In the investigation and evaluation of geothermal resources in Kaifeng depression, the authors employed

magnetotelluric sounding method and, through an analysis of data obtained from 50 measuring points along two

profiles, performed inverse processing of the profiles according to effective apparent resistivity data. On such a

basis, the conditions of fault structures in this area were found out in terms of their electrical character,

important geological boundaries were recognized, the basement undulation and water richness of the strata were

investigated, and the limits of geothermal anomaly in this area were delineated.