Abstract Using GPS, borehole strain and digital seismic data, we study the horizontal deformation and tectonic stress fields in the Chongqing area. The results show that the inside of the Chongqing region presents relative motion of 0~3 mm/a and presents certain features of the dextral. The region as a whole performs as pressure characteristic. The predominant principal compressive strain direction of the local region is in a NWW direction, the direction of the tectonic stress field direction is consistent, the direction of the part of the region near the impact fracture appears to be a NNE direction, and the maximum shear strain contour line is southwest of Chongqing. Northeast and southeast Chongqing show a high gradient zone, and the gradient belt corresponds to the Chongqing area of the main area of seismic activity.
CHEN Tao,ZHANG Rui,HUANG Shiyuan. Study on Deformation Field and Tectonic Stress Field in the Chongqing Area of the Three Gorges[J]. jgg, 2018, 38(2): 129-131.
CHEN Tao,ZHANG Rui,HUANG Shiyuan. Study on Deformation Field and Tectonic Stress Field in the Chongqing Area of the Three Gorges[J]. jgg, 2018, 38(2): 129-131.
