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basal reef
(South Africa) A gold-bearing reef regarded as the principal carrier of gold in the Orange Free State. It has been associated with the Elsburg series of the central Witwatersrand and occurs below what has become known as the leader reef.
- 词性: noun
- 行业/领域: 采矿
- 类别 一般矿业; Mineral mining
- Government Agency: USBM
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创建者
- ed.young
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(Milwaukee, United States)