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Shear-wave splitting and anisotropy in crust of Dabieshan orogenic belt |
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| Authors: | Chunyong Wang Zhifeng Ding Xiebo Chen Guangying Chen Guiyin Li |
| Institution: | (1) Institute of Geophysics, State Seismological Bureau, 100081 Beijing, China;(2) Institute of Geodynamics, State Seismological Bureau, 100085 Beijing, China |
| Abstract: | The shear-wave splitting was analyzed on the deep seismic sounding profile crossing the Dabieshan area. The direction difference between Sg and SmS fast wave polarization indicates that the modem regional tectonic stress field in the Dabieshan area exists only in uppcr crust, while the crack alignment caused by the Triassic collision between the North China and the Yangtze blocks had been preserved in mid-lower curst. |
| Keywords: | Dabieshan orogenic belt deep seismic sounding profile shear-wave splitting anisotropy crack alignment |
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