{"@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/1360565166756457088.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1038/ncomms15532"}},{"identifier":{"@type":"URI","@value":"https://www.nature.com/articles/ncomms15532.pdf"}},{"identifier":{"@type":"URI","@value":"https://www.nature.com/articles/ncomms15532"}},{"identifier":{"@type":"URI","@value":"http://www.nature.com/doifinder/10.1038/ncomms15532"}},{"identifier":{"@type":"PMID","@value":"28589958"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@value":"Astronomical pacing of the global silica cycle recorded in Mesozoic bedded cherts"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title><jats:p>The global silica cycle is an important component of the long-term climate system, yet its controlling factors are largely uncertain due to poorly constrained proxy records. Here we present a ∼70 Myr-long record of early Mesozoic biogenic silica (BSi) flux from radiolarian chert in Japan. Average low-mid-latitude BSi burial flux in the superocean Panthalassa is ∼90% of that of the modern global ocean and relative amplitude varied by ∼20–50% over the 100 kyr to 30 Myr orbital cycles during the early Mesozoic. We hypothesize that BSi in chert was a major sink for oceanic dissolved silica (DSi), with fluctuations proportional to DSi input from chemical weathering on timescales longer than the residence time of DSi (<∼100 Kyr). Chemical weathering rates estimated by the GEOCARBSULFvolc model support these hypotheses, excluding the volcanism-driven oceanic anoxic events of the Early-Middle Triassic and Toarcian that exceed model limits. We propose that the Mega monsoon of the supercontinent Pangea nonlinearly amplified the orbitally paced chemical weathering that drove BSi burial during the early Mesozoic greenhouse world.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1420282801205395840","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"10635882"},{"@type":"NRID","@value":"1000010635882"},{"@type":"NRID","@value":"9000386336939"},{"@type":"NRID","@value":"9000347166314"},{"@type":"NRID","@value":"9000017096430"},{"@type":"NRID","@value":"9000347191533"},{"@type":"NRID","@value":"9000414373642"},{"@type":"NRID","@value":"9000400169276"},{"@type":"NRID","@value":"9000258410801"},{"@type":"NRID","@value":"9000347135586"},{"@type":"NRID","@value":"9000347137856"},{"@type":"NRID","@value":"9000409996110"},{"@type":"NRID","@value":"9000405524065"},{"@type":"NRID","@value":"9000347136186"},{"@type":"NRID","@value":"9000347166171"},{"@type":"NRID","@value":"9000403551161"},{"@type":"NRID","@value":"9000283726488"},{"@type":"NRID","@value":"9000347545191"},{"@type":"NRID","@value":"9000350559590"},{"@type":"NRID","@value":"9000410762383"},{"@type":"NRID","@value":"9000272993672"},{"@type":"NRID","@value":"9000347166172"},{"@type":"NRID","@value":"9000403550281"},{"@type":"NRID","@value":"9000006567050"},{"@type":"NRID","@value":"9000264263854"},{"@type":"NRID","@value":"9000258412142"},{"@type":"NRID","@value":"9000261679960"},{"@type":"NRID","@value":"9000300211797"},{"@type":"NRID","@value":"9000410762395"},{"@type":"NRID","@value":"9000258416088"},{"@type":"NRID","@value":"9000258416405"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/7000011579"}],"foaf:name":[{"@value":"Masayuki Ikeda"}]},{"@id":"https://cir.nii.ac.jp/crid/1380566394946018561","@type":"Researcher","foaf:name":[{"@value":"Ryuji Tada"}]},{"@id":"https://cir.nii.ac.jp/crid/1380566394946018562","@type":"Researcher","foaf:name":[{"@value":"Kazumi Ozaki"}]}],"publication":{"publicationIdentifier":[{"@type":"EISSN","@value":"20411723"}],"prism:publicationName":[{"@value":"Nature Communications"}],"dc:publisher":[{"@value":"Springer Science and Business Media LLC"}],"prism:publicationDate":"2017-06-07","prism:volume":"8","prism:number":"1","prism:startingPage":"15532"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","dc:rights":["https://creativecommons.org/licenses/by/4.0","https://creativecommons.org/licenses/by/4.0"],"url":[{"@id":"https://www.nature.com/articles/ncomms15532.pdf"},{"@id":"https://www.nature.com/articles/ncomms15532"},{"@id":"http://www.nature.com/doifinder/10.1038/ncomms15532"}],"createdAt":"2017-06-07","modifiedAt":"2025-06-19","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=Science","dc:title":"Science"},{"@id":"https://cir.nii.ac.jp/all?q=Q","dc:title":"Q"},{"@id":"https://cir.nii.ac.jp/all?q=Article","dc:title":"Article"}],"project":[{"@id":"https://cir.nii.ac.jp/crid/1040000782316645376","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"26800266"},{"@type":"JGN","@value":"JP26800266"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-26800266/"}],"notation":[{"@language":"ja","@value":"長周期ミランコビッチサイクルに伴う炭素循環動態の解読"},{"@language":"en","@value":"Carbon cycle dynamics paced by the long-period Milankovitch cycle"}]}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360001114026871936","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"The contemporary physical and chemical flux of aeolian dust: A synthesis of direct measurements of dust deposition"}]},{"@id":"https://cir.nii.ac.jp/crid/1360005518376655488","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Biogenically induced bedded chert formation in the alkaline palaeo-lake of the Green River Formation"}]},{"@id":"https://cir.nii.ac.jp/crid/1360009142741276288","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Scarcity of chert in upper Lower Triassic Panthalassic deep-sea successions of Japan records elevated clastic inputs rather than depressed biogenic silica burial flux following the 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Late Triassic sponge mounds along the northwestern margin of the Yangtze Block, South China: Related to the Carnian Pluvial Phase?"}]},{"@id":"https://cir.nii.ac.jp/crid/1361418521459419136","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Siberian Traps large igneous province: Evidence for two flood basalt pulses around the Permo-Triassic boundary and in the Middle Triassic, and contemporaneous granitic magmatism"}]},{"@id":"https://cir.nii.ac.jp/crid/1361699995205765248","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Well‐documented travel history of Mesozoic pelagic chert in Japan: From remote ocean to subduction zone"}]},{"@id":"https://cir.nii.ac.jp/crid/1361981469253378688","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Pangaean climates: Megamonsoons of the 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