Electrical structure and its application to the explanation of georesistivity observations at Jiangning geoeletric station

In order to probe the significant difference between the surface and deep well georesistivity observations, the electrical structure beneath Jiangning geoelectric station was detected, and a horizontally layered electrical structure model was proposed in this paper. Subsequently, we used the model to calculate the apparent resistivity for each configuration of surface and deep-well observation systems. Comparison of calculated georesistivities, with observed ones shows that the observations of the surface configurations with a long-distance current electrodes and those of deep-well configurations can be reasonably interpreted, that is to say, the difference between the surface and deep-well observations is reasonable, which is resulted from the different electrical structure beneath Jiangning station.