Ore zoning and dynamics of ore-forming processes of yinshan polymetallic deposit in dexing, jiangxi

摘要

the Yinshan deposit, one of the large-scale Cu-Pb-Zn-Au-Ag polymetallic de- poits, may be named a middle-low temperature subvolcanic hydrothermal deposit and referred to an the "transitional deposit" linking mineralization of the epithermal and porphyry copper types. In this paper, the characteristics and structures of ore zoning are briefly described. On the basis of the dynamics of ore-forming processes and applying computer numerical simulation technique, the mechanism of ore zoning is discussed and a concealed igneous body controlling ore deposition at depth of the Yinshan mine is predicted.