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Article: Crustal structures in the area of the 2008 Sichuan earthquake from seismologic and gravimetric data

TitleCrustal structures in the area of the 2008 Sichuan earthquake from seismologic and gravimetric data
Authors
KeywordsCrustal structures
Gravity modelling
Longmen Shan
Receiver functions
Issue Date2010
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/tecto
Citation
Tectonophysics, 2010, v. 491 n. 1-4, p. 205-210 How to Cite?
AbstractThe 12 May 2008 the Sichuan earthquake was one of the worst natural disasters in China. Here, we present a detailed picture of the epicentral area inferred geophysical data. Based on the analysis of teleseismic data acquired by a dense seismic network, we highlight an abrupt 20. km Moho offset between the Sichuan Basin and the Tibetan plateau and a horizontal discontinuity at ~15 km depth, which may connect with the ruptured zone of the 2008 event. We obtain low mean crustal velocity ratios, which suggest the absence of a thick and extensive zone of partial melt within the crust beneath the eastern part of the Songpan-Garze Terrane. All our data support the idea that the Longmen Shan range mark a zone of active strain localization due to the rigid Yangtze craton resisting eastward displacement of the Tibetan Plateau. © 2009 Elsevier B.V.
Persistent Identifierhttp://hdl.handle.net/10722/72948
ISSN
2015 Impact Factor: 2.65
2015 SCImago Journal Rankings: 1.971
ISI Accession Number ID
Funding AgencyGrant Number
INSU/CNRS
ANR
Funding Information:

We are grateful to many people who participated in measurements campaign, especially students from the Chengdu University and Southwest Petroleum University. Funding was provided by INSU/CNRS (Relief and Dyeti programs) and ANR grants. Thoughtful reviews from anonymous reviewers significantly improved the manuscript.

References

 

DC FieldValueLanguage
dc.contributor.authorRobert, Aen_HK
dc.contributor.authorZhu, Jen_HK
dc.contributor.authorVergne, Jen_HK
dc.contributor.authorCattin, Ren_HK
dc.contributor.authorChan, LSen_HK
dc.contributor.authorWittlinger, Gen_HK
dc.contributor.authorHerquel, Gen_HK
dc.contributor.authorde Sigoyer, Jen_HK
dc.contributor.authorPubellier, Men_HK
dc.contributor.authorZhu, LDen_HK
dc.date.accessioned2010-09-06T06:46:37Z-
dc.date.available2010-09-06T06:46:37Z-
dc.date.issued2010en_HK
dc.identifier.citationTectonophysics, 2010, v. 491 n. 1-4, p. 205-210en_HK
dc.identifier.issn0040-1951en_HK
dc.identifier.urihttp://hdl.handle.net/10722/72948-
dc.description.abstractThe 12 May 2008 the Sichuan earthquake was one of the worst natural disasters in China. Here, we present a detailed picture of the epicentral area inferred geophysical data. Based on the analysis of teleseismic data acquired by a dense seismic network, we highlight an abrupt 20. km Moho offset between the Sichuan Basin and the Tibetan plateau and a horizontal discontinuity at ~15 km depth, which may connect with the ruptured zone of the 2008 event. We obtain low mean crustal velocity ratios, which suggest the absence of a thick and extensive zone of partial melt within the crust beneath the eastern part of the Songpan-Garze Terrane. All our data support the idea that the Longmen Shan range mark a zone of active strain localization due to the rigid Yangtze craton resisting eastward displacement of the Tibetan Plateau. © 2009 Elsevier B.V.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/tectoen_HK
dc.relation.ispartofTectonophysicsen_HK
dc.rightsTectonophysics. Copyright © Elsevier BV.en_HK
dc.subjectCrustal structuresen_HK
dc.subjectGravity modellingen_HK
dc.subjectLongmen Shanen_HK
dc.subjectReceiver functionsen_HK
dc.titleCrustal structures in the area of the 2008 Sichuan earthquake from seismologic and gravimetric dataen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0040-1951&volume=&spage=&epage=&date=2009&atitle=Crustal+structures+in+the+area+of+the+2008+Sichuan+earthquake+from+seismologic+and+gravimetric+data+en_HK
dc.identifier.emailChan, LS:chanls@hku.hken_HK
dc.identifier.authorityChan, LS=rp00665en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.tecto.2009.11.010en_HK
dc.identifier.scopuseid_2-s2.0-77955426093en_HK
dc.identifier.hkuros170130en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77955426093&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume491en_HK
dc.identifier.issue1-4en_HK
dc.identifier.spage205en_HK
dc.identifier.epage210en_HK
dc.identifier.isiWOS:000281943600018-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridRobert, A=49061540300en_HK
dc.identifier.scopusauthoridZhu, J=7405687918en_HK
dc.identifier.scopusauthoridVergne, J=6603942702en_HK
dc.identifier.scopusauthoridCattin, R=6601984450en_HK
dc.identifier.scopusauthoridChan, LS=7403540528en_HK
dc.identifier.scopusauthoridWittlinger, G=6603881970en_HK
dc.identifier.scopusauthoridHerquel, G=6602611781en_HK
dc.identifier.scopusauthoridde Sigoyer, J=6507260279en_HK
dc.identifier.scopusauthoridPubellier, M=7003955053en_HK
dc.identifier.scopusauthoridZhu, LD=7404201072en_HK

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