.阿蘇火山の場合には,地形のみでなく,地下に双極子を仮定する方がよいように思われる.","subitem_description_type":"Abstract"}]},"item_4_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"130804","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Vacquier, V."}]},{"nameIdentifiers":[{"nameIdentifier":"130805","nameIdentifierScheme":"WEKO"}],"names":[{"name":"上田, 誠也"}]}]},"item_4_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15083/0000033490","subitem_identifier_reg_type":"JaLC"}]},"item_4_publisher_20":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東京大学地震研究所"}]},"item_4_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00162258","subitem_source_identifier_type":"NCID"}]},"item_4_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"00408972","subitem_source_identifier_type":"ISSN"}]},"item_4_subject_15":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"453","subitem_subject_scheme":"NDC"}]},"item_4_text_21":{"attribute_name":"出版者別名","attribute_value_mlt":[{"subitem_text_value":"Earthquake Research Institute, University of Tokyo"}]},"item_4_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"Marine Physical Laboratory of the Scripps Institution of Oceanography, University of California"},{"subitem_text_value":"Earthquake Research Institute and Geophysical Institute, the University of Tokyo."}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Vacquier, Victor"}],"nameIdentifiers":[{"nameIdentifier":"130802","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Uyeda, Seiya"}],"nameIdentifiers":[{"nameIdentifier":"130803","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-06-26"}],"displaytype":"detail","filename":"ji0453014.pdf","filesize":[{"value":"2.0 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"ji0453014.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/33490/files/ji0453014.pdf"},"version_id":"d0e97690-e23b-4af8-ab86-7543ba62eb97"}]},"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":"Palaeomagnetism of Nine Seamounts in the Western Pacific and of Three Volcanoes in Japan","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Palaeomagnetism of Nine Seamounts in the Western Pacific and of Three Volcanoes in Japan","subitem_title_language":"en"}]},"item_type_id":"4","owner":"1","path":["4931","4932"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2008-05-30"},"publish_date":"2008-05-30","publish_status":"0","recid":"33490","relation_version_is_last":true,"title":["Palaeomagnetism of Nine Seamounts in the Western Pacific and of Three Volcanoes in Japan"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-12-19T04:09:04.289561+00:00"}