{"_buckets": {"deposit": "40e2af99-608e-46c6-8c6b-3684985d2a7c"}, "_deposit": {"id": "12655", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "12655"}, "status": "published"}, "_oai": {"id": "oai:soar-ir.repo.nii.ac.jp:00012655", "sets": ["1222"]}, "author_link": ["38775", "38776", "38777", "38778", "38779", "38780", "38781", "38782", "38783", "38784", "38785"], "item_1628147817048": {"attribute_name": "出版タイプ", "attribute_value_mlt": [{"subitem_version_resource": "http://purl.org/coar/version/c_ab4af688f83e57aa", "subitem_version_type": "AM"}]}, "item_6_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2008-05", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "3", "bibliographicPageEnd": "302", "bibliographicPageStart": "288", "bibliographicVolumeNumber": "116", "bibliographic_titles": [{"bibliographic_title": "JOURNAL OF GEOLOGY"}]}]}, "item_6_description_30": {"attribute_name": "資源タイプ（コンテンツの種類）", "attribute_value_mlt": [{"subitem_description": "Article", "subitem_description_type": "Other"}]}, "item_6_description_31": {"attribute_name": "フォーマット：mimeタイプ", "attribute_value_mlt": [{"subitem_description": "application/pdf", "subitem_description_type": "Other"}]}, "item_6_description_5": {"attribute_name": "引用", "attribute_value_mlt": [{"subitem_description": "JOURNAL OF GEOLOGY. 116(3):288-302(2008)", "subitem_description_type": "Other"}]}, "item_6_link_3": {"attribute_name": "信州大学研究者総覧へのリンク", "attribute_value_mlt": [{"subitem_link_text": "Nakaya, S", "subitem_link_url": "http://soar-rd.shinshu-u.ac.jp/profile/ja.jCLabpkh.html"}]}, "item_6_link_67": {"attribute_name": "WoS", "attribute_value_mlt": [{"subitem_link_text": "Web of Science", "subitem_link_url": "http://gateway.isiknowledge.com/gateway/Gateway.cgi?\u0026GWVersion=2\u0026SrcAuth=ShinshuUniv\u0026SrcApp=ShinshuUniv\u0026DestLinkType=FullRecord\u0026DestApp=WOS\u0026KeyUT=000255429100005"}]}, "item_6_publisher_4": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "UNIV CHICAGO PRESS"}]}, "item_6_relation_48": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_name": [{"subitem_relation_name_text": "10.1086/587789"}], "subitem_relation_type_id": {"subitem_relation_type_id_text": "https://doi.org/10.1086/587789", "subitem_relation_type_select": "DOI"}}]}, "item_6_select_64": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_select_item": "author"}]}, "item_6_source_id_35": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0022-1376", "subitem_source_identifier_type": "ISSN"}]}, "item_6_source_id_39": {"attribute_name": "NII ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0022-1376", "subitem_source_identifier_type": "ISSN"}]}, "item_6_source_id_40": {"attribute_name": "書誌レコードID", "attribute_value_mlt": [{"subitem_source_identifier": "AA00698868", "subitem_source_identifier_type": "NCID"}]}, "item_6_text_70": {"attribute_name": "wosonly keywords", "attribute_value_mlt": [{"subitem_text_value": "GANGES-BRAHMAPUTRA DELTA; BENGAL BASIN; WEST-BENGAL; GROUNDWATER; POLLUTION; SEQUENCE; MOBILITY; INDIA; AREA"}]}, "item_6_textarea_68": {"attribute_name": "wosonly abstract", "attribute_value_mlt": [{"subitem_textarea_value": "Continuous sediment core samples and groundwater were collected in the northern part of Sonargaon, central Bangladesh, to document the hydrogeological constraints on As-contaminated aquifers. The study area spans the alluvial plain of the Old Brahmaputra River and a Pleistocene terrace, the Madhupur Tract. The Quaternary sequence comprises Plio-Pleistocene sand, Upper Pleistocene mud, and Holocene sand units. Highly As-contaminated groundwater (50 1000 mu g/L) is found in the upper aquifer, corresponding to the Holocene sand unit that underlies the alluvial plain, and it plausibly appears to be closely related to the distribution of lenses of silt to fine sand. As-free (\u003c 1 mu g/L) groundwater occurs only within sediments coarser than medium sand. Highly As-contaminated groundwater is characterized by low concentrations of Cl- and SO42- and high concentrations of NH4+ suggesting that the As is released in association with reduction of water recharged during rainy season. The restricted occurrence of strongly As-contaminated (1100 mu g/L) groundwater is associated with ( 1) the intercalation of silt to fine-sand lenses in the Holocene sandy aquifer, ( 2) the stagnant condition of the aquifer along the buried valley, and ( 3) the vertical infiltration of groundwater in close proximity to installed tube wells."}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Mitamura,  M"}], "nameIdentifiers": [{"nameIdentifier": "38775", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Masuda,  H"}], "nameIdentifiers": [{"nameIdentifier": "38776", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Itai,  TA"}], "nameIdentifiers": [{"nameIdentifier": "38777", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Minowa,  T"}], "nameIdentifiers": [{"nameIdentifier": "38778", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Maruoka,  T"}], "nameIdentifiers": [{"nameIdentifier": "38779", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Ahmed,  KM"}], "nameIdentifiers": [{"nameIdentifier": "38780", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Seddique,  AA"}], "nameIdentifiers": [{"nameIdentifier": "38781", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Biswas,  DK"}], "nameIdentifiers": [{"nameIdentifier": "38782", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Nakaya,  S"}], "nameIdentifiers": [{"nameIdentifier": "38783", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Uesugi,  K"}], "nameIdentifiers": [{"nameIdentifier": "38784", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kusakabe,  M"}], "nameIdentifiers": [{"nameIdentifier": "38785", "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": "2015-09-28"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "Mitamuraetal_final_with_figs.pdf", "filesize": [{"value": "956.9 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_note", "mimetype": "application/pdf", "size": 956900.0, "url": {"label": "Mitamuraetal_final_with_figs.pdf", "url": "https://soar-ir.repo.nii.ac.jp/record/12655/files/Mitamuraetal_final_with_figs.pdf"}, "version_id": "daf10606-755f-4b7c-9fee-9a787063a3e0"}]}, "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": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Geological structure of an arsenic-contaminated aquifer at Sonargaon, Bangladesh", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Geological structure of an arsenic-contaminated aquifer at Sonargaon, Bangladesh", "subitem_title_language": "en"}]}, "item_type_id": "6", "owner": "1", "path": ["1222"], "permalink_uri": "http://hdl.handle.net/10091/1124", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2008-08-08"}, "publish_date": "2008-08-08", "publish_status": "0", "recid": "12655", "relation": {}, "relation_version_is_last": true, "title": ["Geological structure of an arsenic-contaminated aquifer at Sonargaon, Bangladesh"], "weko_shared_id": -1}