| Basis for focus area |
Historically productive fluorite districts located along the western rim of Mogollon mountains. Western boundary defined by major basin-bounding fault. Fluorite mineralization often replaces and cuts dacite and rhyolite dikes that post-date major late Eocene-Oligocene volcanic eruptions. Focus area drawn to include Mogollon, Wilcox, and Gila districts. Shape of focus area broadly follows extensional faults and associated dikes. |
| Identified resources |
Historical production of tellurium in the Wilcox district. |
| Production |
Lone Pine mine (Wilcox district) produced 5 tons of Te from Au-Te epithermal veins (McLemore, 2016). |
| Status |
Past mining and current exploration in Mogollon district for Au and Ag. |
| Estimated resources |
Unknown. |
| Geologic maps |
Ratte (1977, 1981), scale 1;24,000; Ratte and others (2006), scale 1:24,000; Ratte and others (1979), scale 1:200,000. |
| Geophysical data |
Inadequate Rank 4 aeromagnetic and Rank 5 aeroradiometric coverage. |
| Favorable rocks and structures |
Faults and splays associated with basin and range extension along the west/southwest margin of the Mogollon mountains. Mineralization spatially associated with rhyolite dikes that are younger than main phases of magmatism in the Mogollon-Datil volcanic field, but their genetic association is unclear. |
| Deposits |
Lone Pine mine (MRDS dep_id: 10174446). |
| Evidence from mineral occurrences |
MRDS; New Mexico Mines Database (McLemore and others, 2005). |
| Geochemical evidence |
Primary mineralization consists of pyrite, fluorite, native tellurium, molybdenite and gold-tellurides. A vertical zonation is apparent with pyrite stratigraphically lowest, grading into a pyrite-tellurium assemblage, followed by a fluorite-rich zone at the highest elevations. Gold-tellurides are found with gold, silver, pyrite, and fluorite in fracture-filling veins in rhyolite at Lone Pine, with reported assays as much as 5,000 ppm Te (McLemore, 2016). |
| Geophysical evidence |
Unknown. |
| Evidence from other sources |
Unknown. |
| Comments |
Some of the Mogollon district is located in a Wilderness area. |
| Cover thickness and description |
Potential for buried or eroded deposits in fault-bounded basin. |
| Authors |
Joshua M. Rosera, Virginia T. McLemore, Jane M. Hammarstrom. |
| New data needs |
Geophysics, geologic mapping. |
| Geologic mapping and modeling needs |
Canteen Canyon and Canyon Hill 1:24,000 scale quadrangles. Rice Ranch quad, need detailed 1:12000 mapping in specific areas. |
| Geophysical survey and modeling needs |
High resolution aeromagnetic and aeroradiometric coverage. |
| Digital elevation data needs |
Lidar complete. |
