Schwartz, G.M., 1937, Oxidized copper ores of the United Verde Extension mine [abs.]: Economic Geology, v. 32, no. 8, p. 1070-1071.
Schwartz, G.M.
Economic Geology, v. 32, no. 8, p. 1070-1071.
Mineral District, Supergene Enrichment, Massive Sulfide, Mineralization, Copper, Proterozoic,
