Abstract:Based on systematically sampling and rock-mineral identification, the variation law of Cu-S minerals is studied in detail. It is found that covellite morphology changed from fine needle and cotton fiber shape to plate column shape from shallow to deep depth of this deposit. At the same time, the Cu-S mineral assemblages changed from dominant in digenite to dominant in covellite. The former indicates that the copper ore body is the genesis of primary hydrothermal metallization, and the latter indicates that the oxygen fugacity and sulfur fugacity are both higher in the deep depth of this deposit than in the shallow depth. Therefore, it can be inferred that there is prospecting potential of porphyry deposit below this deposit.