{"@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/1362262944760930816.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1126/science.283.5405.1142"}},{"identifier":{"@type":"URI","@value":"https://www.science.org/doi/pdf/10.1126/science.283.5405.1142"}}],"dc:title":[{"@value":"Cristobalite in Volcanic Ash of the Soufriere Hills Volcano, Montserrat, British West Indies"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>Crystalline silica (mostly cristobalite) was produced by vapor-phase crystallization and devitrification in the andesite lava dome of the Soufriere Hills volcano, Montserrat. The sub–10-micrometer fraction of ash generated by pyroclastic flows formed by lava dome collapse contains 10 to 24 weight percent crystalline silica, an enrichment of 2 to 5 relative to the magma caused by selective crushing of the groundmass. The sub–10-micrometer fraction of ash generated by explosive eruptions has much lower contents (3 to 6 percent) of crystalline silica. High levels of cristobalite in respirable ash raise concerns about adverse health effects of long-term human exposure to ash from lava dome eruptions.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380005521910510724","@type":"Researcher","foaf:name":[{"@value":"P. J. Baxter"}],"jpcoar:affiliationName":[{"@value":"Department of Community Medicine, University of Cambridge, Gresham Road, Cambridge, CB12 ES, UK."}]},{"@id":"https://cir.nii.ac.jp/crid/1382262944760930816","@type":"Researcher","foaf:name":[{"@value":"C. Bonadonna"}],"jpcoar:affiliationName":[{"@value":"Department of Earth Sciences, Bristol University, Queens Road, Bristol BS8 1RJ, UK."}]},{"@id":"https://cir.nii.ac.jp/crid/1382262944760930827","@type":"Researcher","foaf:name":[{"@value":"R. Dupree"}],"jpcoar:affiliationName":[{"@value":"Department of Physics, University of Warwick, Coventry CV4 7AL, UK."}]},{"@id":"https://cir.nii.ac.jp/crid/1382262944760930825","@type":"Researcher","foaf:name":[{"@value":"V. L. Hards"}],"jpcoar:affiliationName":[{"@value":"British Geological Survey, Keyworth, Nottingham NG12 5GG, UK."}]},{"@id":"https://cir.nii.ac.jp/crid/1382262944760930823","@type":"Researcher","foaf:name":[{"@value":"S. C. Kohn"}],"jpcoar:affiliationName":[{"@value":"Department of Earth Sciences, Bristol University, Queens Road, Bristol BS8 1RJ, UK."}]},{"@id":"https://cir.nii.ac.jp/crid/1382262944760930822","@type":"Researcher","foaf:name":[{"@value":"M. D. Murphy"}],"jpcoar:affiliationName":[{"@value":"Department of Earth Sciences, Bristol University, Queens Road, Bristol BS8 1RJ, UK."}]},{"@id":"https://cir.nii.ac.jp/crid/1382262944760930817","@type":"Researcher","foaf:name":[{"@value":"A. Nichols"}],"jpcoar:affiliationName":[{"@value":"Institute of Occupational Medicine, 8 Roxburgh Place, Edinburgh EH8 9SU, UK."}]},{"@id":"https://cir.nii.ac.jp/crid/1382262944760930821","@type":"Researcher","foaf:name":[{"@value":"R. A. Nicholson"}],"jpcoar:affiliationName":[{"@value":"British Geological Survey, Keyworth, Nottingham NG12 5GG, UK."}]},{"@id":"https://cir.nii.ac.jp/crid/1382262944760930824","@type":"Researcher","foaf:name":[{"@value":"G. Norton"}],"jpcoar:affiliationName":[{"@value":"British Geological Survey, Keyworth, Nottingham NG12 5GG, UK."}]},{"@id":"https://cir.nii.ac.jp/crid/1382262944760930818","@type":"Researcher","foaf:name":[{"@value":"A. Searl"}],"jpcoar:affiliationName":[{"@value":"Institute of Occupational Medicine, 8 Roxburgh Place, Edinburgh EH8 9SU, UK."}]},{"@id":"https://cir.nii.ac.jp/crid/1382262944760930826","@type":"Researcher","foaf:name":[{"@value":"R. S. J. Sparks"}],"jpcoar:affiliationName":[{"@value":"Department of Earth Sciences, Bristol University, Queens Road, Bristol BS8 1RJ, UK."}]},{"@id":"https://cir.nii.ac.jp/crid/1382262944760930819","@type":"Researcher","foaf:name":[{"@value":"B. P. Vickers"}],"jpcoar:affiliationName":[{"@value":"British Geological Survey, Keyworth, Nottingham NG12 5GG, UK."}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00368075"},{"@type":"EISSN","@value":"10959203"}],"prism:publicationName":[{"@value":"Science"}],"dc:publisher":[{"@value":"American Association for the Advancement of Science (AAAS)"}],"prism:publicationDate":"1999-02-19","prism:volume":"283","prism:number":"5405","prism:startingPage":"1142","prism:endingPage":"1145"},"reviewed":"false","url":[{"@id":"https://www.science.org/doi/pdf/10.1126/science.283.5405.1142"}],"createdAt":"2002-07-27","modifiedAt":"2024-01-13","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050282810831501696","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Statistical analysis of dispersal and deposition patterns of volcanic emissions from Mt. 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