{"@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/1362544419085277952.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1111/iar.12019"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fiar.12019"}},{"identifier":{"@type":"URI","@value":"https://onlinelibrary.wiley.com/doi/pdf/10.1111/iar.12019"}}],"dc:title":[{"@value":"Petrographic study of the <scp>M</scp>iocene <scp>M</scp>izunami <scp>G</scp>roup, <scp>C</scp>entral <scp>J</scp>apan: Detection of unrecognized volcanic activity in the <scp>S</scp>etouchi <scp>P</scp>rovince"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title><jats:p>A petrographic study of sandstones from the <jats:styled-content style=\"fixed-case\">M</jats:styled-content>iocene <jats:styled-content style=\"fixed-case\">M</jats:styled-content>izunami <jats:styled-content style=\"fixed-case\">G</jats:styled-content>roup in <jats:styled-content style=\"fixed-case\">C</jats:styled-content>entral <jats:styled-content style=\"fixed-case\">J</jats:styled-content>apan has been performed on core samples from a single borehole, in order to evaluate the provenance of the sedimentary rock. Evaluation of the provenance is based on bulk mineral, heavy mineral and plagioclase contents and on whole rock chemical compositions. The sandstones studied are divisible into three types; the first type is characterized by the occurrence of biotite and plagioclase ranging from albite to oligoclase, the second type is characterized by the dominance of amphibole and labradorite with pyroxene (clinopyroxene > orthopyroxene), and the third type is characterized by the dominance of pyroxene (orthopyroxene > clinopyroxene) and andesine with lesser labradorite, bytownite and anorthite. The first type is interpreted to be derived from the basement granite, whereas the others were derived mostly from volcanic ash, judging from their mineral compositions. The volcanic activity that supplied the volcanic ash to the <jats:styled-content style=\"fixed-case\">M</jats:styled-content>izunami <jats:styled-content style=\"fixed-case\">B</jats:styled-content>asin occurred in two phases, distinguishable by variations in their mineralogical and geochemical compositions, an indication of change in character of the volcanic activity. This petrographic study of the sandstones in the <jats:styled-content style=\"fixed-case\">M</jats:styled-content>izunami <jats:styled-content style=\"fixed-case\">G</jats:styled-content>roup suggests that unrecognized volcanic activity occurred around the <jats:styled-content style=\"fixed-case\">M</jats:styled-content>izunami <jats:styled-content style=\"fixed-case\">B</jats:styled-content>asin, even though potential provenance of the volcanic ash has not yet been identified.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1382544419085277952","@type":"Researcher","foaf:name":[{"@value":"Eiji Sasao"}],"jpcoar:affiliationName":[{"@value":"Geological Isolation Research and Development Directorate Japan Atomic Energy Agency  1‐64 Yamanouchi Akiyo‐cho Mizunami‐shi Gifu 509‐6132 Japan"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"10384871"},{"@type":"EISSN","@value":"14401738"}],"prism:publicationName":[{"@value":"Island Arc"}],"dc:publisher":[{"@value":"Wiley"}],"prism:publicationDate":"2013-03-07","prism:volume":"22","prism:number":"2","prism:startingPage":"170","prism:endingPage":"184"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fiar.12019"},{"@id":"https://onlinelibrary.wiley.com/doi/pdf/10.1111/iar.12019"}],"createdAt":"2013-03-07","modifiedAt":"2023-10-30","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360004235527949824","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Dating of altered mafic intrusions by applying a zircon fission track thermochronometer to baked country rock, and implications for the timing of volcanic activity during the opening of the <scp>J</scp>apan <scp>S</scp>ea"}]},{"@id":"https://cir.nii.ac.jp/crid/1390014282705671552","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Correlation between pumiceous tuff beds of the Morozaki Group and the Mizunami Group"},{"@language":"ja","@value":"中新統，師崎層群と瑞浪層群に含まれる軽石質凝灰岩の対比"}]},{"@id":"https://cir.nii.ac.jp/crid/2050588892142899968","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Timing of clockwise rotation of Southwest Japan : constraints from new middle Miocene paleomagnetic results"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1111/iar.12019"},{"@type":"OPENAIRE","@value":"doi_dedup___::4b006f6396a6463ef36b1aaa9b0f8b04"},{"@type":"CROSSREF","@value":"10.1111/iar.12108_references_DOI_AF7SyEmKIskfj3x0xfW2UNs9Nw5"},{"@type":"CROSSREF","@value":"10.1186/s40623-015-0266-3_references_DOI_AF7SyEmKIskfj3x0xfW2UNs9Nw5"},{"@type":"CROSSREF","@value":"10.5575/geosoc.2023.0001_references_DOI_AF7SyEmKIskfj3x0xfW2UNs9Nw5"}]}