| Reference | {Deposit:: GUILD, P.W., 1981, PRELIMINARY METALLOGENIC MAP OF NORTH AMERICA: U.S. GEOLOGICAL SURVEY CIRCULAR 858.}{Deposit:: TRASK, P.D. AND RODRIGUEZ C., J. JR., 1948, MANGANESE DEPOSITS OF MEXICO: U.S.G.S. BULLETIN 954-F, P. 278-248, 293-295, TABLE 17.}{Production:: TRASK AND RODRIGUEZ, 1948.} |