TY - RPRT TI - Analyses and descriptions of some rock samples, Virgilina district and vicinity, North Carolina and Virginia AU - Frank Gardner Lesure AU - E. L. Mosier AU - K. C. Watts AU - J. G. Frisken PY - 1992 DO - 10.3133/ofr92314 UR - https://pubs.usgs.gov/publication/ofr92314 ID - ofr92314 ER -