{"@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/1361137045003760896.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1002/2014jb011638"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2F2014JB011638"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1002/2014JB011638"}}],"dc:title":[{"@value":"Multiparameter adjoint tomography of the crust and upper mantle beneath East Asia: 1. Model construction and comparisons"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title><jats:p>We present a 3‐D radially anisotropic model of the crust and mantle beneath East Asia down to 900 km depth. Adjoint tomography based on a spectral element method is applied to a phenomenal data set comprising 1.7 million frequency‐dependent traveltime measurements from waveforms of 227 earthquakes recorded by 1869 stations. Compressional wave speeds are independently constrained and simultaneously inverted along with shear wave speeds (<jats:italic>V</jats:italic><jats:sub>SH</jats:sub> and <jats:italic>V</jats:italic><jats:sub>SV</jats:sub>) using the same waveform data set with comparable resolution. After 20 iterations, the new model (named EARA2014) exhibits sharp and detailed wave speed anomalies with improved correlations with surface tectonic units compared to previous models. In the upper 100 km, high wave speed (high‐V) anomalies correlate very well with the Junggar and Tarim Basins, the Ordos Block, and the Yangtze Platform, while strong low wave speed (low‐V) anomalies coincide with the Qiangtang Block, the Songpan Ganzi Fold Belt, the Chuandian Block, the Altay‐Sayan Mountain Range, and the back‐arc basins along the Pacific and Philippine Sea Plate margins. At greater depths, narrow high‐V anomalies correspond to major subduction zones and broad high‐V anomalies to cratonic roots in the upper mantle and fragmented slabs in the mantle transition zone. In particular, EARA2014 reveals a strong high‐V structure beneath Tibet, appearing below 100 km depth and extending to the bottom of the mantle transition zone, and laterally spanning across the Lhasa and Qiangtang Blocks. In this paper we emphasize technical aspects of the model construction and provide a general discussion through comparisons.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381137045003760899","@type":"Researcher","foaf:name":[{"@value":"Min Chen"}],"jpcoar:affiliationName":[{"@value":"Department of Earth Science Rice University  Houston Texas USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137045003760896","@type":"Researcher","foaf:name":[{"@value":"Fenglin Niu"}],"jpcoar:affiliationName":[{"@value":"Department of Earth Science Rice University  Houston Texas USA"},{"@value":"State Key Laboratory of Petroleum Resource and Prospecting, and Unconventional Natural Gas Institute China University of Petroleum  Beijing China"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137045003760898","@type":"Researcher","foaf:name":[{"@value":"Qinya Liu"}],"jpcoar:affiliationName":[{"@value":"Department of Physics University of Toronto  Toronto Ontario Canada"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137045003760900","@type":"Researcher","foaf:name":[{"@value":"Jeroen Tromp"}],"jpcoar:affiliationName":[{"@value":"Department of Geosciences Princeton University  Princeton New Jersey USA"},{"@value":"Program in Applied and Computational Mathematics Princeton University  Princeton New Jersey USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137045003760897","@type":"Researcher","foaf:name":[{"@value":"Xiufen Zheng"}],"jpcoar:affiliationName":[{"@value":"Institute of Geophysics China Earthquake Administration  Beijing China"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"21699313"},{"@type":"EISSN","@value":"21699356"}],"prism:publicationName":[{"@value":"Journal of Geophysical Research: Solid Earth"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"2015-03","prism:volume":"120","prism:number":"3","prism:startingPage":"1762","prism:endingPage":"1786"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2F2014JB011638"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1002/2014JB011638"}],"createdAt":"2015-01-31","modifiedAt":"2023-09-16","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360567182379054336","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"P and S wave tomography of Japan subduction zone from joint inversions of local and teleseismic travel times and surface-wave data"}]},{"@id":"https://cir.nii.ac.jp/crid/1360588380144914176","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Whole‐Mantle Isotropic and Anisotropic Tomography Beneath Japan and Adjacent Regions"}]},{"@id":"https://cir.nii.ac.jp/crid/1360869855574156800","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Upper mantle structure beneath the Mongolian region from multimode surface waves: Implications for the western margin of Amurian plate"}]},{"@id":"https://cir.nii.ac.jp/crid/2051714791982503936","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Adjoint tomography of the crust and upper mantle structure beneath the Kanto region using broadband seismograms"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1002/2014jb011638"},{"@type":"CROSSREF","@value":"10.1186/s40645-017-0143-8_references_DOI_9bBwZOIKVlpHz7crvR5tyLI3s7S"},{"@type":"CROSSREF","@value":"10.1016/j.pepi.2016.01.002_references_DOI_9bBwZOIKVlpHz7crvR5tyLI3s7S"},{"@type":"CROSSREF","@value":"10.1029/2024jb029593_references_DOI_9bBwZOIKVlpHz7crvR5tyLI3s7S"},{"@type":"CROSSREF","@value":"10.1016/j.tecto.2024.230506_references_DOI_9bBwZOIKVlpHz7crvR5tyLI3s7S"}]}