References: |
- Deposit:: CONLEY, J.F., 1978, GEOLOGY OF THE PIEDMONT OF VIRGINIA-INTERPRETATIONS AND PROBLEMS, IN CONTRIBUTIONS TO VIRGINIA GEOLOGY-III: VIRGINIA DIVISION OF MINERAL RESOURCES PUBLICATION 7, P. 115-149.
- Deposit:: ESPENSHADE, G.H., RANKIN, D.W., SHAW, K.W., AND NEUMAN, R.B., 1975, GEOLOGIC MAP OF THE EAST HALF OF THE WINSTON-SALEM QUADRANGLE, NORTH CAROLINA-VIRGINIA: U.S. GEOLOGICAL SURVEY MISCELLANEOUS GEOLOGIC INVESTIGATIONS MAP I-709-B, 1 SHEET, SCALE 1:250,000.
- Deposit:: FONTAINE,W.M., 1883-84, NOTES ON THE GEOLOGY AND MINERAL RESOURCES OF THE FLOYD, VA., PLATEAU: THE VIRGINIAS, V. 4, P. 167, 178-180, 185-192; V. 5, P. 8-12.
- Deposit:: 1966 RECON D.W. RANKIN: RECON MAPPING (MAP I-709-B
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