{"created":"2023-03-31T01:44:49.194421+00:00","id":4105,"links":{},"metadata":{"_buckets":{"deposit":"6ac1a0d5-196d-4bb7-b7ea-8902c23df60c"},"_deposit":{"id":"4105","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"4105"},"status":"published"},"_oai":{"id":"oai:nied-repo.bosai.go.jp:00004105","sets":[]},"author_link":[],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2011"},"bibliographicPageEnd":"95","bibliographicPageStart":"75","bibliographicVolumeNumber":"8","bibliographic_titles":[{"bibliographic_title":"Modern Approaches in Solid Earth Sciences","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We obtained seismic velocity structures for two crustal profiles across the central Izu-Ogasawara (Bonin) intra-oceanic arc using a multichannel reflection system and ocean-bottom seismographs. The crust beneath the volcanic front in this region is less than 20 km thick. A middle crustal layer (P-wave velocity Vp ~6 km/s), representing andesitic proto-continental crust, is found beneath the volcanic front, the rear-arc, the fore-arc basin and Ogasawara Ridge. Crust with 15–20 km thick beneath the fore-arc basin may have formed in Paleogene time because it is covered with thick sediments. Crustal thinning by rifting is seen between the volcanic front and the rear-arc, where the crustal thickness is ~15 km, the lower crust has high Vp (>\n7.3 km/s) and there are normal faults in the shallow crust. Rifted crust also occupies a broad area in the eastern Shikoku Basin. The central Izu-Ogasawara arc has been affected by four rifting episodes compared to two for the northern Izu-Ogasawara arc. The volume of the entire arc crust in the central region is ~20% greater than in the northern region, even though the crust beneath the volcanic front is the thinnest in the entire Izu-Ogasawara arc, as shown by previous studies. The thinner crust in this region reflects greater extension here relative to the arc to the north.","subitem_description_language":"en","subitem_description_type":"Other"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Springer International Publishing","subitem_publisher_language":"en"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1007/978-90-481-8885-7_4"}}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1876-1682","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Narumi Takahashi","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Mikiya Yamashita","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Shuichi Kodaira","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Seiichi Miura","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Takeshi Sato","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Tetsuo No","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Kaoru Takizawa","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Yoshiyuki Tatsumi","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Yoshiyuki Kaneda","creatorNameLang":"en"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_title":"Rifting structure of Central Izu-ogasawara (Bonin) arc crust: Results of seismic crustal imaging","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Rifting structure of Central Izu-ogasawara (Bonin) arc crust: Results of seismic crustal imaging","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":"4105","relation_version_is_last":true,"title":["Rifting structure of Central Izu-ogasawara (Bonin) arc crust: Results of seismic crustal imaging"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-03-31T01:44:52.225042+00:00"}