Abstract：The property and seismicity of Gaoqiao fault is analyzed by use of geologic and seismological method．The results show：1）The scale of Gaoqiao fault is large.It is a fault at the top of the earth’s crust.The new aitivity age was earlier period of the late Pleistocenc；2）The perineability structure of the fault is distributed conduit that is useful for infiltration of underground water.3)there are obvious seismic activity before and after impoundment of the Three Gorges Reservoir along Gaoqiao fault zone；4)After impoundment,the seismicity of Gaoqiao fault behaves as a energy releasing in the form of medium frequency and low intensity；5）Gaoqiao fault is a potential seismic risk region in this area and vicinity,where will occur tectonic reservoirinduced seismicity of Ms3.0-4.0.
Xia Jinwu ,Li Changan ,Zeng Xinping et al. STUDY ON CHARACTERISTICS AND SEISMIC ACTIVITY OF GAOQIAOFAULT IN HEAD AREA OF THREE GORGES RESERVOIR[J]. jgg, 2008, 28(2): 8-15.
