| Basis for focus area |
Permissive geology, substantial ARDF occurrences with porphyry copper characteristics. |
| Identified resources |
Identified resources of copper. |
| Production |
None recorded. |
| Status |
Current and past exploration. |
| Estimated resources |
Round Top 200 Mt at 0.35% Cu and 100 Mt at 0.5% Cu. |
| Geologic maps |
No modern mapping better than 1:250,000 scale. |
| Geophysical data |
Inadequate aeromagnetic and aeroradiometric coverage. |
| Favorable rocks and structures |
Granodiorite to monzonite porphyry. |
| Deposits |
None. |
| Evidence from mineral occurrences |
Multiple porphyry-related ARDF occurrences including Round Top, Purcell Mountain, Orion, Yanert, and Costello Creek. |
| Geochemical evidence |
Mo, Cu, Au, Ag, Pb, Zn. |
| Geophysical evidence |
No data. |
| Evidence from other sources |
Isolated occurrences scattered across the central to western interior suggests local preservation of arc magmatic event. |
| Cover thickness and description |
Unknown. |
| Authors |
Douglas C. Kreiner, James V. Jones III, Melanie B. Werdon. |
| New data needs |
New mapping, geophysics, updated geochemical sampling. |
| Geologic mapping and modeling needs |
Mapping at 1:100,000 scale or better. |
| Geophysical survey and modeling needs |
Aeromagnetics and radiometrics collected at Rank 2. |
| Digital elevation data needs |
IfSAR coverage is complete over entire focus area. |
