Том: 5 , Год издания: 2006

Some examples of nonlinear effects that were found during various seismic experiments are observed. Peculiarities typical of nonlinear processes appeared in the form of seismic signals in these experiments. For example, pumping-over of energy from the zone of dominating carrying frequencies to the zone of low and high frequencies. For theoretical description of occurring effects the five-constant model of isotopic quadratic-nonlinear medium is used. In the context of this model a new way of evaluation of aq-parameter of elastic nonlinear medium is suggested.