Alteration

Thomas, B.E., 1949, Geology and ore deposits of the Wallapai district, Mohave County, Arizona: Pasadena, California Institute of Technology, Ph.D. dissertation, 187 p.

Sturdevant, J.A., 1976, Structural studies of the Big Bug Pluton, Yavapai County, Arizona: Implications for fracture control in the prophyry copper environment, in Woodward, L.A., and Northrop, S.A., eds., Tectonics and mineral resources of southwestern North America: New Mexico Geological Society Special Publication 6, p. 167-173.

Sturdevant, J.A., 1976, Structural studies of the Big Bug Pluton, Yavapai County, Arizona, implications for fracture control in the porphyry copper environment [abs.]: Geological Society of America Abstracts with Programs, v. 8, no. 5, p. 637-638.

Sturdevant, J.A., 1975, Relationships between fracturing, hydrothermal zoning, and copper mineralization at the Big Bug pluton, Big Bug mining district, Yavapai County, Arizona: University Park, Pennsylvania State University, Ph.D. dissertation.

Stewart, C.A., 1913, The geology and ore-deposits of the Silverbell mining-district, Arizona: American Institute of Mining Engineers, Transactions, v. 43, p. 240-290.

Stewart, C.A., 1912, Geology and ore deposits of the Silverbell mining district, Arizona: New York, Columbia University, Ph.D. dissertation.

Spirakis, C.S., and Condit, C.D., 1975, Preliminary report on the use of LANDSAT-1 (ERTS-1) reflectance data in locating alteration zones associated with uranium mineralization near Cameron, Arizona: U.S. Geological Survey Open-File Report 75-0416, 20 p.

Spatz, D.M., 1974, Geology and alteration-mineralization zoning of the Pine Flat porphyry copper occurrence, Yavapai County, Arizona: Tucson, University of Arizona, M.S. thesis, 148 p.

Smith, V.L., 1975, Hypogene alteration at the Esperanza Mine, Pima County, Arizona: Tucson, University of Arizona, M.S. thesis, 161 p.

Simmons, W.W., and Fowells, J.E., 1966, Geology of the Copper Cities mine, in Titley, S.R., and Hicks, C.L., eds., Geology of the porphyry copper deposits, southwestern North America: Tucson, University of Arizona Press, p. 151-156.