ROLE OF ORE MAGMAS IN THE FORMATION OF DEPOSITS

Abstract

Notions are substantiated that for a certain group of so-called hydrothermal deposits, not regular lowconcentration hydrothermal solutions, including their more concentrated derivatives, colloids, are not of decisive importance in their formation, but highly concentrated magmatic systems – ore magmas forming deposits by intrusive way, at a time when hydrothermal (including gas-hydrothermal) solutions coexisting with them, being more mobile and chemically active, produce only metasomatic changes in the host rocks and wallrock dissemination, masking the magmatic nature of deposits.