Basis for focus area |
ARDF occurrences, prospective geology, geochemical anomalies. |
Identified resources |
None. |
Production |
None recorded. |
Status |
Unknown. |
Estimated resources |
None. |
Geologic maps |
No modern mapping better than 1:250,000 scale. |
Geophysical data |
Partly (50%) adequate aeromagnetic coverage (Porcupine survey), other parts inadequate; inadequate aeroradiometric coverage. |
Favorable rocks and structures |
Devonian and related evolved granitic rocks emplaced into continental margin successions including abundant carbonate. |
Deposits |
None. |
Evidence from mineral occurrences |
None. |
Geochemical evidence |
None. |
Geophysical evidence |
No data. |
Evidence from other sources |
High prospectivity determination based on Karl and others (2016). |
Comments |
This is a poorly mapped, geologic hole in the understanding of Alaska and contains a known peralkaline intrusive complex with REE-bearing minerals hosted in quartz veins and associated sparse placer workings suggesting upside prospectivity. |
Cover thickness and description |
Unknown. |
Authors |
Douglas C. Kreiner, James V. Jones III, Melanie B. Werdon. |
New data needs |
New mapping, geophysics, and updated geochemical sampling. |
Geologic mapping and modeling needs |
Mapping at 1:100,000 scale or better. |
Geophysical survey and modeling needs |
None. |
Digital elevation data needs |
IfSAR coverage is complete over entire focus area. |