Abstract:In order to study the location and the spatial distribution of buried faults and the crustal shallow structure in the eastern part of Wuzhong area in Ningxia, we lay several high resolution shallow seismic reflection lines where the Chongxing fault may exist. The results show that the Chongxing fault is a NNE-trending normal fault. The interpretation of shallow reflection seismic sections shows that the fault extends about 12 km in length and has a steeper, nearly upright, dip angle. The breakpoint FP1 on the southern WJQ line reveals that the Quaternary bottom interface TQ is broken by the Chongxing fault, while the breakpoint FP5 on the northern SJDD line and the breakpoint FP6 on the WJZ line reveal that the fault intrudes upwards to the Quaternary internal interface T02, which seems to reflect that the fault activity is relatively strong in the northern section and relatively weak in the southern section.
LI Qian,TAN Yali,JI Jifa et al. Research on Detailed Structure of Chongxing Fault in Wuzhong Area: Based on Reflection Seismic Data[J]. jgg, 2019, 39(3): 236-240.