Mineral resources of the Roberts Wilderness Study Area, Eureka County, Nevada

TL;DRAbstract

The Roberts Wilderness Study Area (NV-060-541) encompasses 15,090 acres and includes Roberts Creek Mountain, Cooper Peak, and Western Peak, three of the highest peaks in the Roberts Mountains, Eureka County, Nev. Field work for this report was carried out between May and August 1984 and augmented geologic mapping and other geologic studies that have continued for more than 20 years. Stream-sediment samples from the Kelley Creek drainage contain anomalous amounts of silver, lead, and zinc; the area including this drainage has low mineral resource potential for these metals in hydrothermal veins that follow faults and shear zones in carbonate host rock. The abandoned Kelley mine produced 397 tons of silver, lead, and zinc ore prior to 1940. Some rock samples from outcrops along the east edge of the study area contain anomalous amounts of gold and silver, as well as a suite of volatile elements including arsenic, antimony, and mercury that locally are indicators of precious-metal minerali

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