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A wealth of quantitative data on the types, volume distribution, and mode of occurrence of the platinum-group minerals residing in the Merensky Reef, the UG-2 chromitite layer, and Platreef has been… (More)
In addition to what is usually termed "normal" Merensky reef, mining operations have revealed various other types of the Merensky reef, which are not only of geologic interest but also display… (More)
Studies of grains of recent alluvial platinoids from six localities indicate that they are predominantly alloys of the platinum-group elements, that they show both rounded and irregular outlines, and… (More)
The geology and structural setting of the recently discovered Shangani nickel deposit in Rhodesia is described. The mineralized Shangani Ultramafic Complex occurs in an assemblage of acid tuffs which… (More)