{"@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/1361699994510659712.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/2005gl022784"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2005GL022784"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2005GL022784"}}],"dc:title":[{"@value":"Mystery of the volcanic mass‐independent sulfur isotope fractionation signature in the Antarctic ice core"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>We simulate the record of sulfur mass‐independent fractionation (MIF) in sulfates found in the Antarctic ice cores from the 1991 eruption of Mt. Pinatubo. Discovery of MIF in sulfur isotopes in Archean/Early Proterozoic sediments and lack of MIF in sulfur in younger rocks placed a strict upper limit on the amount of oxidants and oxygen in the ancient Earth's atmosphere prior to 2.3 Gyr ago. However, recent measurements in ice cores suggest that some non‐zero MIF in sulfate can be delivered to Antarctica following large volcanic eruptions. Current photochemical experiments do not identify the specific reaction responsible for sulfur MIF production. Here we show that a time‐dependent non‐zero sulfur MIF can be delivered to the ground in the present atmosphere if the MIF–producing process is SO<jats:sub>3</jats:sub>photolysis. Fractionation from such photolysis has not been considered before, but is consistent with the available experimental data.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381699994510659713","@type":"Researcher","foaf:name":[{"@value":"A. A. Pavlov"}],"jpcoar:affiliationName":[{"@value":"Laboratory for Atmospheric and Space Physics University of Colorado at Boulder Boulder Colorado USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994510659714","@type":"Researcher","foaf:name":[{"@value":"M. J. Mills"}],"jpcoar:affiliationName":[{"@value":"Laboratory for Atmospheric and Space Physics University of Colorado at Boulder Boulder Colorado USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994510659712","@type":"Researcher","foaf:name":[{"@value":"O. B. Toon"}],"jpcoar:affiliationName":[{"@value":"Laboratory for Atmospheric and Space Physics University of Colorado at Boulder Boulder Colorado USA"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00948276"},{"@type":"EISSN","@value":"19448007"}],"prism:publicationName":[{"@value":"Geophysical Research Letters"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"2005-06","prism:volume":"32","prism:number":"12","prism:startingPage":"L12816"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2005GL022784"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2005GL022784"}],"createdAt":"2005-06-28","modifiedAt":"2025-01-02","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360022305565857408","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Ultraviolet absorption cross sections of carbonyl sulfide isotopologues OC\n                  <sup>32</sup>\n                  S, OC\n                  <sup>33</sup>\n                  S, OC\n                  <sup>34</sup>\n                  S and O\n                  <sup>13</sup>\n                  CS: isotopic fractionation in photolysis and atmospheric implications"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567190135521920","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"An isotopic analysis of ionising radiation as a source of sulphuric acid"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567190139864192","@type":"Article","resourceType":"preprint","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"An isotope view on ionising radiation as a source of sulphuric acid"}]},{"@id":"https://cir.nii.ac.jp/crid/1360580232136813568","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Sulfur mass-independent fractionation during SO2 photolysis in low-temperature/pressure atmospheres"}]},{"@id":"https://cir.nii.ac.jp/crid/1360846642062374144","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"SO<sub>2</sub>photoexcitation mechanism links mass-independent sulfur isotopic fractionation in cryospheric sulfate to climate impacting volcanism"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1029/2005gl022784"},{"@type":"CROSSREF","@value":"10.5194/acpd-11-20487-2011_references_DOI_95QTJ8XOE82beQ4yQlxtOVl43Sm"},{"@type":"CROSSREF","@value":"10.5194/acp-11-10293-2011_references_DOI_95QTJ8XOE82beQ4yQlxtOVl43Sm"},{"@type":"CROSSREF","@value":"10.5194/acp-12-5319-2012_references_DOI_95QTJ8XOE82beQ4yQlxtOVl43Sm"},{"@type":"CROSSREF","@value":"10.5194/acpd-12-5039-2012_references_DOI_95QTJ8XOE82beQ4yQlxtOVl43Sm"},{"@type":"CROSSREF","@value":"10.1016/j.chemgeo.2022.121064_references_DOI_95QTJ8XOE82beQ4yQlxtOVl43Sm"},{"@type":"CROSSREF","@value":"10.1073/pnas.1213153110_references_DOI_95QTJ8XOE82beQ4yQlxtOVl43Sm"}]}