| Reference | {Deposit:: CARPENTER, III,P ARNOLD, 1976, NC DEPT OF NAT AND ECON}{Deposit:: RESOURCES BULL 84, P. 34.}{Deposit:: BRYSON, HERMAN J, 1936, NC DEPT OF CONS & DEVEL BULL 38, P 9}{Deposit:: PARDEE, J T & PARK JR., C F 1948 / USGS PROF PAPER 2138 P. 6} |