{"@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/1363670320143149184.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1130/g19885.1"}}],"dc:title":[{"@value":"Depth of oceanic-crust underplating in a subduction zone: Inferences from fluid-inclusion analyses of crack-seal veins"}],"description":[{"notation":[{"@value":"Fluid inclusions in crack-seal veins are analyzed in accreted melange now on land. The vein I inclusions are observed in the necked parts of sandstone blocks in melange, and the vein II inclusions developed in shale below the thrust fault, which cuts the melanges. The pressure and temperature estimations from the inclusions within vein I show that the cracks were sealed at ;125-195 8C under ;92-144 MPa of fluid pressure. Vein II formed in cracks that might have opened in a damage zone caused by the thrust fault as it broke through oceanic crust and into the melange; these veins contain fluid inclusions trapped at ;135-245 8C under ;107-149 MPa of fluid pressure. The depth ( ;4-6 km below the seafloor) and temperature estimates are consistent with the conditions where an aseismic decollement within sedimentary rocks steps down into the oceanic basement, so that a thin section of oceanic crust underplates in the hanging wall. Such a step-down site is the updip limit of the seismogenic zone in the modern Nankai Trough."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380004236799376781","@type":"Researcher","foaf:name":[{"@value":"M. Matsumura"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320143149186","@type":"Researcher","foaf:name":[{"@value":"Y. Hashimoto"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320143149189","@type":"Researcher","foaf:name":[{"@value":"G. Kimura"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320143149184","@type":"Researcher","foaf:name":[{"@value":"K. Ohmori-Ikehara"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320143149188","@type":"Researcher","foaf:name":[{"@value":"M. Enjohji"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670320143149187","@type":"Researcher","foaf:name":[{"@value":"E. Ikesawa"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00917613"}],"prism:publicationName":[{"@value":"Geology"}],"dc:publisher":[{"@value":"Geological Society of America"}],"prism:publicationDate":"2003","prism:volume":"31","prism:number":"11","prism:startingPage":"1005"},"reviewed":"false","createdAt":"2003-10-28","modifiedAt":"2018-03-18","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050306506454155648","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Alteration and dehydration of subducting oceanic crust within subduction zones : implications for decollement step-down and plate-boundary seismogenesis"},{"@value":"Alteration and dehydration of subducting oceanic crust within subduction zones : implications for décollement step-down and plate-boundary seismogenesis"}]},{"@id":"https://cir.nii.ac.jp/crid/1050857235853799168","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Megathrust Shear Modulated by Albite Metasomatism in Subduction Mélanges"}]},{"@id":"https://cir.nii.ac.jp/crid/1050869456409501312","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Quartz deposition and its influence on the deformation process of megathrusts in subduction zones"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004232523356800","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Difference in acoustic properties at seismogenic fault along a subduction interface: Application to estimation of effective pressure and fluid pressure ratio"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004235528127488","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Detrital zircon multi‐chronology, provenance, and low‐grade metamorphism of the <scp>C</scp>retaceous <scp>S</scp>himanto accretionary complex, eastern <scp>S</scp>hikoku, <scp>S</scp>outhwest <scp>J</scp>apan: <scp>T</scp>ectonic evolution in response to igneous activity within a subduction zone"}]},{"@id":"https://cir.nii.ac.jp/crid/1360017279847953408","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Hydrothermal Friction Experiments on Simulated Basaltic Fault Gouge and Implications for Megathrust Earthquakes"}]},{"@id":"https://cir.nii.ac.jp/crid/1360283691152112384","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Lithification 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