{"_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\u0027ya 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"], "permalink_uri": "https://nied-repo.bosai.go.jp/records/4381", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2023-03-30"}, "publish_date": "2023-03-30", "publish_status": "0", "recid": "4381", "relation": {}, "relation_version_is_last": true, "title": ["Lower crustal fluid distribution in the northeastern Japan arc revealed by high-resolution 3D seismic tomography"], "weko_shared_id": -1}