Base and precious metal deposits in the Zuni Mountains, Cibola County, New Mexico
Virginia T. McLemore
Three principal types of deposits containing base and precious metals occur in the Zuni Mountains: (1) veins in Proterozoic rocks, (2) stratabound, sedimentary-copper deposits l ± silver. uranium) in Pennsylvanian(?)- Permian sedimentary rocks and (3) fluorite veins with minor base and precious metals in Proterozoic and Pennylsvanian(?)-Permian rocks. Total known metal production from these deposits amounts to over 30,000 pounds of copper, 260 oz of silver and 2 oz of gold, although minor production from the late 1800's was not reported and is not included in the totals. No base or precious metals have been produced from the fluorite veins, but approximately 224,000 tons of fluorite ore were produced from 1937 to 1953. At present there is no mining activity of metals in the Zuni Mountains, although a number of mining claims are still active. Production in the near future is unlikely because of discontinuity, small size and low grade. However, the area has some speculative potential for veins in Proterozoic rocks and small stratabound, sedimentary copper deposits.
- McLemore, Virginia T., 1989, Base and precious metal deposits in the Zuni Mountains, Cibola County, New Mexico, in: Southeastern Colorado Plateau, Anderson, Orin J.; Lucas, Spencer G.; Love, David W.; Cather, Steven M., New Mexico Geological Society, Guidebook, 40th Field Conference, pp. 317-319.