The Yinshan deposit, one of the large-scale Cu-Pb-Zn-An-Ag polytnetallic deposits, may be named a middle-low temperature subvolcanic hydrothermal deposit and referredto as the "transitional deposit" linking mineralization of the epithermal and porphyry coppertypes. In this paper, the characteristics and structures of ore zoning are briefly described. Onthe basis of the dynamics of ore-forming processes and applying computer numerical simulationtechnique, the mechanism of ore zoning is discussed and a concealed igneous body controllingore deposition at depth of the Yinshan mine is predicted.
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