| Basis for focus area |
Permissive geology, substantial ARDF occurrences with porphyry copper characteristics. |
| Identified resources |
Identified resources of copper and molybdenum. |
| Production |
None recorded. |
| Status |
Past exploration. |
| Estimated resources |
Nunatak: 145 Mt at 0.02% Cu and 0.05% MoS2; Bruce Hills: 20 Mt at 0.08% Cu and 0.05% MoS2. |
| Geologic maps |
Little to no modern mapping at better than 1:250,000 scale. |
| Geophysical data |
Inadequate aeromagnetic and aeroradiometric coverage. |
| Favorable rocks and structures |
Calc-alkaline, biotite granite to monzonites, granodiorite arc rocks. |
| Deposits |
Nunatak, Bruce Hills. |
| Evidence from mineral occurrences |
ARDF occurrences including the larger Quartz Hill, Burroughs Bay, Margarie, Nunatak, Bruce Hills occurrences. |
| Geochemical evidence |
Cu, Mo, Pb, Zn anomalies in rock chips and streambed sediments. |
| Geophysical evidence |
No data. |
| Evidence from other sources |
Favorable calc-alkaline felsic to intermediate arc rocks with locally reactive host rocks. |
| 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. |
