The Klyuchevskoe Gold Ore Deposit (Eastern Transbaikalia): Formation Conditions and Petrogeochemical Features of Rocks and Ores

摘要

It was found that the magma chambers in the Amudzhikan complex (J(3)) were characterized by close degrees of their differentiation and occurred at depths corresponding to the lower continental crust. The formation of explosive breccias proceeded during each period of the ore-forming process. The magma chambers of early breccias occurred at great depths. The late breccias contain carbonate cement and are characterized by an increased REE content.