INVESTIGATION OF DEFORMATION AND HIGH FREQUENCY GEOACOUSTIC PROCESS IN SEDIMENTARY AT KARIMSHINA STATION

  1. Institute of Cosmophysical Research and Radio Wave Propagation FEB RAS

Investigation of sedimentary deformations is determined by their significant role in many geophysical pro-
cesses which are considered in seismology, oceanology, mining and so on. Many natural phenomena in sedimen-
tary are the result of its low strength and high plasticity, which are determined by external factors. In mediums
with similar properties favorable conditions are formed, where even weak deformation changes occur. This
changes entail clearly registered acoustic signals, that is why it is perspective to allocate detection systems in
such mediums and to investigate earthquake precursors the appearance of which is determined by sedimentary
properties.
In the paper the results of joint researches of deformation and high frequency geoacoustic process in sed-
imentary at Karimshina station are considered. Deformation measurements were carried out by unequal-arm
laser deformograph-interferometer. Geoacoustic emission is registered by directed acoustic receivers oriented
vertically downward and located around the measuring arm of the deformograph in artificial pools.