{"@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/1361137045286285568.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1038/356593a0"}},{"identifier":{"@type":"URI","@value":"http://www.nature.com/articles/356593a0"}},{"identifier":{"@type":"URI","@value":"http://www.nature.com/articles/356593a0.pdf"}}],"dc:title":[{"@value":"Seismological evidence for metastable olivine inside a subducting slab"}],"description":[{"notation":[{"@value":"THE nature and location of the olivine–spinel phase transition inside subducting slabs differ greatly from the situation in the surrounding mantle, due to the different temperature distribution inside the slabs. Two models have been proposed for this phase transition: one in which the location of the phase boundary between olivine and modified (β-phase) spinel is determined by equilibrium thermodynamics1, and the other including a metastable olivine phase which persists to a depth of ∼550 km (ref. 2). The location of the olivine–spinel transition in the slab may be relevant to the generation of deep earthquakes3–5, and to the buoyancy forces driving subduction6. Here we use travel-time residuals from deep earthquakes recorded by the dense seismograph network in Japan to investigate the configuration of the olivine–spinel phase boundary inside the subducting Pacific plate. Theoretical travel-time residuals for the equilibrium model do not fit the observed residuals, whereas those for the metastable model do, implying the presence of metastable olivine inside the subducting slab."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381137045286285568","@type":"Researcher","foaf:name":[{"@value":"Takashi lidaka"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137045286285569","@type":"Researcher","foaf:name":[{"@value":"Daisuke Suetsugu"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00280836"},{"@type":"EISSN","@value":"14764687"}],"prism:publicationName":[{"@value":"Nature"}],"dc:publisher":[{"@value":"Springer Science and Business Media LLC"}],"prism:publicationDate":"1992-04","prism:volume":"356","prism:number":"6370","prism:startingPage":"593","prism:endingPage":"595"},"reviewed":"false","dc:rights":["http://www.springer.com/tdm"],"url":[{"@id":"http://www.nature.com/articles/356593a0"},{"@id":"http://www.nature.com/articles/356593a0.pdf"}],"createdAt":"2003-08-12","modifiedAt":"2023-05-17","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360004232135200384","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Metastable olivine wedge and deep dry cold slab beneath southwest Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004232324688896","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Seismic imaging of the Asian orogens and subduction zones"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004232425620224","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Detection of metastable olivine wedge in the western Pacific slab and its geodynamic implications"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004233541721216","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Tomography of the subducting Pacific slab and the 2015 Bonin deepest earthquake (Mw 7.9)"}]},{"@id":"https://cir.nii.ac.jp/crid/1360013168780265088","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Seismic imaging of Northwest Pacific and East Asia: New insight into volcanism, seismogenesis and geodynamics"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285704783159936","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Enhanced waveguide effect for deep‐focus earthquakes in the subducting Pacific slab produced by a metastable olivine wedge"}]},{"@id":"https://cir.nii.ac.jp/crid/1360565164303294592","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"A consistent model for fluid distribution, viscosity distribution, and flow‐thermal structure in subduction zone"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567181152065920","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"In situ observation of a phase transition in Fe2SiO4 at high pressure and high temperature"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567183244421248","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Roles of Hydrous Lithospheric Mantle in Deep Water Transportation and Subduction Dynamics"}]},{"@id":"https://cir.nii.ac.jp/crid/1360576118779429632","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Dry metastable olivine and slab deformation in a wet subducting slab"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679279712768","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Current Status and Perspective for Seismological Studies on the Mantle and Core Conducted in Japan"},{"@language":"ja","@value":"マントル・コア構造の地震学的研究"},{"@value":"マントル・コア構造の地震学的研究--日本の現状と展望"},{"@language":"ja-Kana","@value":"マントル コア コウゾウ ノ ジシンガクテキ ケンキュウ ニホン ノ ゲンジョウ ト テンボウ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681490220032","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Detailed structure of the upper mantle discontinuities around the Japan subduction zone imaged by receiver function 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