THE PROCESSES OF CATACLASIS, MYLONITIZATION AND POST-TECTONIC MINERALIZATION (BLASTESIS) RELATED TO THE OVERTHRUSTING OF THE MACERA NAPPE (THE GREATER CAUCASUS)

The article deals with the geological processes revealed during the overthrusting of the Macera nappe from the Pass sub-zone on the infrastructure of the Elbrus sub-zone of the Greater Caucasus structural zone. It is shown that in the contact zone of the Macera nappe and infra­struc­tu­re, there is a significant difference in the degree of their regional metamorphism; the intensively de­ve­loped cataclase, mylonitization and blastesis processes associated with shea­ring are charac­te­ri­zed; it is shown that the energy of the thermal effect of friction is insi­gni­fi­cant in auto­ch­thonous rocks, while it is higher in allochthonous rocks. Significant recrys­tal­li­zation of mine­­rals in the auto­ch­thon is observed only in its direct contact with the allochthon.