Abstract：We investigate the spatial location of Guojiazhuang fault in Linfen basin and study its activity characteristics by shallow seismic exploration, composite drilling section exploration and trenching. The results show that there are great differences in the disclosure of fault information by different detection methods. The shallow seismic exploration can obtain ideal results when detecting faults with certain fault throw and certain physical property differences in the strata, and the detection effect varies with different working parameters. The composite drilling section exploration can improve the resolution of faults with small fault throw, but the faults with small fault throw and thin identification layer may be missed due to the subjective recognition of terrain and strata. The trenching can effectively identify the small fault throw of surface faults, but it is affected by construction depth and construction conditions. The combination of three methods can accurately determine the spatial location and activity characteristics of faults.
ZENG Jinyan,LI Zihong,CHEN Wen et al. Detection Effects of Different Exploration Methods on Buried Faults with Small Fault Throw[J]. jgg, 2024, 44(3): 310-315.
