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Oliver claims, Copper Mountain District (Clifton-Morenci District), Shannon Mts, Greenlee Co., Arizona, USA

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A former surface and undergrond Mn mine located in the SW¼ sec. 4, T3S, R29E, 11 miles NNW of Clifton, 1.9 miles NE of Granville Recreation Area, on National Forest land. The location is approximate, claims are in the SW¼ of sec. 4. Discovered in 1955 by Ben Billingsley. Former operators included Mr. Charles H. Jonas, Mr. Ben Billingsley, and Mr. Roy Wilson.

Mineralization is ore in lenses and irregular masses hosted in Modoc Limestone and Morenci Shale. The ore zone is 213.36 meters long, 7.62 meters wide, strikes N45E and dips NW. Ore concentration was mineralization along faults and in fracture zones with some replacement of limestone. The limestone beds trend about N30E and dip 20NW. Surface oxidation exists to unknown depths. Ore control was NE-trending, steeply dipping faults cutting limestone beds. The ore occurs within a fault zone in erratically distributed lenses and irregular masses.

The best ore was found in the NE half of the deposit where the mineralized areas ranged from 2 to 6 feet in width and from a few feet to tens of feet in length.

Area structures include limestone beds that occupy the eastern end of a comparitively narrow belt of Carboniferous rocks that extends westward for seeral miles. Narrow belts of Carboniferous limestone surrounded by Tertiary volcanic flows.

Tectonic component is the transition between the Basin and Range and Colorado Plateau Provinces.

Workings total 213.36 meters in length and 4.57 meters deep and consist of shallow adit, bulldozer stripping and trenching.

Mineral List



2 entries listed. 1 valid mineral.

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Farnham, L.L., Stewart, L.A., and Delong, C.W. (1961), Manganese Deposits of Eastern Arizona, US Bureau of Mines Information Circular 7990: 97.

Bennett (1975) Geology and Origin of the Breccias in the Morenci-Metcalf District, Greenlee County, Arizona, MS thesis, University of Arizona, 153 pp.

U.S. Bureau of Mines files - Oliver group of claims.

MRDS database Dep. ID #10027003, MRDS ID #M001690; and Dep. ID #10235053, MAS ID #0040110024.

 
Mineral and/or Locality  
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