Unnamed Cu prospect 101-45, Amole District, Tucson Mts, Pima Co., Arizona, USA
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MRDS database Dep. ID file #10039745, MRDS ID #M050761.
A Cu occurrence/prospect with surface and underground workings located in sec. 28, T14S, R12E.
Mineralization is ore in a shear zone at the SE end of a fault zone extending N60W for 0.9 km, with low dip to the S. The ore zone is 900 meters long and 1 meter wide, striking N64W and dipping 30S. The host rock is arkose. Alteration includes argillitic; pyrite gossan, pyrite-chalcopyrite gossan. An associated rock unit is quartz monzonite.
The shear zone is bounded on the hangingwall side by a massive arkossic grit bed 1 meter thick, so the shearing may be parallel to the bedding. Debris includes massive black limonite and Cu silicate on fractures (also some disseminated). Some fragments show a network of veinlets of black limonite and Cu silicate (inferred Pyrite-chalcopyrite-gossan).
Workings include a tunnel. Some subsidiary pits in the vicinity.
2 entries listed.
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