Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1977. Soft cover. 18 pages with map, sections, photographs, photomicrographs, tables and refernces. Bound in original gray stiff paper covers printed in black. A near fine copy. More
Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1977. Soft cover. A discussion of the southernmost known circum-Pacific copper deposit, which has affinities to the prophyry copper class but has no present economic potential. 36 pages with maps, graphs, and tables, and references. Bound in original tan stiff paper covers..... More
Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1977. Soft cover. A discussion of the southernmost known circum-Pacific copper deposit, which has affinities to the prophyry copper class but has no present economic potential. 36 pages with maps, graphs, and tables, and references. Bound in original tan stiff paper covers..... More
Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1964. Soft cover. 50 pages with maps, tables and references, plus the two folded plates in the rear pocket. Bound in gray stiff paper covers printed in black with mild fade along the spine. A near fine copy. More
