{"_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 (\u0026gt\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"], "permalink_uri": "https://nied-repo.bosai.go.jp/records/4105", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2023-03-30"}, "publish_date": "2023-03-30", "publish_status": "0", "recid": "4105", "relation": {}, "relation_version_is_last": true, "title": ["Rifting structure of Central Izu-ogasawara (Bonin) arc crust: Results of seismic crustal imaging"], "weko_shared_id": -1}