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Crustal structure in the middle-southern segments of the Tanlu Fault Zone and adjacent regions constrained by multifrequency receiver function and surface wave data
Wei, Zigen1; Chu, Risheng1; Chen, Ling2,3,4; Wu, Shanshan5
2020-04-01
Source PublicationPHYSICS OF THE EARTH AND PLANETARY INTERIORS
ISSN0031-9201
Volume301Pages:13
AbstractWe successively adopt H-k stacking of receiver functions (RFs) and joint inversion of RF and surface wave dispersion with Gaussian factors of 1.0, 2.0 and 3.0 to invert the crustal thickness (H), average Vp/Vs ratio (k) and S-wave velocity beneath 146 broadband seismic stations in the middle-southern segments of the Tanlu Fault Zone (TLFZ) and adjacent regions. These observations, together with previous geologic and geophysical studies, are further used to investigate Phanerozoic tectonic evolution in the study region and the seismogenic environment of the Tancheng Ms 8.5 earthquake. Our results show that the Moho depth and k generally range from 25 to 38 km and 1.65-1.95, respectively. The study region is roughly divided into three parts with different crustal structures from north to south, based on the Cretaceous Tiefogou fault and Triassic Lu'an fault and their extensional profiles, which may reflect different responses to the westward subduction of the Paleo-Pacific and Pacific Plates in the Mesozoic-Cenozoic. In addition to the observed uplifted Moho, high k and vertically alternating high-/low-velocity layers, lateral variations in S-wave velocity and junctions of multiple faults are imaged beneath the Tancheng earthquake zone, which may also contribute to the occurrence of strong earthquakes.
KeywordTanlu Fault Zone Joint inversion of receiver function and surface wave dispersion Tancheng Ms 8.5 earthquake N-S regional differences Vertically alternating high and low-velocity layers
DOI10.1016/j.pepi.2020.106470
Funding OrganizationDREAM project of the National Key R&D Program of China ; DREAM project of the National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; DREAM project of the National Key R&D Program of China ; DREAM project of the National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; DREAM project of the National Key R&D Program of China ; DREAM project of the National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; DREAM project of the National Key R&D Program of China ; DREAM project of the National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS KeywordH-KAPPA STACKING ; MOHO DEPTH ; VELOCITY STRUCTURE ; POISSONS RATIO ; BENEATH ; CHINA ; DEFORMATION ; ANISOTROPY ; EVOLUTION ; COLLISION
Language英语
Funding ProjectDREAM project of the National Key R&D Program of China[2016YFC0600402] ; National Natural Science Foundation of China[41604056]
Funding OrganizationDREAM project of the National Key R&D Program of China ; DREAM project of the National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; DREAM project of the National Key R&D Program of China ; DREAM project of the National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; DREAM project of the National Key R&D Program of China ; DREAM project of the National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; DREAM project of the National Key R&D Program of China ; DREAM project of the National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000526831300006
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95575
Collection岩石圈演化国家重点实验室
Corresponding AuthorChu, Risheng
Affiliation1.Chinese Acad Sci, Innovat Acad Precis Measurement Sci & Technol, State Key Lab Geodesy & Earths Dynam, Wuhan 430077, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
5.Shanghai Earthquake Agcy, Shanghai 200062, Peoples R China
Recommended Citation
GB/T 7714
Wei, Zigen,Chu, Risheng,Chen, Ling,et al. Crustal structure in the middle-southern segments of the Tanlu Fault Zone and adjacent regions constrained by multifrequency receiver function and surface wave data[J]. PHYSICS OF THE EARTH AND PLANETARY INTERIORS,2020,301:13.
APA Wei, Zigen,Chu, Risheng,Chen, Ling,&Wu, Shanshan.(2020).Crustal structure in the middle-southern segments of the Tanlu Fault Zone and adjacent regions constrained by multifrequency receiver function and surface wave data.PHYSICS OF THE EARTH AND PLANETARY INTERIORS,301,13.
MLA Wei, Zigen,et al."Crustal structure in the middle-southern segments of the Tanlu Fault Zone and adjacent regions constrained by multifrequency receiver function and surface wave data".PHYSICS OF THE EARTH AND PLANETARY INTERIORS 301(2020):13.
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