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前言澳大利亚的元古代的主要贱金属矿床(布罗肯希尔、芒特艾萨、麦克阿瑟河矿床)都是根据地表露头发现的。布罗肯希尔矿床是1883年发现的,其地表露头长大于一公里,宽3—40米的富锰铁帽,铁帽中的少量矿物有白铅矿,银的卤化物,磷氯铅矿和少量方铅矿,锌几乎全都淋失了。芒特艾萨矿床是1923年首次发现。含铅—银矿体的直接围岩为黄铁矿化页岩。在地表氧化后成为厚达3米的碧玉或硅化页岩角砾岩,从氧化带开采出的主要矿物为白铅矿和磷氯铅矿,氧化带厚约60米。1947年又在芒特艾萨北20公里的希尔顿区根据出露的铁
Preface The primary metamorphosed basement metal deposits in Australia (Broken Hill, Mount Isa, MacArthur Deposit) are all based on the surface outcrops. The Broken Hill Deposit, discovered in 1883, has a manganese-rich iron cap that grows more than one kilometer above the surface and 3-40 meters wide and contains a small amount of white lead, silver halide, Mine and a small amount of galena, zinc almost all lost. The Mount Isa deposit was first discovered in 1923. The immediate surrounding rock of lead-silver ore bodies is pyrite shale. After the surface oxidation into a 3-meter-thick jasper or silicified shale breccia, the main minerals from the oxidation zone for the production of lead and phosphorous lead ore, oxidation zone with a thickness of about 60 meters. In 1947, again in the Hilton District of Mount Isa 20 kilometers north of the district according to the exposed iron