{"created":"2023-03-30T09:24:24.104935+00:00","id":3066,"links":{},"metadata":{"_buckets":{"deposit":"b06d1e4c-cfd8-491b-b393-5c6eeca9df59"},"_deposit":{"id":"3066","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"3066"},"status":"published"},"_oai":{"id":"oai:nied-repo.bosai.go.jp:00003066","sets":[]},"author_link":[],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2014","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicVolumeNumber":"66","bibliographic_titles":[{"bibliographic_title":"Earth, Planets and Space","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Three large bathymetric highs (from north to south: the Amami Plateau, the Daito Ridge, and the Oki-Daito Ridge) originating from paleo-island arcs characterize the northwestern end of the Philippine Sea plate. We obtained 10 seismic refraction and multi-channel seismic reflection profiles across and along these bathymetric highs and obtained P wave velocity (Vp) models of the crust and the uppermost mantle. Although there are large variations in the crustal structure throughout this region, these bathymetric highs usually have a middle crust with Vp of 6.3 to 6.8 km/s, a lower crust with Vp of 6.8 to 7.2 km/s, a Pn velocity of 7.6 to 7.8 km/s, and a total crustal thickness of 15 to 25 km. These features are similar to those of the Izu-Ogasawara (Bonin)-Mariana island arc and the Kyushu-Palau Ridge, which are immature paleo-island arcs. However, the crust at the southwestern part of the Oki-Daito Ridge contains a relatively thin middle crust and a smaller total crustal thickness compared with other ridges in this region. In addition, we identified a deep reflector beneath the ridge, with these properties indicating a different origin, such as intraplate volcanism. © 2014 Nishizawa et al.; licensee Springer.","subitem_description_language":"en","subitem_description_type":"Other"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1186/1880-5981-66-25"}}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1880-5981","subitem_source_identifier_type":"EISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Nishizawa, A.","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Kaneda, K.","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Katagiri, Y.","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Oikawa, M.","creatorNameLang":"en"}]}]},"item_title":"Wide-angle refraction experiments in the daito ridges region at the northwestern end of the philippine sea plate","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Wide-angle refraction experiments in the daito ridges region at the northwestern end of the philippine sea plate","subitem_title_language":"en"}]},"item_type_id":"40001","owner":"1","path":["1670839190650"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2023-04-27"},"publish_date":"2023-04-27","publish_status":"0","recid":"3066","relation_version_is_last":true,"title":["Wide-angle refraction experiments in the daito ridges region at the northwestern end of the philippine sea plate"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-04-27T05:15:53.497279+00:00"}