The Relationship Of Gold And Silver Mineralization To Alkalic Porphyry And Breccia, Golden Reward Mine, Lawrence County, South Dakota
Karl M. Emanuel, Joseph J. Wagner, Nuri Uzunlar, 1990. "The Relationship Of Gold And Silver Mineralization To Alkalic Porphyry And Breccia, Golden Reward Mine, Lawrence County, South Dakota", Metallogeny of Gold in the Black Hills, South Dakota, Colin J. Paterson, Alvis L. Lisenbee, Tommy B. Thompson
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The Golden Reward mine is a bulk minable precious metal deposit that has recently been reactivated and is currently within its first full year of production since the early 1900's. The deposit is located within the Ruby Basin mining district of the northern Black Hills region, 4 km southwest of Lead, South Dakota (Fig. 1), The geology has been previously described by Irving (1904) as a high-grade sediment-hosted gold deposit characterized by fracture significant disseminated mineralization that is associated with silicification or conversion of the host into hornfels adjacent to intrusive lithologies.