Latitude: 33°21'34"N
Longitude: 110°52'5"W
A group of Cu-Mn-Fe-U claims with surface and underground workings located in the NW¼ sec. 7, T1S, R14E, about 3¾ miles SW of Little Acres, 1 mile south of the northeast corner of the Pinal Quadrangle and 4 miles S of Miami, on National Forest land. Relocated in 1953 on an abandoned copper prospect. Owned by Robert J. Boyle (1/3 owner) and Chas. and I. M. Shackelford (2/3 owners). Operated by the Thornburg Uranium Co. (1953).
Mineralization is a vein deposit hosted in the Precambrian Pinal Schist and the Solitude Granite as narrow quartz veins. The ore zone is 91.44 meters long and 1.52 meters wide, striking N45W and dipping 65NE. A quartz vein has many minute fractures partially sealed with copper oxides and radioactive minerals. Alteration is granite oxidized and altered near the quartz veins. Radioactivity: background 20 cps, max 300 cps.
Area structures include numerous faults striking approximately E-W and dipping steeply north, others strike NW and dip NE.
References
U.S. Atomic Energy Commission Report 172-480 (1953), Gila County Preliminary Reconnaissance Report: 33.
Weathers (1954), U.S. Atomic Energy Commission RME-2016.
Peterson, N.P. (1962), Geology and ore deposits of the Globe-Miami District, Arizona, USGS PP 342: 76.
U.S. Atomic Energy Commission RME-156 (1970).
USGS Pinal Ranch Quadrangle map.
MRDS database Dep. ID #10095785, MRDS ID #M800289; and Dep. ID #10258247, MAS ID #0040070451.
Mineral List
6 entries listed. 5 valid minerals.
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