Relation of Some Metal Mning Districts in the Western United States to Regional Tectonic Environments and Igneous Activity; Bulletin 69
Reno, NV: Mackay School of Mines, 1967. softcover, 11.5" x 8.5", 35 pages, illustrated, library stamp title page. from the abstract, "By compring a metallization map with geologic and tectonic maps, emphasis is given to the close correspondence of western United States mining districts containing gold, silver, copper, lead, and..... More