{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1362544420071602688.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1016/0037-0738(93)90011-s"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:003707389390011S?httpAccept=text/xml"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:003707389390011S?httpAccept=text/plain"}},{"identifier":{"@type":"NAID","@value":"30004020452"}}],"dc:title":[{"@value":"Late quaternary sedimentary environments and landforms in the Ganges Delta"}],"description":[{"notation":[{"@value":"Abstract   Late Quaternary sediments, deposited since the lowest stand of sea-level during the last glacial maximum, in the Ganges Delta and its surrounding region were classified into five units according to their sedimentary facies. These are the lowest unit of sandy gravels, the lower unit of sand with a few gravels, and the middle, upper and uppermost units consisting mainly of sand and silt with occasional peat layers. The contact between the lower and middle units is fairly sharp, and the upper part of the lower unit is oxidized in some places. This suggests a period of subaerial exposure after the deposition of the lower unit.  During the low stand of sea-level, about the time of the last glacial maximum, rivers in the Ganges Delta and its surrounding region dissected the surfaces of the region, and deposited the lowest unit on the valley floors. The lower unit was deposited over the lowest unit during an early stage of the post-glacial transgression. Between ca. 12,000 yr BP and 10,000 yr BP, the surface of the delta was slightly dissected and the top of the lower unit was weathered and oxidized. Following this period, the middle and upper units of alluvial or deltaic sand and silt with occasional peat were deposited. The coastline in the early Holocene retreated towards the central part of the present Ganges Delta. In the middle and late Holocene, the silt and clay with occasional peat layers of the uppermost unit indicate that the lowland gradually became marshy and poorly drained as the rate of transgression became slower."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1382544420071602688","@type":"Researcher","foaf:name":[{"@value":"Masatomo Umitsu"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00370738"},{"@type":"NCID","@value":"AA00838854"}],"prism:publicationName":[{"@value":"Sedimentary Geology"}],"dc:publisher":[{"@value":"Elsevier BV"}],"prism:publicationDate":"1993-03","prism:volume":"83","prism:number":"3-4","prism:startingPage":"177","prism:endingPage":"186"},"reviewed":"false","dc:rights":["https://www.elsevier.com/tdm/userlicense/1.0/"],"url":[{"@id":"https://api.elsevier.com/content/article/PII:003707389390011S?httpAccept=text/xml"},{"@id":"https://api.elsevier.com/content/article/PII:003707389390011S?httpAccept=text/plain"}],"createdAt":"2003-08-07","modifiedAt":"2019-03-15","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360009142783954688","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Influences of sea level on depositional environment during the last 1000 years in the southwestern Bengal delta, Bangladesh"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567181505052672","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Geochemical study of arsenic and other trace elements in groundwater and sediments of the Old Brahmaputra River Plain, Bangladesh"}]},{"@id":"https://cir.nii.ac.jp/crid/1360584341809271808","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Sediment management using bandal-like structures as nature-based solution"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001204422542080","@type":"Article","relationType":["isCitedBy"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"ベルガル低地の自然と地形変化"},{"@language":"en","@value":"Physical environment and landform change of the Bengal lowland."},{"@value":"ベンガル低地の自然と地形変化"},{"@language":"ja-Kana","@value":"ベンガル テイチ ノ シゼン ト チケイ ヘンカ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001205457248384","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"飲料水のヒ素問題に関する世界的関心とWHOの対応"},{"@language":"en","@value":"World Concern about Arsenic in Drinking Water and WHO's Response"},{"@language":"ja-Kana","@value":"インリョウスイ ノ ヒソ モンダイ ニ カンスル セカイテキ カンシン ト WHO ノ タイオウ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206238323968","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Uplift of the Himalayas and Tibetan Plateau and large river deltas in Asia: their characteristics and Holocene evolution"},{"@language":"ja","@value":"ヒマラヤーチベットの隆起とアジアの大規模デルタ：デルタの特徴と完新世における進展"},{"@language":"ja-Kana","@value":"ヒマラヤ チベット ノ リュウキ ト アジア ノ ダイキボ デルタ デルタ ノ トクチョウ ト カンシン セイ ニ オケル シンテン"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681474187904","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"沖積低地の過去を知る—沖積低地研究をどう始めたか—"},{"@language":"en","@value":"The Paper for the 2013 Japan Association for Quaternary Research Award Study on the landform evolution of alluvial and coastal lowlands : How the author started the study"},{"@value":"2013年日本第四紀学会賞受賞記念論文 沖積低地の過去を知る : 沖積低地研究をどう始めたか"},{"@language":"ja-Kana","@value":"2013ネン ニホン ダイシキ ガッカイショウ ジュショウ キネン ロンブン チュウセキ テイチ ノ カコ オ シル : チュウセキ テイチ ケンキュウ オ ドウ ハジメタ カ"}]},{"@id":"https://cir.nii.ac.jp/crid/2050870367089648512","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Geomorphological processes and their connectivity in hillslope, fuvial, and coastal areas in Bangladesh : a review"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1016/0037-0738(93)90011-s"},{"@type":"CIA","@value":"30004020452"},{"@type":"OPENAIRE","@value":"doi_dedup___::0e1e2af4d0f79d8125d34dacf9f16a0c"},{"@type":"CROSSREF","@value":"10.4116/jaqua.54.101_references_DOI_M2NbDPMI7Tn7TrFOcbek0wtYMEu"},{"@type":"CROSSREF","@value":"10.5575/geosoc.111.717_references_DOI_M2NbDPMI7Tn7TrFOcbek0wtYMEu"},{"@type":"CROSSREF","@value":"10.1177/0959683621994671_references_DOI_M2NbDPMI7Tn7TrFOcbek0wtYMEu"},{"@type":"CROSSREF","@value":"10.1007/s12665-009-0270-7_references_DOI_M2NbDPMI7Tn7TrFOcbek0wtYMEu"},{"@type":"CROSSREF","@value":"10.1186/s40645-022-00500-8_references_DOI_M2NbDPMI7Tn7TrFOcbek0wtYMEu"},{"@type":"CROSSREF","@value":"10.21203/rs.3.rs-2878255/v1_references_DOI_M2NbDPMI7Tn7TrFOcbek0wtYMEu"},{"@type":"CROSSREF","@value":"10.5917/jagh1987.42.315_references_DOI_M2NbDPMI7Tn7TrFOcbek0wtYMEu"}]}