{"created":"2021-03-01T06:51:05.725000+00:00","id":32425,"links":{},"metadata":{"_buckets":{"deposit":"11031740-98a2-4c95-adc9-9cfd7711f4d9"},"_deposit":{"id":"32425","owner":"1","owners":[],"pid":{"revision_id":0,"type":"depid","value":"32425"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00032425","sets":["80:4535:4569:4570","9:504:4538:4571:4572"]},"author_link":["72742","72740","72741"],"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Three-dimensional Seismic Velocity Structure Beneath the Tokyo Metropolitan Area Obtained by a Routine Seismic Observation Network"}]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2009","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"4","bibliographicPageEnd":"344","bibliographicPageStart":"331","bibliographicVolumeNumber":"84","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_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Many researchers have studied the three-dimensinal seismic velocity structure beneath the Kanto region, central Japan using seismic tomography, because the structure is very complicated due to subducting of the Pacific and the Philippine Sea plates beneath the Eurasian plate.   The Tokyo metropolitan area is located in the Kanto region.  Initially, the subducting Pacific and Philippine Sea plates are imaged with high-velocity zones.  With many data, the oceanic crust at the uppermost part of the subducting Philippine Sea plate was imaged clearly.  After construction of the NIED Hi-net, the oceanic ocrust of the Pacific plate subducting to depths over 100km was also imaged.  A large low-velocity region at depths of 30－50km beneath the central Kanto region in the east-west direction was found by many researchers.  The reason for the low-velocity is considered to be the existence of a serpentinied mantle wedge, curling Eurasian crust, and thick oceanic crust of the Philippine Sea plate.  A low-velocity zone at depths of 40－70km beneath the eastern Kanto region with north-south direction was also found.  The reason for this low-velocity is considered to be the existence of serpentinied mantle wedge and curling Philippine Sea plate.  A high-density seismograph network, called MeSO-net, is under construction in this metropolitan region.  The results with these data are expected to reveal a more detailed structure beneath the metropolitan area.  We review former studies on the velocity structures beneath the Kanto region and note some characteristic structures beneath the Kanto region with results along arrays of MeSO-net.","subitem_description_type":"Abstract"}]},"item_4_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"72742","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Matsubara, Makoto| Obara  Kazushige"}]}]},"item_4_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15083/0000032425","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":"51.1","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":"（独）防災科学技術研究所"},{"subitem_text_value":"National Research Institute for Earth Science and Disaster Prevention"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"松原, 誠"}],"nameIdentifiers":[{"nameIdentifier":"72740","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小原, 一成"}],"nameIdentifiers":[{"nameIdentifier":"72741","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":"2017-06-12"}],"displaytype":"detail","filename":"IHO84405.pdf","filesize":[{"value":"1.7MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"IHO84405.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/32425/files/IHO84405.pdf"},"version_id":"93730d6a-2624-45de-b1c6-114f0a4965bf"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"seismic tomography","subitem_subject_scheme":"Other"},{"subitem_subject":"low-velocity oceanic crust","subitem_subject_scheme":"Other"},{"subitem_subject":"serpentinized mantle wedge","subitem_subject_scheme":"Other"},{"subitem_subject":"NIED Hi-net","subitem_subject_scheme":"Other"},{"subitem_subject":"MeSO-net","subitem_subject_scheme":"Other"}]},"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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"定常観測網から得られた首都直下の三次元地震波速度構造","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"定常観測網から得られた首都直下の三次元地震波速度構造","subitem_title_language":"ja"}]},"item_type_id":"4","owner":"1","path":["4570","4572"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2010-06-24"},"publish_date":"2010-06-24","publish_status":"0","recid":"32425","relation_version_is_last":true,"title":["定常観測網から得られた首都直下の三次元地震波速度構造"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-12-19T04:08:29.102891+00:00"}