01028cam a22002891 4500 gs 53000331 DLC 20260227111401.0 780330s1953 dcua f000 0 eng gs 53000331 (OCoLC)3764344 DLC USlW OCoLC DLC QE75 .P9 no. 256 QE86.P5 S35 553.43 Schwartz, George M. (George Melvin), 1892- Geology of the San Manuel copper deposit, Arizona. Washington, U.S. Govt. Print. Off., 1953. iv, 65 p. illus., plates, maps (part col.) diagrs., tables. 29 cm. Geological Survey professional paper 256 Part of the illustrative material is folded, part in pocket. "References": p. 63. Geology Arizona Pinal County. Copper ores Arizona Pinal County. San Manuel copper deposit, Arizona. Geological Survey (U.S.). Professional paper ; 256. 28805 28805