Reference | {Deposit:: TRASK, P.D. AND RODRIGUEZ C., J. JR., 1948, MANGANESE DEPOSITS OF MEXICO: U.S.G.S. BULLETIN 954-F, P. 293-295, TABLE 17.}{Deposit:: SOCIEDAD GEOLOGICA MEXICANA A.C., 1985, PLANO GEOLOGICO MINERO DE CHIHUAHUA, MEXICO: CONSEJO DE RECURSOS MINERALES AND FEDERAL GOVERNMENT OF MEXICO, MEXICO D.F., 1 SHEET, SCALE 1:500,000.} |