VARIATIONS OF THE APPARENT RESISTIVITY OF THE UPPER CRETACEOUS ROCK MASS IN THE CHIRKEY HPP DAM AREA UNDER VARIABLE LOAD OF THE WATER RESERVOIR
The article describes data changes in the level of the Chirkey reservoir and apparent resistivity of the rock mass near the hydroelectric dam. The analysis shows significant correlation ( R = -0.8) between seasonal changes in the reservoir water level and apparent resistivity of the rocks around. Increase of water level leads to decrease of apparent resistivity and vice versa. These data suggest that one of the possible mechanisms of such a link is the seasonal change in the reservoir weight, which causes deformation of the rocks in the area. Variable load under the reservoir weight is a destabilizing factor of the equilibrium state of the local crustal field in this area.