[1]PAN Yuhang,CHENG Jianwu,BAO Ziwen,et al.Seismic Anisotropy in the Crust in Qilian Mountains-Liupan Mountains Seismic Belt[J].Journal of Seismological Research,2017,40(01):122-128.
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Seismic Anisotropy in the Crust in Qilian Mountains-Liupan Mountains Seismic Belt
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
40
Number of periods:
2017 01
Page number:
122-128
Column:
Public date:
2017-03-20
- Title:
- Seismic Anisotropy in the Crust in Qilian Mountains-Liupan Mountains Seismic Belt
- CLC:
- P315.3
- DOI:
- -
- Abstract:
- In this study,the polarization of fast shear waves and time delay of low shear-wave beneath the 21 stations in this area were computed using shear-wave Splitting Analysis Method(SAM)based on the seismic data during January 2010 to December 2015,recorded by the Gansu Regional Digital Seismic Network.Meanwhile,we also analysed and discussed the spatial distribution of the crust anisotropy characteristics in Qilian Mountains-Liupan Mountains seismic belt.Due to the impact of the regional principal compressive stress and local geological structure,the spatial distribution of polarization of the fast shear-wave shows partly complicated and localized characteristics.The second predominant polarization direction of fast shear-wave is consistent with strike direction of fault in local area,which indicates discreteness and differences about anisotropy.However,the principle polarization direction,which is near NE direction,is obvious in Qilian Mountains-Liupan Mountains seismic belt.
- References:
- -
- Similar References:
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Last Update:
2017-03-20