Survey of Guoxia-Silaotou fault

Guoxia-silaotuo fault is a part of Longxian-Baoji fault zone. In previous studies, people only inferred the spatial distribution of the fault from the indirect evidences of geomorphology and geophysics. In this paper, through the detailed investigation of the fault, the outcrop of the fault plane is found; the trenching method is used to investigate the fault, and the activity scale of the fault is revealed. It is found that in the late Pleistocene, the activity intensity of the fault is relatively high.