{"created":"2021-03-01T06:33:48.470095+00:00","id":28042,"links":{},"metadata":{"_buckets":{"deposit":"0b9a9883-3f5f-4764-be71-c04c803eeab6"},"_deposit":{"id":"28042","owners":[],"pid":{"revision_id":0,"type":"depid","value":"28042"},"status":"published"},"_oai":{"id":"oai:niigata-u.repo.nii.ac.jp:00028042","sets":["453:456","503:836:1555:1564"]},"item_7_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Chemical Weathering of andesitic rocks at the Hieda-yama landslide area, Nagano Prefecture."}]},"item_7_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1998-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"96","bibliographicPageStart":"83","bibliographicVolumeNumber":"19","bibliographic_titles":[{"bibliographic_title":"新潟大学積雪地域災害研究センター研究年報"},{"bibliographic_title":"新潟大学積雪地域災害研究センター研究年報","bibliographic_titleLang":"en"}]}]},"item_7_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The Hieda-yama landslide area is located in the northwestern part of Nagano Prefecture. Landslides and debris flows have repeatedly occurred in this area. Bed-rock geology of this area is mainly composed of the Quaternary andesitic rocks. These andesites were weakly altered along joints and cracks in the rocks and are bearing secondary minerals such as pyrite, quartz and smectites. Ca and SO_4 ions of stream water are very concentrated in this landslide area. This fact suggests that the chemical weathering of andesitic materials is very active and the most important factor for occurrences of landslides and production of debris and soils. The chemical weathering in this area is dominated by the oxidation of pyrite, one of the secondary minerals by hydrothermal alteration. Rock forming minerals, particularly plagioclase are dissolved and their components are leached out by sulfuric acid formed by oxidation of pyrite. The annual rate of soil production by chemical weathering is estimated by using parameters such as average annual precipitation, catchment area, Ca concentration of stream water, density of soil and fresh andesite, and CaO content of fresh and weathered andesites.","subitem_description_type":"Abstract"}]},"item_7_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"161194","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Sagara, Wataru"}]},{"nameIdentifiers":[{"nameIdentifier":"161195","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Watanabe, Naoki"}]},{"nameIdentifiers":[{"nameIdentifier":"161196","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Sato, Osamu"}]},{"nameIdentifiers":[{"nameIdentifier":"161197","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Marui, Hideaki"}]}]},"item_7_publisher_7":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"新潟大学積雪地域災害研究センター"}]},"item_7_select_19":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_7_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00183327","subitem_source_identifier_type":"NCID"}]},"item_7_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"03877892","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"相楽, 渉"}],"nameIdentifiers":[{"nameIdentifier":"161189","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"渡部, 直喜"}],"nameIdentifiers":[{"nameIdentifier":"161190","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"佐藤, 修"}],"nameIdentifiers":[{"nameIdentifier":"161191","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"丸井, 英明"}],"nameIdentifiers":[{"nameIdentifier":"161192","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"垣原, 康之"}],"nameIdentifiers":[{"nameIdentifier":"161193","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":"2019-08-20"}],"displaytype":"detail","filename":"19_83-96.pdf","filesize":[{"value":"1.7 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"19_83-96.pdf","url":"https://niigata-u.repo.nii.ac.jp/record/28042/files/19_83-96.pdf"},"version_id":"4576dcc4-ac00-4f84-b716-30d9ce1f28a1"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"The Hieda-yama landslide area","subitem_subject_scheme":"Other"},{"subitem_subject":"landslide","subitem_subject_scheme":"Other"},{"subitem_subject":"debris flow","subitem_subject_scheme":"Other"},{"subitem_subject":"chemical weathering","subitem_subject_scheme":"Other"},{"subitem_subject":"soil production","subitem_subject_scheme":"Other"},{"subitem_subject":"稗田山","subitem_subject_scheme":"Other"},{"subitem_subject":"大崩壊地","subitem_subject_scheme":"Other"},{"subitem_subject":"土石流","subitem_subject_scheme":"Other"},{"subitem_subject":"化学風化作用","subitem_subject_scheme":"Other"},{"subitem_subject":"土砂生産","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"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":"長野県稗田山崩壊地における安山岩の化学風化について(予報)  (大木靖衛教授退官記念号）","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"長野県稗田山崩壊地における安山岩の化学風化について(予報)  (大木靖衛教授退官記念号）"},{"subitem_title":"長野県稗田山崩壊地における安山岩の化学風化について(予報)  (大木靖衛教授退官記念号）","subitem_title_language":"en"}]},"item_type_id":"7","owner":"1","path":["456","1564"],"pubdate":{"attribute_name":"公開日","attribute_value":"2016-03-04"},"publish_date":"2016-03-04","publish_status":"0","recid":"28042","relation_version_is_last":true,"title":["長野県稗田山崩壊地における安山岩の化学風化について(予報)  (大木靖衛教授退官記念号）"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-15T04:26:30.741587+00:00"}