黄沙坪铅锌矿床系碳酸盐岩石的裂隙充填和交代矿床。矿物呈中细粒不均匀嵌布,彼此共生密切。金属矿物主要是方铅矿、铁闪锌矿、黄铁矿、黄铜矿和黝锡矿等,脉石矿物主要为石英和方解石。原矿含硫、铅、锌分别为10～18%,1.8～3.5%、4.5～6.5%。根据实践经验,我们采用一段磨矿,选铅为主的等可浮流程。在铅锌分离系统中使用石灰和硫酸锌作为抑制剂。随着石灰用量的增加,铅精矿含硫 Fracture Filling and Metamorphic Deposits of the Carbonate Rocks in the. The minerals were unevenly embedded in fine grains and symbiotic with each other. Metallic minerals are mainly galena, marbl, pyrite, chalcopyrite and stannous tin, gangue minerals are mainly quartz and calcite. Raw ore containing sulfur, lead, zinc were 10 to 18%, 1.8 to 3.5%, 4.5 to 6.5%. According to practical experience, we use a section of grinding, lead-based wait for the float process. Lime and zinc sulfate are used as inhibitors in lead-zinc separation systems. With the increase in the amount of lime, lead concentrate sulfur