Eastern Blue Ridge graphite deposits

Region East, Southeast
Mineral systems
Deposit types
Other minerals

Information leading to the delineation of this focus area

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.