| Basis for focus area |
The focus area encompasses the Mount Hope resource. A 15 km buffer was applied to cover possible undiscovered occurrences in adjacent areas. Potentially significant inventories of W and Sn, potentially recoverable during Mo processing(?). |
| Identified resources |
Identified molybdenum resource; historical production of copper, gold, lead, silver, and zinc. |
| Production |
Total production valued at $1,335,393 as of 1964, with values primarily in Pb, and Zn, with lesser Cu, Au, and Ag. |
| Status |
Past mining. |
| Estimated resources |
Proven and Probable Reserve: 985 Mt at 0.07% MoS2; Measured and Indicated resource: 65 Mt at 0.033% MoS2 (Huss and others, 2014). |
| Geologic maps |
Matson (1946), scale 1:2,640. |
| Geophysical data |
Inadequate aeromagnetic and aeroradiometric coverage. |
| Favorable rocks and structures |
Mt. Hope rhyolite dome; Garden Valley Limestone. |
| Deposits |
Mount Hope mine (MRDS dep_id: 10044732). |
| Evidence from mineral occurrences |
MRDS; Ludington and Plumlee (2009). |
| Geochemical evidence |
Zinc Pb, Cu, and Ag produced (1941-1947) from replacement deposits in Paleozoic limestone adjacent to Mo-mineralized Mt. Hope rhyolitic intrusions. |
| Geophysical evidence |
Unknown. |
| Evidence from other sources |
No data. |
| Comments |
Ore occurs as replacement deposits in limestone roof pendants. Very little public geochemical data exist for the Mount Hope deposit. Enrichment of essentially all critical mineral commodities listed here (except for Zn) is inferred from the mineral system/deposit type table (Hofstra and Kreiner, 2020) and requires further testing. Possible Mo resource, and REE, Re, W, and Sn are potential byproducts. Polymetallic replacement mineralization would have Cu, Zn, and Ag, with Ga, Ge, Bi, As, Sb as potential byproducts. |
| Cover thickness and description |
Unknown. |
| Authors |
Peter G. Vikre, Ryan D. Taylor, Albert H. Hofstra, Joshua M. Rosera. |
| New data needs |
Geophysics. |
| Geologic mapping and modeling needs |
None requested at this time. |
| Geophysical survey and modeling needs |
High-resolution, Rank 1 aeromagnetic and radiometric surveys. |
| Digital elevation data needs |
Lidar inadequate. |
