{"created":"2023-03-31T01:55:44.102458+00:00","id":4529,"links":{},"metadata":{"_buckets":{"deposit":"497e6d1b-51f5-41e7-8b53-10694f6fd79a"},"_deposit":{"id":"4529","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"4529"},"status":"published"},"_oai":{"id":"oai:nied-repo.bosai.go.jp:00004529","sets":[]},"author_link":[],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2010-08-11","bibliographicIssueDateType":"Issued"},"bibliographicVolumeNumber":"11","bibliographic_titles":[{"bibliographic_title":"GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS","bibliographic_titleLang":"ja"},{"bibliographic_title":"GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The Izu-Bonin arc is an intraoceanic island arc where the Pacific plate subducts beneath the Philippine Sea plate. Along-arc variation in thickness of the arc crust has been observed by previous active seismic surveys beneath the Izu-Bonin arc. We have imaged three-dimensional (3-D) seismic velocity structures in the northern Izu-Bonin arc using arrival time data of the earthquakes during 80 days of observations by ocean bottom seismographs and three permanent island seismic stations. Our 3-D velocity model indicates heterogeneous structure in the mantle wedge along the arc. Low-velocity anomalies related to upwelling flow in the mantle wedge are not uniform beneath the volcanic front. Low-velocity anomalies extending down to the subducting slab beneath the volcanic front coincide with thicker parts of the arc crust north of Aoga-shima and south of Sumisu-jima. This coincidence suggests that heterogeneous mantle upwelling flow fundamentally controls the growth of the arc crust. Along topographic highs in the forearc, low-velocity anomalies in the crust and uppermost mantle coincide with positive magnetic anomalies suggesting the presence of a remnant arc, providing further evidence of this view of arc crust formation.","subitem_description_language":"en","subitem_description_type":"Other"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"AMER GEOPHYSICAL UNION","subitem_publisher_language":"en"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1029/2010GC003146"}}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1525-2027","subitem_source_identifier_type":"EISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Obana Koichiro","creatorNameLang":"ja"},{"creatorName":"Obana Koichiro","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Kamiya Shinichiro","creatorNameLang":"ja"},{"creatorName":"Kamiya Shinichiro","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Kodaira Shuichi","creatorNameLang":"ja"},{"creatorName":"Kodaira Shuichi","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Suetsugu Daisuke","creatorNameLang":"ja"},{"creatorName":"Suetsugu Daisuke","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Takahashi Narumi","creatorNameLang":"ja"},{"creatorName":"Takahashi Narumi","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Takahashi Tsutomu","creatorNameLang":"ja"},{"creatorName":"Takahashi Tsutomu","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Tamura Yoshihiko","creatorNameLang":"ja"},{"creatorName":"Tamura Yoshihiko","creatorNameLang":"en"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_title":"Along-arc variation in seismic velocity structure related to variable growth of arc crust in northern Izu-Bonin intraoceanic arc","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Along-arc variation in seismic velocity structure related to variable growth of arc crust in northern Izu-Bonin intraoceanic arc","subitem_title_language":"ja"},{"subitem_title":"Along-arc variation in seismic velocity structure related to variable growth of arc crust in northern Izu-Bonin intraoceanic arc","subitem_title_language":"en"}]},"item_type_id":"40001","owner":"1","path":["1670839190650"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2023-03-30"},"publish_date":"2023-03-30","publish_status":"0","recid":"4529","relation_version_is_last":true,"title":["Along-arc variation in seismic velocity structure related to variable growth of arc crust in northern Izu-Bonin intraoceanic arc"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-08T06:04:43.086923+00:00"}