Features of ore-metasomatic zonation of ore area Freedom of Malmyzh gold-copper porphyry deposit

Abstract

Present the ore-metasomatic zonation of the Freedom area, one of the ore centers of the Malmyzh Au-Cu porphyry deposit. The central part of ore-mineralization zones composes of quartz-sericite and biotite-K-feldspar metasomatites which carry relatively rich gold-copper. Flank zones are composed mainly of phyllic and propylites. These zones are characterized by increase content of lead, manganese and zinc. A positive correlation was found in two groups of elements: Mo–Cu–Au and Pb–Zn–Mn. Based on the analysis of the vertical change in the contents of ore components and their relationships, presumably, modern erosional level takes upper-ore position.