Scientific publications

The specific electrical characteristics of Precambrian rocks, exposed on the present erosion surface, are described. The material studied is standardized to compare data obtained by various technologies. The electrical characteristics of crustal matter were studied for three first-order geostructures that differ in old basement consolidation age. It has been shown that the background conductivity of the earth crust is characteristic of block structures and depends chiefly on the electrical resistance of rocks from a granite-granodiorite group. Anomalies in the electrical conductivity of the earth crust in Karelia are encountered in both block and linear structures, but they differ in the nature of conductivity. The electrical conductivity of linear structures is commonly connected with electron-conductive minerals, whereas in block structures we deal with electron and fluid conductivity.