The Pechenga-Allarechensk nickel structural zone of the Kola Peninsula is one of the few ore districts of the USSR, where ore seismic survey by the reflected wave method (RWM) for solving structural problems began to be applied for the first time and has been systematically carried out for a long time.....

The solution of the important question of the accuracy of constructing seismic boundaries not only in the Pechenga, but also in other ore areasis complicated by the complex character of the recorded wave fields and the change of velocity sections across the area, which is explained by the strong dislocation of folded structures composed of different complexes of high-velocity crystalline and metamorphosed rocks.

Seismic studies within the Pechenga structure are carried out by the reflected-wave method along systems of longitudinal profiles combined with areal observations. The seismic profiles are oriented, as a rule, across the prevailing strike of the rocks.

Seismic data obtained during detailed studies in the Pechenga district of the Murmansk region are characterized by the presence of a large number of short coherent axes, from which subsequently reflecting elements are constructed by the apparent-velocity method. ...