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霍恩脱拉斯克矿(Horntrask Mine)自1947年以地球物理勘测方法测出其异常以来,直到1980年才采用金刚石钻机探清矿体并计算出矿量。从1981年开始开拓,到1982年投产,第一年采矿3万吨,现在已达到年产矿石约10万吨。 该矿的矿体由角砾岩型锌银矿和铜矿组成,分为东、西两矿带。西矿带由两条平行的锌矿脉组成;东矿带由铜锌矿脉组成,矿脉倾角大约为30°。已开拓出矿量26.5万吨,其中锌矿21.5万吨,铜矿5万吨。矿石品位见表1。
Since 1947, the Horntrask Mine measured its anomalies by means of geophysical surveys, it was not until 1980 that diamond burners were used to explore and calculate ore bodies. From 1981 to open up until 1982, put into operation, the first year mining 30,000 tons, and now has reached an annual output of about 100,000 tons of ore. The mine’s ore body is composed of breccia-type zinc-silver ore and copper ore, divided into east and west two ore belts. The western ore zone is composed of two parallel zinc ore veins; the eastern ore belt is composed of copper-zinc veins with a camber angle of approximately 30 °. Has opened up 265,000 tons of ore, of which 215,000 tons of zinc, copper 50,000 tons. Table 1 shows the grade of ore.