| Reference | {Deposit:: GUILD, PHILIP W., 1981, PRELIMINARY METALLOGENIC MAP OF NORTH AMERICA: LISTING OF DEPOSITS: U.S. GEOLOGICAL SURVEY, GEOLOGICAL SURVEY CIRCULAR 858-B, 72 P..}{Deposit:: TRASK, P.D. AND RODRIGUEZ C., J. JR., 1948, MANGANESE DEPOSITS OF MEXICO: U.S.G.S. BULLETIN 954-F, P. 273-276, 308-309, TABLE 17.}{Production:: TRASK AND RODRIGUEZ, 1948.} |