{"@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/1362825894384297600.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/2001gb001765"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2001GB001765"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2001GB001765"}}],"dc:title":[{"@value":"Association of sinking organic matter with various types of mineral ballast in the deep sea: Implications for the rain ratio"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>We compiled and standardized sediment trap data below 1000 m depth from 52 locations around the globe to infer the implications of the <jats:ext-link xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"#gbc842-bib-0008\"><jats:italic>Armstrong et al.</jats:italic> [2002]</jats:ext-link> “ballast” model to the ratio of organic carbon to calcium carbonate in the deep sea (the rain ratio). We distinguished three forms of mineral ballast: calcium carbonate, opal, and lithogenic material. We concur with <jats:ext-link xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"#gbc842-bib-0008\"><jats:italic>Armstrong et al.</jats:italic> [2002]</jats:ext-link> that organic carbon sinking fluxes correlate tightly with mineral fluxes. Based on the correlations seen in the trap data, we conclude that most of the organic carbon rain in the deep sea is carried by calcium carbonate, because it is denser than opal and more abundant than terrigenous material. This analysis explains the constancy of the organic carbon to calcium carbonate rain ratio in the deep sea today, and argues against large changes in the mean value of this ratio in the past. However, sediment trap data show variability in the ratio in areas of high relative calcium carbonate export (mass CaCO<jats:sub>3</jats:sub>/mass ratio > 0.4), unexplainable by the model, leaving open the possibility of regional variations in the rain ratio in the past.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1382825894384297600","@type":"Researcher","foaf:name":[{"@value":"Christine Klaas"}],"jpcoar:affiliationName":[{"@value":"Department of the Geophysical Sciences University of Chicago  Chicago Illinois USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825894384297601","@type":"Researcher","foaf:name":[{"@value":"David E. Archer"}],"jpcoar:affiliationName":[{"@value":"Department of the Geophysical Sciences University of Chicago  Chicago Illinois USA"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"08866236"},{"@type":"EISSN","@value":"19449224"}],"prism:publicationName":[{"@value":"Global Biogeochemical Cycles"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"2002-12","prism:volume":"16","prism:number":"4","prism:startingPage":"1116"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2001GB001765"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2001GB001765"}],"createdAt":"2002-12-12","modifiedAt":"2023-10-17","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050001338209104384","@type":"Article","resourceType":"学術雑誌論文(journal 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