Anomalous concentrations of several metals in iron-formation of the Blue Lead Mountain area, Pennington County, South Dakota

Raymond, William H.; King, Robert Ugstad; Norton, James Jennings

Abstract:

Geochemical sampling of bedrock has revealed anomalous copper, silver, molybdenum, gold, arsenic, mercury, zinc, and cobalt in meta-iron-formation in the Blue Lead Mountain area 5 miles (8 kilometres) north-northwest of Keystone, S. Dak. The anomalies are in complexly folded and faulted iron-formation. Metal content decreases sharply in the surrounding rocks. The extent and intensity of the anomalous areas, despite evidence that previous mining had little success, are sufficient to make this area an interesting target for exploration.

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USGS Numbered Series

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3533

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Raymond, William H.; King, Robert Ugstad; Norton, James Jennings

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ENGLISH

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iii, 14 p. :maps ;26 cm.

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U.S. Geological Survey,

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Circular

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CIR

Citation Series Number:

707

Citation Search Results Text:

Anomalous concentrations of several metals in iron-formation of the Blue Lead Mountain area, Pennington County, South Dakota; 1975; CIR; 707; Raymond, William H.; King, Robert Ugstad; Norton, James Jennings