Let us consider the system of sign characteristics of the wave field as applied to the prediction of lithologic composition of bottom sediments by the acoustic method, based on the mechanism of interaction of elastic waves at the interface and the features of their propagation in the sediment.
Seismoacoustic methods are often used in geophysical investigations in water areas to study the structure and composition of bottom sediments, with the interpretation stage usually analyzing information representing the response of the studied medium to the probing acoustic pulse.
Division of bottom sediments by granulometric composition into boulder, pebble, sandy-gravel, sandy, clay and muddy, determination of belonging of the identified sediments to a certain lithologic type on the basis of the results of acoustic studies performed during the mapping of bottom sediments in the water area, is reduced to solving the problem of restoring the totality of properties of the object by its reaction to the external impact (acoustic radiation) ...
Separation of bottom sediments into separate lithological types by means of seismoacoustic methods of research belongs to the class of problems of recognition of distant objects in water and consists in determination of geometric and physical and mechanical characteristics of bottom sediments on the basis of identification and measurement of determining changes arising in the echo-signal as a result of interaction of the probing acoustic impulse with the studied sediments ...
One of the factors controlling the location of bauxite deposits in the Wind Belt (eastern slope of the Baltic Crystalline Shield) is the presence of depressions in the relief of the crystalline basement rocks. The study of the relief of the crystalline basement in some cases can be carried out successfully by the VES method ...
Interpretation of materials obtained by mapping of bottom sediments, tracing of acoustic boundaries by means of sounding methods at water depths exceeding the depth of section illumination and by an order of magnitude exceeding the width of the sounding wave packet, does not cause special difficulties ...
In recent years to solve a variety of geological and engineering-geological problems in the water areas of seas and reservoirs attract sounding and seismic methods of exploration. They are mainly used to solve structural problems, but with the help of sound waves can be determined by the nature of reflected signals in some varieties of bottom sediments. ...
