| 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 fluorite and manganese in Mogollon, Wilcox, and Gila districts. |
| Production |
Clum: ~ 23,000 tons of 52 to 70% CaF2 produced; Gold Spar mine: ~ 850 tons; Rainbow: ~ 250 tons; Wilcox district: 10,603 tons fluorite and 87 long tons Mn; Gila district: 47,586 tons fluorite. |
| Status |
Past mining and current exploration in Mogollon district for Au and Ag. |
| Estimated resources |
Huckleberry Mine: 38,000 metric tons of 30% CaF2 Indicated + 45,000 tons probable (McAnulty, 1978); Gold Spar mine vein sample: 64% CaF2, 5.1% MnO. |
| 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 |
Mogollon, Wilcox, Gila districts: Blue Rock (MRDS dep_id: 10013008), Gold Spar (MRDS dep_id: 10013281), Huckleberry (MRDS dep_id: 10013491), Sacaton (MRDS dep_id: 10097846), Rainbow (MRDS dep_id: 10101825). |
| Evidence from mineral occurrences |
MRDS; New Mexico Mines Database (McLemore and others, 2005). |
| Geochemical evidence |
Few occurrences of anomalously high Mo, Sn, Ag, and Au in streambed sediments (Ratte and others, 1979). |
| Geophysical evidence |
Unknown. |
| Evidence from other sources |
New Mexico Mining and Minerals Division mine permits. |
| 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. |
| 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. |
