{"@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/1360574095867876992.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1111/j.1440-1738.1994.tb00108.x"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1440-1738.1994.tb00108.x"}},{"identifier":{"@type":"URI","@value":"https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1440-1738.1994.tb00108.x"}},{"identifier":{"@type":"NAID","@value":"30022117295"}}],"dc:title":[{"@value":"Noble gas isotopic composition of deep underground water in Osaka plain, central Japan: Evidence for mantle He and model for new volcanism"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p><jats:bold>Abstract</jats:bold> Elemental and isotopic compositions of noble gases extracted from the bore hole water in Osaka plain, central Japan were examined. The water samples were collected from four shallow bore holes (180‐450 m) and seven deep bore holes (600‐1370 m) which have been used for an urban resort hot spring zone. The water temperatures of the deep bore holes were 22‐50°C and that of the shallow bore holes, 13‐23°C. The elemental abundance patterns show the progressive enrichment of the heavier noble gases compared with the atmospheric noble gas composition except for He, which is heavily enriched in deep bore hole water samples. <jats:sup>3</jats:sup>He/<jats:sup>4</jats:sup>He ratios from the bore holes reaching the Ryoke granitic basement were higher than the atmospheric value (1.4 × 10<jats:sup>−6</jats:sup>), indicating a release of mantle He through the basement. The highest value of 8.2 × 10<jats:sup>−6</jats:sup> is in the range of arc volcanism. On the other hand, the bore holes in sedimentary rocks overlying the basement release He enriched in radiogenic <jats:sup>4</jats:sup>He, resulted in a low <jats:sup>3</jats:sup>He/<jats:sup>4</jats:sup>He ratio of 0.5 × 10<jats:sup>−6</jats:sup>. <jats:sup>4</jats:sup>He/<jats:sup>20</jats:sup>Ne and <jats:sup>40</jats:sup>Ar/<jats:sup>36</jats:sup>Ar ratios indicate that the air contamination is generally larger in shallow bore holes than in deep ones from each site. The helium enriched in mantle He is compatible with the previous work which suggested up‐rising magma in ‘Kinki Spot’, the area of Osaka and western Wakayama, in spite of no volcanic activity in the area. A model to explain an initiation of magma generation beneath this area is presented.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380574095867876994","@type":"Researcher","foaf:name":[{"@value":"Toshinori Okada"}]},{"@id":"https://cir.nii.ac.jp/crid/1380574095867876993","@type":"Researcher","foaf:name":[{"@value":"Tetsumaru Itaya"}]},{"@id":"https://cir.nii.ac.jp/crid/1380574095867876995","@type":"Researcher","foaf:name":[{"@value":"Mitsuo Sato"}]},{"@id":"https://cir.nii.ac.jp/crid/1380574095867876992","@type":"Researcher","foaf:name":[{"@value":"Keisuke Nagao"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"10384871"},{"@type":"EISSN","@value":"14401738"},{"@type":"NCID","@value":"AA10848628"}],"prism:publicationName":[{"@value":"Island Arc"}],"dc:publisher":[{"@value":"Wiley"}],"prism:publicationDate":"1994-09","prism:volume":"3","prism:number":"3","prism:startingPage":"221","prism:endingPage":"231"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1440-1738.1994.tb00108.x"},{"@id":"https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1440-1738.1994.tb00108.x"}],"createdAt":"2006-04-05","modifiedAt":"2023-10-24","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1390282679528304128","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Relationship between geological structure and helium isotopes in deep ground-water from the Osaka Basin: Application to deep groundwater hydrology"},{"@value":"Relationship between geological structure and helium isotope in deep groundwater from the Osaka Basin: application to deep groundwater hydrology"}]},{"@id":"https://cir.nii.ac.jp/crid/1520572360212193536","@type":"Article","relationType":["isCitedBy"],"jpcoar:relatedTitle":[{"@value":"地質学に貢献する放射年代学--日本の現状と展望"},{"@language":"ja-Kana","@value":"チシツガク ニ コウケン スル ホウシャ ネンダイガク ニホン ノ ゲンジョウ ト テンボウ"},{"@language":"en","@value":"Radiometric chronology contributed to geology : a view in Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/2051433317070229760","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Arima hot spring waters as a deep-seated brine from subducting slab"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1111/j.1440-1738.1994.tb00108.x"},{"@type":"CIA","@value":"30022117295"},{"@type":"OPENAIRE","@value":"doi_dedup___::a647b96434737c4e5847dc6131952202"},{"@type":"CROSSREF","@value":"10.2343/geochemj.42.61_references_DOI_FEEHdqQ09QWSz8EwUyrPHx9vIAx"},{"@type":"CROSSREF","@value":"10.1186/1880-5981-66-119_references_DOI_FEEHdqQ09QWSz8EwUyrPHx9vIAx"}]}