{"@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/1361699995143291392.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1016/j.sedgeo.2005.09.016"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S0037073805003167?httpAccept=text/xml"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S0037073805003167?httpAccept=text/plain"}}],"dc:title":[{"@value":"Origin of atoll dolomites distinguished by geochemistry and crystal chemistry: Kita-daito-jima, northern Philippine Sea"}],"description":[{"notation":[{"@value":"Abstract   Kita-daito-jima is a carbonate island located at the northwestern region of the Philippine Sea (25°55.6′–57.6′N, 131°16.9′–19.8′E). Dolomites extend from the island surface to a depth of 100 m below the ground surface (mbgs). Strontium isotope stratigraphy indicates that subsurface Units C1 (0–49.7 mbgs) and C2 (49.7–103.4 mbgs) were dolomitized at 5.5 Ma and 2.0 Ma, respectively, and that island-surface dolomites are products of dolomitization at 1.6–2.0 Ma. X-ray diffraction analysis indicates that the island-surface and borehole dolomites comprise variable mixtures of four and three dolomite crystal phases, respectively. Each of these phases is distinguished by a different Ca and Mg content. Three textural types can be recognized in the Kita-daito-jima dolomites, fabric-preserving crystalline nonmimetic (CNM), crystalline mimetic (CM), and fabric-preserving microsucrosic (MS). CNM dolomites contain more calcian phases, whereas MS dolomites commonly are richer in more stoichiometric phases. Backscattered electron images indicate that calcian dolomite phases were precipitated earlier than the more stoichiometric dolomite phases and that there is no significant hiatus between the phases, although they are diachronous. Both the island surface and borehole cores dolomites show linear relationships between whole-rock δ18O composition and Mg contents and between whole-rock trace element concentrations (Sr and Na) and Mg contents. These covariances result from phase mixing, not stoichiometric effects. Deconvolution of whole-rock isotopic and elemental compositions based on the relative abundance of phases reveals that each phase has a distinct chemical and isotopic composition. Oxygen isotopic compositions of the island surface and borehole dolomites suggest that all dolomite phases formed in seawater and that dolomitization primarily occurred during glacio-eustatic sea-level lowstands and cooler ocean temperatures."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381699995143291392","@type":"Researcher","foaf:name":[{"@value":"Yuka Suzuki"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699995143291396","@type":"Researcher","foaf:name":[{"@value":"Yasufumi Iryu"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699995143291397","@type":"Researcher","foaf:name":[{"@value":"Shizue Inagaki"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699995143291395","@type":"Researcher","foaf:name":[{"@value":"Tsutomu Yamada"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699995143291394","@type":"Researcher","foaf:name":[{"@value":"Shoichi Aizawa"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699995143291393","@type":"Researcher","foaf:name":[{"@value":"David A. Budd"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00370738"}],"prism:publicationName":[{"@value":"Sedimentary Geology"}],"dc:publisher":[{"@value":"Elsevier BV"}],"prism:publicationDate":"2006-01","prism:volume":"183","prism:number":"3-4","prism:startingPage":"181","prism:endingPage":"202"},"reviewed":"false","dc:rights":["https://www.elsevier.com/tdm/userlicense/1.0/"],"url":[{"@id":"https://api.elsevier.com/content/article/PII:S0037073805003167?httpAccept=text/xml"},{"@id":"https://api.elsevier.com/content/article/PII:S0037073805003167?httpAccept=text/plain"}],"createdAt":"2005-11-17","modifiedAt":"2019-01-20","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360009142433951232","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Freshwater lens oscillation induced by sea tides and variable rainfall at the uplifted atoll island of Minami-Daito, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1360009142706112768","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Tectonic implications of carbonate deposits on the eastern slope of the Hahajima Seamount in the collision zone between the Izu–Bonin Arc on the Philippine Sea Plate and the Ogasawara Plateau on the Pacific Plate"}]},{"@id":"https://cir.nii.ac.jp/crid/1360025430184667392","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"First northwestern Pacific records of the deep-sea cardinalfish Epigonus glossodontus (Teleostei, Epigonidae) from the Daito Islands, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285715191099648","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Temporal changes in biotic and abiotic composition of shallow-water carbonates on submerged seamounts in the northwestern Pacific Ocean and their controlling factors"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848655049622400","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Early Aptian paleoenvironmental evolution of the Bab Basin at the southern Neo‐Tethys margin: Response to global carbon‐cycle perturbations across Ocean Anoxic Event 1a"}]},{"@id":"https://cir.nii.ac.jp/crid/1361418521423308032","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Multi‐approach characterization of shallow‐water carbonates off Minamitorishima and their depositional settings/history"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001204237145344","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Pictorial 1: 1934 and 1936 Kita-daito-jima Drilling: The First and Only Deep Drilling into Coral Reefs in the Northern Philippine Sea"},{"@language":"ja","@value":"口絵1：北大東島試錐―日本初そして唯一のサンゴ礁深層ボーリング―"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206237658368","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Sr isotope composition of island-surface dolomites at Kita-daito-jima, northern Philippine Sea"},{"@language":"ja","@value":"北大東島の地表に分布するドロマイトのSr同位体組成"},{"@language":"ja-Kana","@value":"キタダイトウジマ ノ チヒョウ ニ ブンプ スル ドロマイト ノ Sr ドウイタイ ソセイ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679207357056","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Dolomitization and Reservoir Characteristics"},{"@language":"ja","@value":"ドロマイト化作用と貯留岩性状"},{"@language":"ja-Kana","@value":"ドロマイトカ サヨウ ト チョリュウガン 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