{"@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/1390282679527376384.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.2343/geochemj.39.469"}},{"identifier":{"@type":"COI","@value":"1:CAS:528:DC%2BD28XhtVOi"}},{"identifier":{"@type":"NDL_BIB_ID","@value":"7687962"}},{"identifier":{"@type":"URI","@value":"http://id.ndl.go.jp/bib/7687962"}},{"identifier":{"@type":"URI","@value":"https://ndlsearch.ndl.go.jp/books/R000000004-I7687962"}},{"identifier":{"@type":"URI","@value":"http://www.jstage.jst.go.jp/article/geochemj/39/5/39_5_469/_pdf"}},{"identifier":{"@type":"NAID","@value":"10016771646"}}],"dc:title":[{"@language":"en","@value":"Gas compositions and helium isotopic ratios of fluid samples around Kueishantao, NE offshore Taiwan and its tectonic implications"}],"dc:language":"en","description":[{"type":"abstract","notation":[{"@language":"en","@value":"Kueishantao is a Holocene volcanic islet (<7,000 yrs) located at NE offshore Taiwan, and tectonically is part of western extension of the Okinawa Trough. Magmatic activities are considered very active around this area on the basis of the fact that on-land fumaroles and submarine hydrothermal systems are prevailing currently. Representative bubble gas samples from submarine hydrothermal vents were collected for gas composition and helium isotope analysis. The gases show similar compositions of low temperatre fumaroles in the world, i.e., with high CO<SUB>2</SUB> and H<SUB>2</SUB>S but low SO<SUB>2</SUB> and HCl contents. They exhibit consistent high <SUP>3</SUP>He/<SUP>4</SUP>He ratios (7.3-8.4 <I>R<SUB>A</SUB></I>, where <I>R<SUB>A</SUB></I> is the <SUP>3</SUP>He/<SUP>4</SUP>He ratio of air), probably the highest <SUP>3</SUP>He/<SUP>4</SUP>He values of gases ever reported in active hydrothermal areas of the western Pacific region. Meanwhile, seawater samples around Kueishantao and other fluid samples from I-Lan Plain, the land area closest to the Kueishantao and also the southernmost part of the Okinawa Trough, show a significant excess of <SUP>3</SUP>He compositions as well. This indicates that the mantle component plays an important role for their gas sources, and implies that the mantle fluids may have invaded into I-Lan Plain. The westward opening of the Okinawa Trough may have caused thinning of the continental crust and produced deep normal faults and hence, the primordial <SUP>3</SUP>He is able to degas from mantle source region without significant crust contamination."}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410282679527271552","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000001662134"}],"foaf:name":[{"@language":"en","@value":"Yang Tsanyao Frank"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Geosciences, National Taiwan University"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282679527376386","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000001662168"}],"foaf:name":[{"@language":"en","@value":"Lan Tefang Faith"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Geosciences, National Taiwan University"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282679527376389","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000001662170"}],"foaf:name":[{"@language":"en","@value":"Lee Hsiao-Fen"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Geosciences, National Taiwan University"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282679527376387","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000001662173"}],"foaf:name":[{"@language":"en","@value":"Chuang Pei-Chuan"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Geosciences, National Taiwan University"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282679527271553","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000001662132"}],"foaf:name":[{"@language":"en","@value":"Fu Ching-Chou"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Geosciences, National Taiwan University"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282679527376392","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000001662174"}],"foaf:name":[{"@language":"en","@value":"Lo Ching-Hua"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Geosciences, National Taiwan University"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282679527376388","@type":"Researcher","foaf:name":[{"@language":"en","@value":"Chen Cheng-Hong"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Geosciences, National Taiwan University"},{"@language":"en","@value":"National Applied Research Laboratories"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282679527376390","@type":"Researcher","foaf:name":[{"@language":"en","@value":"Chen Chen-Tung Arthur"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Institute of Marine Geology and Chemistry, National Sun Yat-Sen University"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282679527376384","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000001662177"}],"foaf:name":[{"@language":"en","@value":"Lee Chao-Shing"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Institute of Applied Geophysics, National Taiwan Ocean University"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00167002"},{"@type":"LISSN","@value":"00167002"},{"@type":"EISSN","@value":"18805973"},{"@type":"NDL_BIB_ID","@value":"000000128646"},{"@type":"ISSN","@value":"00167002"},{"@type":"NCID","@value":"AA00654975"}],"prism:publicationName":[{"@language":"en","@value":"GEOCHEMICAL JOURNAL"},{"@language":"ja","@value":"ＧＥＯＣＨＥＭＩＣＡＬ　ＪＯＵＲＮＡＬ"},{"@language":"en","@value":"Geochem. J."},{"@language":"ja","@value":"Ｇｅｏｃｈｅｍ．　Ｊ．"}],"dc:publisher":[{"@language":"en","@value":"GEOCHEMICAL SOCIETY OF JAPAN"},{"@language":"ja","@value":"一般社団法人日本地球化学会"}],"prism:publicationDate":"2005","prism:volume":"39","prism:number":"5","prism:startingPage":"469","prism:endingPage":"480"},"reviewed":"false","url":[{"@id":"http://id.ndl.go.jp/bib/7687962"},{"@id":"https://ndlsearch.ndl.go.jp/books/R000000004-I7687962"},{"@id":"http://www.jstage.jst.go.jp/article/geochemj/39/5/39_5_469/_pdf"}],"availableAt":"2005","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=%3CSUP%3E3%3C/SUP%3EHe/%3CSUP%3E4%3C/SUP%3EHe%20ratios","dc:title":"<SUP>3</SUP>He/<SUP>4</SUP>He ratios"},{"@id":"https://cir.nii.ac.jp/all?q=Okinawa%20Trough","dc:title":"Okinawa Trough"},{"@id":"https://cir.nii.ac.jp/all?q=Kueishantao","dc:title":"Kueishantao"},{"@id":"https://cir.nii.ac.jp/all?q=hot%20springs","dc:title":"hot springs"},{"@id":"https://cir.nii.ac.jp/all?q=Taiwan","dc:title":"Taiwan"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360004232324656384","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Magma-derived CO2 emissions in the Tengchong volcanic field, SE Tibet: Implications for deep carbon cycle at intra-continent subduction zone"}]},{"@id":"https://cir.nii.ac.jp/crid/1360011146020829184","@type":"Article","relationType":["references","cites"],"jpcoar:relatedTitle":[{"@value":"Retention of Solar Helium and Neon in IDPs in Deep Sea Sediment"}]},{"@id":"https://cir.nii.ac.jp/crid/1360011146102150656","@type":"Article","relationType":["references","cites"],"jpcoar:relatedTitle":[{"@value":"Remnant magmatic activity in the Coastal Range of East Taiwan after arc–continent collision: fission-track data and ratio 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An Overview of Noble Gas Geochemistry and Cosmochemistry"}]},{"@id":"https://cir.nii.ac.jp/crid/1361981469148895616","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@value":"Noble Gases and Volatile Recycling at Subduction Zones"}]},{"@id":"https://cir.nii.ac.jp/crid/1361981469153055744","@type":"Article","relationType":["references","cites"],"jpcoar:relatedTitle":[{"@value":"Initiation of arc magmatism in an embryonic continental rifting zone of the southernmost part of Okinawa Trough"}]},{"@id":"https://cir.nii.ac.jp/crid/1361981470150969216","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"High 3He/4He ratios in the Manus backarc basin: Implications for mantle mixing and the origin of plumes in the western Pacific Ocean"}]},{"@id":"https://cir.nii.ac.jp/crid/1362262944443133952","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Exhalation of radon and its carrier gases in SW Taiwan"}]},{"@id":"https://cir.nii.ac.jp/crid/1362262944532412928","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"A date for volcanic eruption inferred from a siltstone xenolith"}]},{"@id":"https://cir.nii.ac.jp/crid/1362544418642914176","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@value":"An Overview of Noble Gas Geochemistry and Cosmochemistry"}]},{"@id":"https://cir.nii.ac.jp/crid/1362544419179938432","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Magmatic helium in subduction-zone natural gases"}]},{"@id":"https://cir.nii.ac.jp/crid/1362544419917824896","@type":"Article","relationType":["references","cites"],"jpcoar:relatedTitle":[{"@value":"Geochemical Constraints for the Genesis of Post-collisional Magmatism and the Geodynamic Evolution of the Northern Taiwan Region"}]},{"@id":"https://cir.nii.ac.jp/crid/1362544420054559744","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"9. Noble Gases and Volatile Recycling at Subduction Zones"}]},{"@id":"https://cir.nii.ac.jp/crid/1362544420882101888","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Seismic record of tectonic evolution and backarc rifting in the southern Ryukyu island arc system"}]},{"@id":"https://cir.nii.ac.jp/crid/1362544420915479808","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Okinawa Trough: Origin of a back-arc basin"}]},{"@id":"https://cir.nii.ac.jp/crid/1362544421430219776","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Post-collisional magmatism around northern Taiwan and its relation with opening of the Okinawa Trough"}]},{"@id":"https://cir.nii.ac.jp/crid/1362825893698249856","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Spatial distribution and temporal variation of 3 He/ 4 He in hot spring gas released from Unzen volcanic area, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1362825894644807040","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Extensional collapse of the northern Taiwan mountain belt"}]},{"@id":"https://cir.nii.ac.jp/crid/1362825894932627200","@type":"Article","relationType":["references","cites"],"jpcoar:relatedTitle":[{"@value":"Melting features along the western Ryukyu slab edge (northeast Taiwan): Tomographic evidence"}]},{"@id":"https://cir.nii.ac.jp/crid/1362825895380138112","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Noble Gas Geochemistry"}]},{"@id":"https://cir.nii.ac.jp/crid/1363107368830764160","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Fumarolic Gas Composition of the Tatun Volcano Group,Northern Taiwan"}]},{"@id":"https://cir.nii.ac.jp/crid/1363107369759304448","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Recycling of oceanic crust and 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vents at Kueishantao, offshore northeast Taiwan"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679529694208","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Compositions of non-hydrocarbon and noble gases in natural gas samples from Tarim Basin, China"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679529905024","@type":"Article","relationType":["isReferencedBy","isCitedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Soil radon flux and concentrations in hydrothermal area of the Tatun Volcano Group, Northern Taiwan"}]},{"@id":"https://cir.nii.ac.jp/crid/1570009750345913856","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Petrology of the Pleistocene andesite from Kueishantao, Northern Taiwan"}]},{"@id":"https://cir.nii.ac.jp/crid/1570009751551692160","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Okinawa Trough : origin of a back-arc 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Taiwan"}]},{"@id":"https://cir.nii.ac.jp/crid/1570291225322626432","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Magmatism at the onset of back-arc basin spreading in the Okinawa Trough"}]},{"@id":"https://cir.nii.ac.jp/crid/1570572700086266880","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Spatial distribution and temporal variation of ^3He/^4He in hot springs gas released from Unzen volcanic area, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1570572700299335168","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Generation of high-Mg andesites in the Kueishantao volcano, the southernmost part of the Okinawa Trough"}]},{"@id":"https://cir.nii.ac.jp/crid/1570572700299337600","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@language":"en","@value":"A refined historical record of volcanic eruptions around Taiwan : tectonic 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