| Basis for focus area |
Focus area encompasses some of the minor lithostratigraphic occurrences of flake graphite in the eastern Blue Ridge, Ashe and Alligator Back Metamorphic Suites. Includes McIntyre graphite prospect in Virginia. |
| Identified resources |
None. |
| Production |
None. |
| Status |
Unknown. |
| Estimated resources |
Unknown. |
| Geologic maps |
Horton and others (2017), scale 1:500,000. |
| Geophysical data |
Inadequate aeromagnetic and aeroradiometric data: aeromagnetic data Rank 4; aeroradiometric Rank 5. |
| Favorable rocks and structures |
Ashe Metamorphic Suite and Pegmatite; graphitic phyllite in Alligator Back Metamorphic Suite; graphitic phyllites in lower Lynchburg Group; possible remobilization in shear zones. |
| Deposits |
North Carolina: Dillinger mine and mill (MRDS dep_id: 10297817); Virginia: Naylor-Bruce prospect (MRDS dep_id: 10096556), MacIntyre graphite prospect. |
| Evidence from mineral occurrences |
MRDS. |
| Geochemical evidence |
Favorable mineralogy and rock type; presence of graphite. |
| Geophysical evidence |
Unknown. |
| Evidence from other sources |
Unknown. |
| Comments |
Naylor-Bruce deposit in Virginia hosted in shear zone within Blue Ridge basement granitoid gneiss. |
| Cover thickness and description |
Exposed at the surface. |
| Authors |
Arthur J. Merschat, William L. Lassetter, Gregory J. Walsh. |
| New data needs |
Geologic mapping, geophysics, and geochemistry. |
| Geologic mapping and modeling needs |
Geologic mapping and geochemistry Mapping around old mines/prospects and along-strike mapping. |
| Geophysical survey and modeling needs |
High resolution aeromagnetic and aeroradiometric coverage to help understand framework geology. |
| Digital elevation data needs |
Lidar adequate. |
