{"created":"2021-03-01T06:51:07.645034+00:00","id":32454,"links":{},"metadata":{"_buckets":{"deposit":"d0badf0e-3d59-4e5f-a3f1-b02e8c8794be"},"_deposit":{"id":"32454","owner":"1","owners":[],"pid":{"revision_id":0,"type":"depid","value":"32454"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00032454","sets":["80:4535:4579:4583","9:504:4538:4581:4584"]},"author_link":["123801","123802"],"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2008","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"225","bibliographicPageStart":"217","bibliographicVolumeNumber":"83","bibliographic_titles":[{"bibliographic_title":"地震研究所彙報"}]}]},"item_4_description_13":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_4_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Hot springs around the northernmost part of the Itoigawa Shizuoka Tectonic Line (ISTL) are investigated.  The Otari and the Hakuba villages, Nagano Prefecture are the study area.  The area is divided into two areas by the ISTL, the Hida Gaien belt area (western part) and the Fossa Magna area (eastern part): the former is consists of weakly metamorphosed formations containing melange belt with ultramafic rocks and the latter is of sedimentary rocks of mainly sandy mudstone.  Physical and chemical measurements for the hot spring waters are expected to provide a relation between geological structure and characteristics of hot spring water, and also to provide information about correct trace of the ISTL in the area covered with sediments. The percentage of (Mg2＋＋Ca2＋) in total cation (in eq/l) is found to be a good indicator for drawing a line between the Hida Gaien belt area and the Fossa Magna area.  In the case of the study area, the percentage for the drawing is 15％: lager values for the Hida Gaien belt area and smaller ones for the Fossa Magna area.  Therefore, hot springs in the boundary zone are classified by the percentage.  Furthermore, an unusual concentration in SO42－ ion in the Fossa Magna area is ob-served.  That is, the concentrations of SO42－ ion in the hot spring waters are smaller than those of the river waters.  The unusual concentration reveals that the origin of SO42－ ion in the hot spring water is pyrite (FeS2) in the formation.  In the Renge hot spring group, very high concentrations of SO42－ and Mg2＋ are observed, which are explained in terms of interaction among SO2 gas from a volcano, ultra mafic rocks and underground water.  That is, underground water reacting with high temperature SO2 becomes strong acid hot water with large amount of SO42－.  The hot water reacts with ultra mafic rocks around the hot water reservoir, and the hot water has high concentration of Mg2＋.","subitem_description_type":"Abstract"}]},"item_4_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15083/0000032454","subitem_identifier_reg_type":"JaLC"}]},"item_4_publisher_20":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"地震研究所"}]},"item_4_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00162258","subitem_source_identifier_type":"NCID"}]},"item_4_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"00408972","subitem_source_identifier_type":"ISSN"}]},"item_4_subject_15":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"51.1","subitem_subject_scheme":"NDC"}]},"item_4_text_21":{"attribute_name":"出版者別名","attribute_value_mlt":[{"subitem_text_value":"Earthquake Research Institute, University of Tokyo"}]},"item_4_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"Graduate School of Science and Technology, Shinshu University"},{"subitem_text_value":"Department of Environmental Sciences, Faculty of Science, Shinshu University"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Homma, Ayaka"}],"nameIdentifiers":[{"nameIdentifier":"123801","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tsukahara, Hiroaki"}],"nameIdentifiers":[{"nameIdentifier":"123802","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-06-26"}],"displaytype":"detail","filename":"IHO83208.pdf","filesize":[{"value":"649.4KB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"IHO83208.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/32454/files/IHO83208.pdf"},"version_id":"cb388cb2-34bc-4b97-bf8b-84327365f0b6"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Hot spring geochemistry","subitem_subject_scheme":"Other"},{"subitem_subject":"Hida Gaien belt","subitem_subject_scheme":"Other"},{"subitem_subject":"Fossa Magna","subitem_subject_scheme":"Other"},{"subitem_subject":"Itoigawa Shizuoka Tectonic Line","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Chemical Characteristics of Hot Spring Water and Geological Environment in the Northernmost Area of the Itoigawa Shizuoka Tectonic Line","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Chemical Characteristics of Hot Spring Water and Geological Environment in the Northernmost Area of the Itoigawa Shizuoka Tectonic Line","subitem_title_language":"en"}]},"item_type_id":"4","owner":"1","path":["4583","4584"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2008-12-24"},"publish_date":"2008-12-24","publish_status":"0","recid":"32454","relation_version_is_last":true,"title":["Chemical Characteristics of Hot Spring Water and Geological Environment in the Northernmost Area of the Itoigawa Shizuoka Tectonic Line"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-12-19T05:37:55.683623+00:00"}