Рarametric Phenomena in Seismoelectrics

Abstract

Parametric phenomena (amplification of vibrations and the appearance of combinational frequencies) emerging in rocks during seismoelectric transformations are studied experimentally under field conditions. The geological medium in which periodic seismic vibrations are excited attains the properties of the parametric electrical oscillation system. Under certain conditions, there is a possibility of emergence of parametric resonance owing to transformation of elastic energy to energy of alternating electrical field produced in the solid earth. It was also proven experimentally that the electrical response to elastic vibrations can appear not only as a result of seismoelectric effects of the second type, but also due to the existence of parametric seismoelectric effects of the first type.