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dc.contributor.authorSun, Anhui
dc.contributor.authorSun, Youshun
dc.contributor.authorZhang, Haijiang
dc.contributor.authorYu, Diming
dc.date.accessioned2016-12-21T14:55:39Z
dc.date.available2016-12-21T14:55:39Z
dc.date.issued2012-12
dc.date.submitted2012-10
dc.identifier.issn1674-4519
dc.identifier.issn1867-8777
dc.identifier.urihttp://hdl.handle.net/1721.1/105910
dc.description.abstractWe have developed crustal minimum 1-D P- and S-wave velocity models of the collision zone between the northern Tianshan mountain and the Junggar basin (86°E–89°E, 43°N–44.5°N). These two models were created through inversion of 1 370 P- and 1 396 S-wave travel times from 173 well-constrained local earthquakes recorded by the Ürümqi sparse local seismic network and temporary seismic arrays. In contrast to previous models, our results indicate relatively low velocity at both shallow (<10 km) and deep (30–45 km) depths. The shallow zone is interpreted to be the result of thick surficial sedimentary deposits, whereas the deeper anomaly is interpreted to result from ductile shearing and lower crustal flow. Additionally, we detected several transition layers under the lower crust, which may imply structural complexity of the uppermost mantle in this region. The improved models reduce the RMS residual of earthquake locations by 41.7% from 1.2 to 0.5 seconds. The more accurately located hypocenters appear to correlate with prominent local over-thrusts, which underlie an anticlinal fold belt and several blind faults. Positive station corrections are observed near the Junggar basin, which likely reflects low wave velocity; negative corrections near the Tianshan mountain and Bogda mountain suggest high wave velocity.en_US
dc.description.sponsorshipNational Natural Science Foundation (China) (Grant 41204037)en_US
dc.description.sponsorshipChina Earthquake Administration (Basic Research Project Grant 2012IES010103)en_US
dc.publisherSeismological Society of Chinaen_US
dc.relation.isversionofhttp://dx.doi.org/10.1007/s11589-012-0873-zen_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceSeismological Society of Chinaen_US
dc.title1-D P- and S-wave velocity models for the collision zone between the northern Tianshan mountain and the Junggar basin based on local earthquake dataen_US
dc.typeArticleen_US
dc.identifier.citationSun, Anhui et al. “1-D P- and S-Wave Velocity Models for the Collision Zone between the Northern Tianshan Mountain and the Junggar Basin Based on Local Earthquake Data.” Earthquake Science 25.5–6 (2012): 495–503.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciencesen_US
dc.contributor.mitauthorSun, Youshun
dc.relation.journalEarthquake Scienceen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2016-08-18T15:47:35Z
dc.language.rfc3066en
dc.rights.holderThe Seismological Society of China, Institute of Geophysics, ChinaEarthquake Administration, and Springer-VerlagBerlin Heidelberg
dspace.orderedauthorsSun, Anhui; Sun, Youshun; Zhang, Haijiang; Yu, Dimingen_US
dspace.embargo.termsNen
mit.licensePUBLISHER_POLICYen_US


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