{"@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/1361137044742945408.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1016/s0031-0182(02)00281-x"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S003101820200281X?httpAccept=text/xml"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S003101820200281X?httpAccept=text/plain"}},{"identifier":{"@type":"NAID","@value":"30005401591"}}],"dc:title":[{"@value":"Cyclic sea-level changes based on fossil ostracode faunas from the Upper Pliocene Sasaoka Formation, Akita Prefecture, northeast Japan"}],"description":[{"notation":[{"@value":"Abstract   The paleoenvironments in the Upper Pliocene Sasaoka Formation (2.20–2.05 Ma), Gojome area, Akita Prefecture, northeast Japan, are reconstructed on the basis of the ostracode assemblages and sedimentary facies. The upper part of this formation is divided into five units representing sedimentary facies. Each unit shows coarsening-upward sequences. Q-mode principal component analysis of ostracodes suggests the following: (1) the Upper Pliocene Sasaoka Formation was deposited entirely under cold-water influences; and (2) paleoenvironments of this formation are interpreted as combinations of a coastal area in sublittoral zone, open-water environment in upper bathyal zone, a bay in upper bathyal zone, and a bay in sublittoral zone. Each of four sedimentary units records one cycle of relative sea-level change based on ostracode assemblages, whereas one sedimentary unit (II) is barren. The sea-level changes reflected in the upper two units (IV and V) might have been shorter in duration than those of the lower two units (I and III). Relatively large-amplitude oscillation is recognized in the middle part by presence of lag deposits, absence of the upper part of a cycle in unit below the lag deposit, and no correlation between ostracode assemblages and paleodepth just above the lag deposits. This large shift might have been caused by the global glacial event at 2.08 Ma. The paleodepth between upper bathyal and sublittoral zone shifts to shoreface at the remarkable boundary. The upper half is characterized by a shallowing-upward sequence based on occurrences of Sinocytheridea latiovata."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381137044742945409","@type":"Researcher","foaf:name":[{"@value":"Katsura Yamada"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137044742945410","@type":"Researcher","foaf:name":[{"@value":"Toshiaki Irizuki"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137044742945408","@type":"Researcher","foaf:name":[{"@value":"Yuichiro Tanaka"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00310182"},{"@type":"PISSN","@value":"http://id.crossref.org/issn/00310182"}],"prism:publicationName":[{"@value":"Palaeogeography, Palaeoclimatology, Palaeoecology"}],"dc:publisher":[{"@value":"Elsevier BV"}],"prism:publicationDate":"2002-09","prism:volume":"185","prism:number":"1-2","prism:startingPage":"115","prism:endingPage":"132"},"reviewed":"false","dc:rights":["https://www.elsevier.com/tdm/userlicense/1.0/"],"url":[{"@id":"https://api.elsevier.com/content/article/PII:S003101820200281X?httpAccept=text/xml"},{"@id":"https://api.elsevier.com/content/article/PII:S003101820200281X?httpAccept=text/plain"}],"createdAt":"2002-10-11","modifiedAt":"2019-04-13","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360002220102800640","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Data report: Pliocene and Pleistocene deep-sea ostracods from Integrated Ocean Drilling Program Site U1426 (Expedition 346)"}]},{"@id":"https://cir.nii.ac.jp/crid/1360283695394809344","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Miocene Ostracods from the Itahana Formation in the Tomioka District, Gunma Prefecture, Central Japan: Paleoenvironmental Significance and Systematics"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285707329701760","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Recent ostracod distribution in western Kyushu, Japan, related to the migration of Chinese continental faunal elements"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285707396540032","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Global cooling in marine climates and local tectonic events in Southwest Japan at the Plio–Pleistocene boundary"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285707396599296","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Calibration of past water temperature in the Sea of Japan based on Mg/Ca of ostracode shells of two shallow marine species in the genus Cytheropteron"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285707445561856","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Paleomagnetic study of Plio-Pleistocene sediments in the concentrated deformation zone along the eastern margin of the Japan Sea"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848657934594560","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Pleistocene deep-sea ostracods from the Oki Ridge, Sea of Japan (IODP Site U1426) and condition of the intermediate water"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001204086233600","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Water temperature, salinity ranges and ecological significance of the three families of Recent cold-water ostracods in and around the Japan Sea"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001204459401216","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"A New Species of Aurila (Crustacea: Ostracoda: Cytheroidea: Hemicytheridae) from the Pleistocene Omma Formation on the Coast of the Sea of Japan"},{"@language":"en","@value":"A New Species of Aurila (Crustacea: Ostracoda: Cytheroidea: Hemicytheridae) from the Pleistocene Omma Formation on the Coast of the Sea of Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206236956416","@type":"Article","relationType":["isCitedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Calcareous nannofossil biostratigraphy of the upper Pliocene to lowermost Pleistocene distributed in the northern part of Akita Prefecture, Honshu, Japan-with special reference to the late Pliocene paleoceanography event-"},{"@value":"秋田県北部に分布する上部鮮新統～最下部更新統の石灰質ナンノ化石層序―後期鮮新世古海洋変動と関連して―"},{"@language":"ja-Kana","@value":"アキタケン ホクブ ニ ブンプ スル ジョウブ センシントウ サイ カブ コウシントウ ノ セッカイシツ ナンノ カセキソウ ジョ コウキ センシンセイ コ カイヨウ ヘンドウ ト カンレン シテ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206238967936","@type":"Article","relationType":["isCitedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Late Pliocene sea surface environments in the Pacific side of central Japan based on calcareous nannofossils from the lower part of the Chikura Group, southernmost part of the Boso Peninsula"},{"@value":"房総半島南端，千倉層群下部の石灰質ナンノ化石に基づく本邦中部太平洋側の後期鮮新世表層海洋環境"},{"@language":"ja-Kana","@value":"ボウソウ ハントウ ナンタン チクラソウグン カブ ノ セッカイシツ ナンノ カセキ ニ モトヅク ホンポウ チュウブ タイヘイヨウガワ ノ コウキ センシンセイ ヒョウソウ カイヨウ カンキョウ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206240972928","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Fossil ostracode assemblages in the Middle Pleistocene upper part of the Sawane Formation on Sado Island, Niigata Prefecture, central Japan and surface water freshening of the Sea of Japan"},{"@language":"ja","@value":"新潟県佐渡島に分布する中部更新統沢根層上部の貝形虫化石群と日本海表層水の低塩分化"},{"@language":"ja-Kana","@value":"ニイガタケン サドガシマ ニ ブンプ スル チュウブ コウシントウ サワ コンソウ ジョウブ ノ カイケイムシ カセキグン ト ニホンカイ ヒョウソウスイ ノ テイエンブンカ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390008918664476416","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Paleoenvironmental changes during the Pleistocene in the northern part of the Niitsu Hills, Niigata Prefecture based on fossil ostracod assemblages"},{"@language":"ja","@value":"貝形虫化石群集に基づく新潟県新津丘陵北部域の更新世の古環境変化"},{"@language":"ja-Kana","@value":"カイケイムシ カセキ グンシュウ ニ モトズク ニイガタケン ニイツ キュウリョウ ホクブイキ ノ コウシン セイ ノ コ カンキョウ ヘンカ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679063977600","@type":"Article","relationType":["isReferencedBy","isCitedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Japan Sea ostracod assemblages in surface sediments: their distribution and relationships to water mass properties"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679064616960","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Middle Pleistocene Ostracoda from the Takatsukayama Member of the Meimi Formation, Hyogo Prefecture, western Japan: significance of the occurrence of <i>Sinocytheridea impressa</i>"},{"@value":"Middle Pleistocene Ostracoda from the Takatsukayama Member of the Meimi Formation, Hyogo Prefecture, western Japan: significance of the occurrence of Sinocytheridea impressa"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679411338624","@type":"Article","relationType":["isCitedBy"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"日本海沿岸の鮮新世貝形虫群集と海洋環境との関係(<特集>日本海の生物相の変遷と環境変動-過去,現在そして未来へ向けて)"},{"@language":"en","@value":"Relationship between Pliocene ostracode assemblages and marine environments along the Japan Sea side regions in Japan"},{"@value":"日本海沿岸の鮮新世貝形虫群集と海洋環境との関係"},{"@language":"ja-Kana","@value":"ニホンカイ エンガン ノ センシンセイ カイケイチュウ グンシュウ ト カイヨウ カンキョウ トノ カンケイ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679411342336","@type":"Article","relationType":["isCitedBy"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"日本海の好冷性介形虫相の変遷と海洋環境(<特集>日本海の生物相の変遷と環境変動-過去,現在そして未来へ向けて)"},{"@language":"en","@value":"Faunal changes of cryophilic ostracods (Crustacea) in the Japan Sea, in relation to oceanographic environment : an overview"},{"@value":"日本海の好冷性介形虫相の変遷と海洋環境"},{"@language":"ja-Kana","@value":"ニホンカイ ノ コウレイセイ カイケイチュウソウ ノ ヘンセン ト カイヨウ カンキョウ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679412687104","@type":"Article","relationType":["isCitedBy"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"第四紀の気候変動と種多様性 : 氷期-間氷期サイクルに対する海生生物の応答(<特集>生物多様性と古生物学)"},{"@language":"en","@value":"Quaternary climatic changes and species diversity : responses of marine organisms to glacial-interglacial cycles"},{"@value":"第四紀の気候変動と種多様性:氷期-間氷期サイクルに対する海生生物の応答"},{"@language":"ja-Kana","@value":"ダイ4キ ノ キコウ ヘンドウ ト シュ タヨウセイ ヒョウキ カンピョウキ サイクル ニ タイスル カイセイセイブツ ノ オウトウ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679691496960","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isCitedBy"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"日本海と周辺における好冷性介形虫類(甲殻亜門介形虫綱)の分布と海洋環境"},{"@language":"en","@value":"An Overview of the Geographical Distribution and Ecological Significance of Species in the Three Families of Cryophilic Ostracods (Crustacea: Ostracoda) in and around the Japan Sea-with Special Reference to Distribution of Species in Relation to Water Temperature-salinity Ranges"},{"@language":"ja-Kana","@value":"ニホンカイ ト シュウヘン ニ オケル コウレイセイ カイケイチュウルイ コウカク アモン カイケイチュウコウ ノ ブンプ ト カイヨウ カンキョウ"}]},{"@id":"https://cir.nii.ac.jp/crid/1520854805018412416","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Two new species of Semicytherura (Podocopa: Ostracoda) from Akkeshi Bay, Hokkaido, Japan, with comments on their speciation and related species"},{"@language":"ja-Kana","@value":"Two new species of Semicytherura Podocopa Ostracoda from Akkeshi Bay Hokkaido Japan with comments on their speciation and related species"}]},{"@id":"https://cir.nii.ac.jp/crid/1521699230325697280","@type":"Article","relationType":["isCitedBy"],"jpcoar:relatedTitle":[{"@value":"Early Pleistocene ostracods from the Hamada Formation in the Shimokita Peninsula, northeastern Japan: the palaeo-biogeographic significance of their occurrence for the shallow-water fauna"},{"@language":"ja-Kana","@value":"Early Pleistocene ostracods from the Hamada Formation in the Shimokita Peninsula northeastern Japan the palaeo biogeographic significance of their occurrence for the shallow water fauna"}]},{"@id":"https://cir.nii.ac.jp/crid/1522262180122177920","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Shallow-marine ostracods from the lower Pleistocene Kazusa Group in the Tama Hills, central Japan, with their biogeographical significance in the Northwest Pacific Ocean"}]},{"@id":"https://cir.nii.ac.jp/crid/1523388079990225664","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Microfossil biostratigraphy and paleoenvironments of the upper Pliocene Kuwae Formation, Northeast Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1523951029462294784","@type":"Article","relationType":["isCitedBy"],"jpcoar:relatedTitle":[{"@value":"The phylogeny and palaeozoogeography of cold-water species of ostracod (Crustacea) from the Pre-Ludhamian Stage (late Pliocene-early Pleistocene), Red Crag Formation, East Anglia, England: with reference to the earliest arrival of Pacific species"},{"@language":"ja-Kana","@value":"The phylogeny and palaeozoogeography of cold water species of ostracod Crustacea from the Pre Ludhamian Stage late Pliocene early Pleistocene Red Crag Formation East Anglia England with reference to the earliest arrival of Pacific species"}]},{"@id":"https://cir.nii.ac.jp/crid/1570291225289270912","@type":"Article","relationType":["isCitedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Faunal analysis of Neogene planktonic foraminifera from forearc sediments of the Japan Trench, ODP Site 1151, Leg 186"}]},{"@id":"https://cir.nii.ac.jp/crid/2051996266838193408","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Transitional changes in microfossil assemblages in the Japan Sea from the Late Pliocene to Early Pleistocene related to global climatic and local tectonic 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