{"created":"2021-03-01T06:33:45.803771+00:00","id":28002,"links":{},"metadata":{"_buckets":{"deposit":"68e08544-998b-4a0a-9392-38b61892424b"},"_deposit":{"id":"28002","owners":[],"pid":{"revision_id":0,"type":"depid","value":"28002"},"status":"published"},"_oai":{"id":"oai:niigata-u.repo.nii.ac.jp:00028002"},"item_7_alternative_title_1":{"attribute_name":"\u305d\u306e\u4ed6\u306e\u30bf\u30a4\u30c8\u30eb","attribute_value_mlt":[{"subitem_alternative_title":"Chemical Weathering and Shear Characteristics of Neogene Mudstone from Landslides in the Higashikubiki Area, Niigata Prefecture"}]},"item_7_biblio_info_6":{"attribute_name":"\u66f8\u8a8c\u60c5\u5831","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2000-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"30","bibliographicPageStart":"17","bibliographicVolumeNumber":"22","bibliographic_titles":[{"bibliographic_title":"\u65b0\u6f5f\u5927\u5b66\u7a4d\u96ea\u5730\u57df\u707d\u5bb3\u7814\u7a76\u30bb\u30f3\u30bf\u30fc\u7814\u7a76\u5e74\u5831"},{"bibliographic_title":"\u65b0\u6f5f\u5927\u5b66\u7a4d\u96ea\u5730\u57df\u707d\u5bb3\u7814\u7a76\u30bb\u30f3\u30bf\u30fc\u7814\u7a76\u5e74\u5831","bibliographic_titleLang":"en"}]}]},"item_7_description_4":{"attribute_name":"\u6284\u9332","attribute_value_mlt":[{"subitem_description":"Landslides show intermittent activities in a long period. Such repeat of slip and stop might depend on the changes of shear resistance of the slip surface of landslides during chemical weathering. Several non-weathered and weathered mudstone samples were collected from same outcrops in the landslide area. Simple shear tests were carried out on these samples that were powdered and regulated on grain size and on water/rock weight ratio (W/R). Weathered mudstone samples having W/R>0.3 exhibited higher shear strength than non-weathered mudstone samples. Clay-mineral assemblage and chemical composition of these samples were determined by XRD method and XRF analysis, respectively. Clay-mineral assemblage and chemical composition of smectite in weathered mudstone samples are different from those in non-weathered mudstone samples. This suggests that clay-mineral assemblage and chemical composition of smectite influence to the shear strength of mudstones. Landslide activities are probably controlled by the changes of clay-mineral assemblage and chemical composition of smectite in the sheared mudstones formed by landslides during chemical weathering under the groundwater table.","subitem_description_type":"Abstract"}]},"item_7_full_name_3":{"attribute_name":"\u8457\u8005\u5225\u540d","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"160965","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Kodama, Takayuki"}]},{"nameIdentifiers":[{"nameIdentifier":"160966","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Watanabe, Naoki"}]},{"nameIdentifiers":[{"nameIdentifier":"160967","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Marui, Hideaki"}]}]},"item_7_publisher_7":{"attribute_name":"\u51fa\u7248\u8005","attribute_value_mlt":[{"subitem_publisher":"\u65b0\u6f5f\u5927\u5b66\u7a4d\u96ea\u5730\u57df\u707d\u5bb3\u7814\u7a76\u30bb\u30f3\u30bf\u30fc"}]},"item_7_select_19":{"attribute_name":"\u8457\u8005\u7248\u30d5\u30e9\u30b0","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_7_source_id_11":{"attribute_name":"\u66f8\u8a8c\u30ec\u30b3\u30fc\u30c9ID","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":"\u8457\u8005","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"\u5150\u7389, \u8cb4\u5e78"}],"nameIdentifiers":[{"nameIdentifier":"160962","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"\u6e21\u90e8, \u76f4\u559c"}],"nameIdentifiers":[{"nameIdentifier":"160963","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"\u4e38\u4e95, \u82f1\u660e"}],"nameIdentifiers":[{"nameIdentifier":"160964","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"\u30d5\u30a1\u30a4\u30eb\u60c5\u5831","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2019-08-20"}],"displaytype":"detail","filename":"22_17-30.pdf","filesize":[{"value":"629.8 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"22_17-30.pdf","url":"https://niigata-u.repo.nii.ac.jp/record/28002/files/22_17-30.pdf"},"version_id":"a5f99acd-ee5b-49df-bba3-90aafe1f5dad"}]},"item_keyword":{"attribute_name":"\u30ad\u30fc\u30ef\u30fc\u30c9","attribute_value_mlt":[{"subitem_subject":"landslide","subitem_subject_scheme":"Other"},{"subitem_subject":"Neogene mudstone","subitem_subject_scheme":"Other"},{"subitem_subject":"chemical weathering","subitem_subject_scheme":"Other"},{"subitem_subject":"Shear strength","subitem_subject_scheme":"Other"},{"subitem_subject":"the Higashikubiki area","subitem_subject_scheme":"Other"},{"subitem_subject":"\u5730\u3059\u3079\u308a","subitem_subject_scheme":"Other"},{"subitem_subject":"\u65b0\u7b2c\u4e09\u7d00\u5c64\u6ce5\u5ca9","subitem_subject_scheme":"Other"},{"subitem_subject":"\u5316\u5b66\u98a8\u5316\u4f5c\u7528","subitem_subject_scheme":"Other"},{"subitem_subject":"\u305b\u3093\u65ad\u5f37\u5ea6","subitem_subject_scheme":"Other"},{"subitem_subject":"\u6771\u9838\u57ce\u5730\u57df","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"\u8a00\u8a9e","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"\u8cc7\u6e90\u30bf\u30a4\u30d7","attribute_value_mlt":[{"resourcetype":"departmental bulletin 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