Reference | {Deposit:: SHEPARD, C.U., 1847, NATIVE PLATINUM IN NORTH CAROLINA: AMERICAN JOURNAL OF SCIENCE, 2D SER., V. 4, P. 280-281.}{Deposit:: KEMP, J.F., 1902, THE GEOLOGIC RELATIONS AND DISTRIBUTION OF PLATINUM AND ASSOCIATED METALS: U.S. GEOLOGICAL SURVEY, BULLETIN 193, P. 59.} |