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南非采金工业自开始以来,一直是繁重体力劳动操作。七十年代初,金矿雇用了40多万黑人。金矿发现于维特沃特斯兰地区,它是一个很大的沉积盆地,约300公里长,150公里宽,6公里厚。几个含金矿脉穿过维特沃特斯兰系,有些矿脉仅几厘米厚,其余一些矿脉为几米厚。南非的黄金约50％是从薄于30厘米的矿脉中开采出来的,约40％是从30厘米到1米厚的矿脉中开采出来的,其余10％是在大于1米厚的矿脉中开采出来的。南非整个金矿回采工作面综合起来的长度约500公里,每个工作日可开采约8万米~2。有一个矿山,回采工作面的总长度约1万米,
South African gold mining industry has been a heavy physical labor operation since its inception. In the early seventies, the gold mine employed more than 400,000 blacks. The gold mine is found in the Wittelstein region, which is a large sedimentary basin about 300 kilometers long, 150 kilometers wide and 6 kilometers thick. Several gold-bearing ore veins pass through the Wittelsland line, with some veins only a few centimeters thick and the remaining veins a few meters thick. Approximately 50% of South Africa’s gold is mined from veins thinner than 30 cm and about 40% is mined from 30 cm to 1 m thick veins and the remaining 10% is mined in veins larger than 1 m from. South Africa, the entire gold mining face combined length of about 500 kilometers, each working day can be mined about 80,000 meters ~ 2. There is a mine with a total working face length of about 10,000 meters,