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Northern Pper Mine Limpopo

International journal of coal geology, 13 1989 375-390 375 elsevier science publishers b.V., amsterdam -- printed in the netherlands the coalification of south african coal c.P.Snyman1 and j.Barclay2 1department of geology, university of pretoria, 0083, hiucrest, pretoria, south africa 2technikon northern transvaal, soshanguve, south africa received march 7, 1988 revised and.

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