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Alice Prospect, Nichols Bay, Prince of Wales Island, Ketchikan District, Prince of Wales-Outer Ketchikan Borough, Alaska, USA
Latitude: 54°42'59"N
Longitude: 132°6'32"W
Longitude: 132°6'32"W
Geology: Little has been written about the Alice prospect since it was first briefly described by Chapin (1918) as chalcopyrite in irregular masses and veinlets in limestone associated with greenstone. Two shafts were filled with water in 1918. Recent mapping by Gehrels indicates that the rocks in the area are Silurian or Ordovician quartz monzonite and syenite. There is no indication of greenstone or limestone in the vicinity on his map. Gehrels names the fault that strikes through or near the likely position of this prospect as the 'Alice Claims Fault'. Maas and others (1991) collected several samples in open cuts that may be the Alice prospect. The samples consisted of silicified syenite and quartz veins with (unidentified) sulfides and contained less than 5 to 172 parts per billion gold, less than 0.1 to 8.4 parts per million (ppm) silver; 132 to 1,400 ppm copper, 5 to 9,813 ppm lead, and 28 to 3,213 ppm zinc.
Workings: Two old shafts were filled with water in 1916 (Chapin, 1918); Maas and others (1991) sampled several open cuts at or near this site.
Age: Indeterminate.
Commodities (Major) - Cu
Development Status: None
Deposit Model: Masses of chalcopyrite in limestone and greenstone after Chapin (1918); quartz v
Mineral List
| Chalcopyrite |
1 entry listed. 1 valid mineral.
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References
Chapin, Theodore, 1918, Mining developments in the Ketchikan and Wrangell mining districts: U.S. Geological Survey Bulletin 662-B, p. 63-75. Cobb, E. H., 1972, Metallic mineral resources of the Dixon Entrance quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-434, 1 sheet, scale 1:250,000. Cobb, E. H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Dixon Entrance quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-863, 34 p. Gehrels, G. E., 1992, Geologic map of southern Prince of Wales Island, southeastern Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map I-2169, 23 p., 1 sheet, scale 1:63,360. Maas, K. M., Still, J. C., Clough, A. H., and Oliver, L. K., 1991, Mineral investigations in the Ketchikan mining district, Alaska, 1990: Southern Prince of Wales Island and vicinity--Preliminary sample location maps and descriptions: U.S. Bureau of Mines Open-File Report 33-91, 139 p.
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