{"created":"2023-03-31T01:52:11.524753+00:00","id":4381,"links":{},"metadata":{"_buckets":{"deposit":"2904927f-56d5-428b-8b18-b790390eeb0b"},"_deposit":{"id":"4381","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"4381"},"status":"published"},"_oai":{"id":"oai:nied-repo.bosai.go.jp:00004381","sets":[]},"author_link":[],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2004-09"},"bibliographicIssueNumber":"1-4","bibliographicPageEnd":"45","bibliographicPageStart":"33","bibliographicVolumeNumber":"388","bibliographic_titles":[{"bibliographic_title":"TECTONOPHYSICS","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The On Backbone Range strikes northwards through the central northeastern Japan arc and is bounded on both sides by the active reverse Uwandaira and Sen'ya faults. We have applied a traveltime inversion method (seismic tomography) with spatial velocity correlation to active and passive seismic data in order to investigate a three-dimensional (3-D) velocity structure. The data set contains 33,993 P- and 18,483 S-wave arrivals from 706 natural sources and 40 blasts, as well as 2803 P-wave traveltime data from 10 explosions detonated during the 1997 controlled source experiment. The traveltime inversion reveals a zone beneath the On Backbone Range in which P-wave velocities (V-P) are approximately 6-8% lower than the average velocity at equivalent depths. The low V-P and a low V-P to S-wave velocity (V-S) ratio (V-P/V-S) of about 1.65 suggest the presence of aqueous fluids in the middle crust. (C) 2004 Elsevier B.V. All rights reserved.","subitem_description_language":"en","subitem_description_type":"Other"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"ELSEVIER SCIENCE BV","subitem_publisher_language":"en"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1016/j.tecto.2004.07.046"}}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0040-1951","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"M Matsubara","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"N Hirata","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"H Sato","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"S Sakai","creatorNameLang":"en"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_title":"Lower crustal fluid distribution in the northeastern Japan arc revealed by high-resolution 3D seismic tomography","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Lower crustal fluid distribution in the northeastern Japan arc revealed by high-resolution 3D seismic tomography","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":"4381","relation_version_is_last":true,"title":["Lower crustal fluid distribution in the northeastern Japan arc revealed by high-resolution 3D seismic tomography"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-03-31T01:52:13.308856+00:00"}