K-Ar isotopic ages of sulfide from ore suggest that the model age of deposit formation is 339.1 Ma,near to the Carboniferous stratum age,implying the start of sedimentary exhalative mineralization.

• 矿床硫化物K-Ar同位素年龄显示；矿床的模式年龄有2个年龄段:斑点状闪锌矿与结核状闪锌矿的模式年龄分别为387.；2；444