Investigation and Study of Fracture Water in Lower Triassic Sandstone
The thick sandstone of the Liujiagou Formation in the Lower Triassic is one of the main water-bearing bedrock layers in Shanxi Province.But like any bedrock aquifer,the prerequisite for forming a water storage space is geological tectonic activity.The controllable source audio magnetotelluric method(CSAMT)in geophysics was used to investigate the electrical resistivity characteristics of the complete bedrock without water.Based on this,the fault structure zone was identified,and its characteristics were analyzed using electrical resistivity and phase parameters.The water richness of the fault zone was analyzed using the three parameter characteristics of the induced polarization method.Under the premise of consistent anomalies in various geophysical parameters,the development well location was successfully determined.lt has reference significance for groundwater survey and research in similar areas.
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