{"created":"2023-03-31T01:51:23.674424+00:00","id":4353,"links":{},"metadata":{"_buckets":{"deposit":"a296b4db-7d4a-4aa8-a741-b61b754aa482"},"_deposit":{"id":"4353","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"4353"},"status":"published"},"_oai":{"id":"oai:nied-repo.bosai.go.jp:00004353","sets":[]},"author_link":[],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2009-09"},"bibliographicIssueNumber":"1-2","bibliographicPageEnd":"43","bibliographicPageStart":"33","bibliographicVolumeNumber":"176","bibliographic_titles":[{"bibliographic_title":"PHYSICS OF THE EARTH AND PLANETARY INTERIORS","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The Indochina block is located at the junction of four major plates. It has a close relationship with the uplift of Tibet plateau and the sea-floor spreading of the South China Sea in the geological evolution histories. We deployed a temporary broadband seismograph array in Vietnam from February 2000 to October 2005, and measured shear-wave splitting of core-refracted phases to investigate the upper mantle anisotropy beneath the Indochina block and adjacent regions. The observed delay times of up to 1.5 s are large, indicating a mantle source for the anisotropy. Two distinct regimes of seismic anisotropy are revealed. The fast polarization directions in the northern Indochina block with a main trend of N100 degrees E are almost consistent with the direction of both the surface displacement and the absolute plate motion. These observations suggest the anisotropy is possibly generated by the present-day asthenospheric flow caused by the India-Eurasia collision. The fast polarization directions in the southern Indochina block and the Hainan island are nearly N60 degrees E. The anisotropy in this area may reflect a combination of the India-Eurasia collision and the past orogenies in the lithosphere, or an abrupt variation in the asthenospheric flow. (C) 2009 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","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.pepi.2009.03.008"}}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1872-7395","subitem_source_identifier_type":"EISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Ling Bai","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Takashi Iidaka","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Hitoshi Kawakatsu","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Yuichi Morita","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"N. Q. Dzung","creatorNameLang":"en"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_title":"Upper mantle anisotropy beneath Indochina block and adjacent regions from shear-wave splitting analysis of Vietnam broadband seismograph array data","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Upper mantle anisotropy beneath Indochina block and adjacent regions from shear-wave splitting analysis of Vietnam broadband seismograph array data","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":"4353","relation_version_is_last":true,"title":["Upper mantle anisotropy beneath Indochina block and adjacent regions from shear-wave splitting analysis of Vietnam broadband seismograph array data"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-03-31T01:51:25.721342+00:00"}