The processes of rocks hardening and its manifestation in magnetic and magnetoacoustic characteristics (Denezhkin Kamen massif)

摘要

The results of the three-dimensional interpretation of profile curves of the magnetic fields are presented. The Denezhkin Kamen massif is represented by agglomerates of blocks with different magnetic characteristics (magnetic susceptibility, remanent magnetization, magnetoacoustic emission). They consist of three general blocks: dunite, pyroxenite and gabbro. We find the most acceptable solution by changing the parameters of the magnetic model. The most interesting results were obtained in the separation of the magnetic field of ultramafic massif Denezhkin Kamen (Polar Urals). For example, in the rock layers of variable inclination dunite block is selected, the magnetization direction of which changes from subhorizontal in the top to the vertical in the lower Earth's crust. Analysis of the spatial distribution of the magnetization vector of dunite suggests that the entire western block of rocks has been deformed in the evolution process from the horizontal to subve rtical occurrence. The dynamic model of hardening of rock massifs is presented. We have shown that as a result of deformation of the three-layer inhomogeneous model dislocations are developing, which lead to the hardening of rock and are manifested in anomalous magnetoacoustic emission.