SUMMARY
The paper presents methodology of field works and . results of seismic surveys .carried out in areas under simple conditions of wave induction. Seismocraphs recorded numerous reflexes, some of which were accepted as guIde reflexes on account· of their dy-namics' and continuity of occurrence; However, esti-mation of reliability of the reflexes, and partIcularly of ,deeper reflexes appeared difficult in analog data
processing. That ds why 8 part of the seismic data were analysed by the use of computer MINSK-22.
The electronic data processing analysis carried out on the basis of theoretical computations and results recorded on time sections showed a fairly large num-ber of repeated reflexes below the guide boundary
CaI.
Repeated reflexes make real horizons difficult to trace.PE3IOME.
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