Short, M.N., 1923, Deep-level chalcocite at Superior, Arizona, and at Butte, Montana: Cambridge, Mass., Harvard University, Ph.D. dissertation, 174 p. Authors Short, M.N. Publication Date 1923 Citation Cambridge, Mass., Harvard University, Ph.D. dissertation, 174 p. State AZ Province BR County PN Placenames Superior area Keywords Mineral District Porphyry Copper Mineralization Supergene Enrichment More Keywords Mineral District, Porphyry Copper, Mineralization, Supergene Enrichment, AzGeoBib RefNum 9288