{"@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/1360004233429466112.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1038/ncomms3455"}},{"identifier":{"@type":"URI","@value":"http://www.nature.com/articles/ncomms3455.pdf"}},{"identifier":{"@type":"URI","@value":"http://www.nature.com/articles/ncomms3455"}},{"identifier":{"@type":"URI","@value":"https://www.nature.com/articles/ncomms3455.pdf"}},{"identifier":{"@type":"PMID","@value":"24036603"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@value":"Osmium isotope evidence for a large Late Triassic impact event"}],"description":[{"notation":[{"@value":"Anomalously high platinum group element concentrations have previously been reported for Upper Triassic deep-sea sediments, which are interpreted to be derived from an extraterrestrial impact event. Here we report the osmium (Os) isotope fingerprint of an extraterrestrial impact from Upper Triassic chert successions in Japan. Os isotope data exhibit a marked negative excursion from an initial Os isotope ratio ((187)Os/(188)Osi) of ~0.477 to unradiogenic values of ~0.126 in a platinum group element-enriched claystone layer, indicating the input of meteorite-derived Os into the sediments. The timing of the Os isotope excursion coincides with both elevated Os concentrations and low Re/Os ratios. The magnitude of this negative Os isotope excursion is comparable to those found at Cretaceous-Paleogene boundary sites. These geochemical lines of evidence demonstrate that a large impactor (3.3-7.8 km in diameter) produced a global decrease in seawater (187)Os/(188)Os ratios in the Late Triassic."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380004233429466381","@type":"Researcher","foaf:name":[{"@value":"Honami Sato"}]},{"@id":"https://cir.nii.ac.jp/crid/1420845751164015488","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"60404472"},{"@type":"NRID","@value":"1000060404472"},{"@type":"CINII_AUTHOR_ID","@value":"DA19510148"},{"@type":"URI","@value":"https://ci.nii.ac.jp/author/DA19510148#entity"},{"@type":"URI","@value":"https://viaf.org/viaf/NII%7CDA19510148"},{"@type":"NRID","@value":"9000257860456"},{"@type":"NRID","@value":"9000017480186"},{"@type":"NRID","@value":"9000367411253"},{"@type":"NRID","@value":"9000409996798"},{"@type":"NRID","@value":"9000401964372"},{"@type":"NRID","@value":"9000405091836"},{"@type":"NRID","@value":"9000240048172"},{"@type":"NRID","@value":"9000402263493"},{"@type":"NRID","@value":"9000004267824"},{"@type":"NRID","@value":"9000336758167"},{"@type":"NRID","@value":"9000410649840"},{"@type":"NRID","@value":"9000388497684"},{"@type":"NRID","@value":"9000019183783"},{"@type":"NRID","@value":"9000021915681"},{"@type":"NRID","@value":"9000402247710"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/tetsuji_onoue"}],"foaf:name":[{"@value":"Tetsuji Onoue"}]},{"@id":"https://cir.nii.ac.jp/crid/1420282801194113280","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"10553068"},{"@type":"NRID","@value":"1000010553068"},{"@type":"NRID","@value":"9000019008442"},{"@type":"NRID","@value":"9000347136036"},{"@type":"NRID","@value":"9000311505434"},{"@type":"NRID","@value":"9000338418865"},{"@type":"NRID","@value":"9000412200529"},{"@type":"NRID","@value":"9000370281367"},{"@type":"NRID","@value":"9000412151087"},{"@type":"NRID","@value":"9000412078057"},{"@type":"NRID","@value":"9000345439042"},{"@type":"NRID","@value":"9000412001497"},{"@type":"NRID","@value":"9000338418959"},{"@type":"NRID","@value":"9000338418915"},{"@type":"NRID","@value":"9000368919152"},{"@type":"NRID","@value":"9000345439064"},{"@type":"NRID","@value":"9000292881555"},{"@type":"NRID","@value":"9000345439133"},{"@type":"NRID","@value":"9000338418770"},{"@type":"NRID","@value":"9000345439006"},{"@type":"NRID","@value":"9000411954098"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/t-nozaki"}],"foaf:name":[{"@value":"Tatsuo Nozaki"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004233429465990","@type":"Researcher","foaf:name":[{"@value":"Katsuhiko Suzuki"}]}],"publication":{"publicationIdentifier":[{"@type":"EISSN","@value":"20411723"}],"prism:publicationName":[{"@value":"Nature Communications"}],"dc:publisher":[{"@value":"Springer Science and Business Media LLC"}],"prism:publicationDate":"2013-09-16","prism:volume":"4","prism:number":"1","prism:startingPage":"2455"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","dc:rights":["http://creativecommons.org/licenses/by-nc-sa/3.0"],"url":[{"@id":"http://www.nature.com/articles/ncomms3455.pdf"},{"@id":"http://www.nature.com/articles/ncomms3455"},{"@id":"https://www.nature.com/articles/ncomms3455.pdf"}],"createdAt":"2013-09-16","modifiedAt":"2023-01-06","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=Geologic%20Sediments","dc:title":"Geologic Sediments"},{"@id":"https://cir.nii.ac.jp/all?q=Geological%20Phenomena","dc:title":"Geological Phenomena"},{"@id":"https://cir.nii.ac.jp/all?q=Time%20Factors","dc:title":"Time Factors"},{"@id":"https://cir.nii.ac.jp/all?q=Oceans%20and%20Seas","dc:title":"Oceans and Seas"},{"@id":"https://cir.nii.ac.jp/all?q=Osmium","dc:title":"Osmium"},{"@id":"https://cir.nii.ac.jp/all?q=Article","dc:title":"Article"},{"@id":"https://cir.nii.ac.jp/all?q=Rhenium","dc:title":"Rhenium"},{"@id":"https://cir.nii.ac.jp/all?q=Isotopes","dc:title":"Isotopes"},{"@id":"https://cir.nii.ac.jp/all?q=Japan","dc:title":"Japan"}],"project":[{"@id":"https://cir.nii.ac.jp/crid/1040000782161490944","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"23540535"},{"@type":"JGN","@value":"JP23540535"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23540535/"}],"notation":[{"@language":"ja","@value":"現世および新生代海洋におけるマンガンクラストの形成環境"},{"@language":"en","@value":"Environment of Deposition of Manganese Crusts in the Modern and Cenozoic Oceans"}]},{"@id":"https://cir.nii.ac.jp/crid/1040282257159204096","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"23740378"},{"@type":"JGN","@value":"JP23740378"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23740378/"}],"notation":[{"@language":"ja","@value":"溶融宇宙塵の化学組成から求める大気酸素分圧の時代変遷"},{"@language":"en","@value":"Geochemical and mineralogical study for estimating past oxygen partial pressure from ancient cosmic spherules"}]},{"@id":"https://cir.nii.ac.jp/crid/1040282257204507136","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"24740360"},{"@type":"JGN","@value":"JP24740360"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24740360/"}],"notation":[{"@language":"ja","@value":"Ｒｅ－Ｏｓ放射壊変系による黒鉱・石油鉱床の生成年代決定と成因の解明"},{"@language":"en","@value":"Re-Os geochronology of the kuroko and petroleum deposits and their metallogenic 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