Target: Caldera margin-hosted low sulfidation epithermal mineralization along the northwest projection of the central Nevada rift.
Status: Available for Joint Venture
Location: The McDO property is located 200 km (63 miles) southwest of Jordan Valley in Malheur County, Oregon and approximately 16 kilometers (5 miles) northwest of McDermitt, Nevada.
History: The McDO property covers the historic Bretz Mine which produced 15,000 flasks of Hg from 1931 to 1968. Gold exploration was carried out on the project by multiple groups including Franco-Nevada, Placer Dome, Cordex, and Newmont. Most of the exploration efforts focused on the ring fractures of the caldera and feeders vertically below the historic Hg production.
Geology: The McDo project targets low sulfidation epithermal mineralization associated with a series of felsic intrusions which occur in the hangingwall of the McDermitt Caldera. Historic work has mostly focused on the ring fracture zone where extensive silicification of moat sediments with Hg mineralization has been drilled for potential buried gold mineralization. These programs may not have evaluated the potential for a hydrothermal system driven by intrusive activity outboard of the Caldera. Hydrothermal alteration in the form of silicification and kaolinite-alunite steam heated alteration has been chased outboard of the caldera along structures. These structures are prospective upwelling zones for hydrothermal fluids which may have deposited gold at depth.