Reference | {Deposit:: FURCRON, A.S, 1935, JAMES RIVER IRON AND MARBLE BELT, VIRGINIA, VIRGINIA GEOLOGICAL SURVEY BULLETIN 39, 124P. (PL.13, P.87, 89).}{Deposit:: ESPENSHADE, G.H., 1954, GEOLOGY AND MINERAL DEPOSITS OF THE JAMES RIVER-ROANOKE RIVER MANGANESE DISTRICT; VIRGINIA U.S. GEOLOGICAL SURVEY BULLETIN 1008, 155P. (PL.2, P.141).} |