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Moho depth variations in the Taiwan orogen from joint inversion of seismic arrival time and Bouguer gravity data

文献类型：期刊论文

作者Li, Zhiwei1; Roecker, Steven2; Kim, Kwanghee3; Xu, Ya4; Hao, Tianyao4
刊名TECTONOPHYSICS
出版日期2014-09-29
卷号632页码:151-159
关键词Tomography Joint inversion Seismic arrival time Bouguer gravity anomaly Subduction Continental crust
ISSN号0040-1951
DOI10.1016/j.tecto.2014.06.009
文献子类Article
英文摘要The joint inversion of different geophysical datasets is an effective means to reduce the non-uniqueness and improve the reliability of geophysical inversion. In this study, seismic arrival time and Bouguer gravity datasets are jointly inverted to obtain an image of 3-D velocity structures in the Taiwan orogen. The model obtained from joint inversion fits the arrival time observations at least as well as when inverted individually, and the gravity observations are much better fit when included in the inversion, implying a reduction in ambiguity by simultaneously modeling the disparate datasets. Moho depth variations estimated by the 3-D P wave velocity model suggest a maximum Moho depth of 56 km located beneath the Backbone Central Range, and the trend of the Moho is largely consistent with the topography of the Central Range with eastward, asymmetric crustal thickening. The root beneath the Central Range appears to be smaller in lateral extent than previously imaged, and the velocity gradients into the uppermost mantle are significantly higher. The lack of evidence for a significant amount of Eurasian crust in the mantle supports geodynamical models of accreted, rather than consumed, continental crust in a collisional environment. (C) 2014 Elsevier B.V. All rights reserved.
WOS关键词RECEIVER FUNCTION-ANALYSIS ; ARC-CONTINENT COLLISION ; UPPER-MANTLE BENEATH ; VELOCITY STRUCTURE ; CRUSTAL STRUCTURE ; TRAVEL-TIME ; P-WAVE ; REGION ; LITHOSPHERE ; SUBDUCTION
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000343378500012
出版者ELSEVIER SCIENCE BV
资助机构NSF Grant(EAR-1010580) ; NSF Grant(EAR-1010580) ; KMA, Research Development Program(CATER 2014-5030) ; KMA, Research Development Program(CATER 2014-5030) ; (NSFC41210005) ; (NSFC41210005) ; (NSFC41304045) ; (NSFC41304045) ; (XDB06030203) ; (XDB06030203) ; (SKLGED2013-9-3-Z) ; (SKLGED2013-9-3-Z) ; NSF Grant(EAR-1010580) ; NSF Grant(EAR-1010580) ; KMA, Research Development Program(CATER 2014-5030) ; KMA, Research Development Program(CATER 2014-5030) ; (NSFC41210005) ; (NSFC41210005) ; (NSFC41304045) ; (NSFC41304045) ; (XDB06030203) ; (XDB06030203) ; (SKLGED2013-9-3-Z) ; (SKLGED2013-9-3-Z) ; NSF Grant(EAR-1010580) ; NSF Grant(EAR-1010580) ; KMA, Research Development Program(CATER 2014-5030) ; KMA, Research Development Program(CATER 2014-5030) ; (NSFC41210005) ; (NSFC41210005) ; (NSFC41304045) ; (NSFC41304045) ; (XDB06030203) ; (XDB06030203) ; (SKLGED2013-9-3-Z) ; (SKLGED2013-9-3-Z) ; NSF Grant(EAR-1010580) ; NSF Grant(EAR-1010580) ; KMA, Research Development Program(CATER 2014-5030) ; KMA, Research Development Program(CATER 2014-5030) ; (NSFC41210005) ; (NSFC41210005) ; (NSFC41304045) ; (NSFC41304045) ; (XDB06030203) ; (XDB06030203) ; (SKLGED2013-9-3-Z) ; (SKLGED2013-9-3-Z)
源URL[http://ir.iggcas.ac.cn/handle/132A11/84852]  
专题中国科学院地质与地球物理研究所
通讯作者Li, Zhiwei
作者单位1.Chinese Acad Sci, Inst Geodesy & Geophys, State Key Lab Geodesy & Earths Dynam, Wuhan 430077, Peoples R China
2.Rensselaer Polytech Inst, Dept Earth & Environm Sci, Troy, NY 12180 USA
3.Pusan Natl Univ, Dept Geol Sci, Pusan 609735, South Korea
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Oil & Gas Resources, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Li, Zhiwei,Roecker, Steven,Kim, Kwanghee,et al. Moho depth variations in the Taiwan orogen from joint inversion of seismic arrival time and Bouguer gravity data[J]. TECTONOPHYSICS,2014,632:151-159.
APA Li, Zhiwei,Roecker, Steven,Kim, Kwanghee,Xu, Ya,&Hao, Tianyao.(2014).Moho depth variations in the Taiwan orogen from joint inversion of seismic arrival time and Bouguer gravity data.TECTONOPHYSICS,632,151-159.
MLA Li, Zhiwei,et al."Moho depth variations in the Taiwan orogen from joint inversion of seismic arrival time and Bouguer gravity data".TECTONOPHYSICS 632(2014):151-159.

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来源：地质与地球物理研究所

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