[1]DONG Lei,LI Jianyou,JIANG Weisong,et al.Study of the Crustal Anisotropy beneath Chongqing and Its Surrounding Area[J].Journal of Seismological Research,2021,44(02):145-151.
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Study of the Crustal Anisotropy beneath Chongqing and Its Surrounding Area
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
44
Number of periods:
2021 02
Page number:
145-151
Column:
Public date:
2021-06-30
- Title:
- Study of the Crustal Anisotropy beneath Chongqing and Its Surrounding Area
- Keywords:
- receiver function; crustal anisotropy; Chongqing area
- CLC:
- P313.3
- DOI:
- -
- Abstract:
- In this paper,a receiver function is extracted from the teleseismic data recorded by the seismic network and earthquake stations in Chongqing and its surrounding areas,and a grid search is established by using the minimum variance of arrival time of Pms phase of the receiver function.Finally anisotropic parameters of the crust are obtained.The results indicate that the delay time of the crustal anisotropic in Chongqing and its surrounding areas is ranges within 0.14～0.91 s,with an average of 0.4 s; The fast wave mainly polarizes in NEE,NNW,and NWW directions,and the direction of the fast wave at most of the stations is obviously different from the direction of the main compressive stress in the study area.And in this area the anisotropy of the crust features transverse heterogeneity and zoning; the characteristics of lithospheric deformation are mainly derived from mantle anisotropy.
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Last Update:
2021-06-30