|Quadrangle map, 1:250,000-scale||CR|
|Quadrangle map, 1:63,360-scale||B-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The only description of this prospect is by Brooks (1902), who located it 'about 100 yards west of the lower end of McKenzie Inlet.' For this record, it is about 0.5 mile northeast of the center of section 32, T. 75 S., R. 86 E.|
Geologic descriptionThe only published description of this prospect is by Brooks (1902). He describes it as a tunnel in chloritic schist that exposes a 3-foot-wide zone with chalcopyrite. The rocks in the area are greenstone, schist , phyllite, and minor marble of the Wales Group of Late Proterozoic and Cambrian age (Eberlein and others, 1983; Brew, 1996).
|Geologic map unit||(-132.368400859982, 55.3279399393961)|
|Mineral deposit model||Insufficient information.|
|Age of mineralization||Unknown, other than that the prospect is in Late Proterozoic or Cambrian host rocks.|
|Workings or exploration||A short tunnel was driven before 1902.|
|Indication of production||None|
|MRDS Number||A010059; A010079|
Brew, D.A., 1996, Geologic map of the Craig, Dixon Entrance, and parts of the Ketchikan and Prince Rupert quadrangles, southeastern Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-2319, 53 p., 1 sheet, scale 1:250,000.
Brooks, A.H., 1902, Preliminary report on the Ketchikan mining district, Alaska, with an introductory sketch of the geology of southeastern Alaska: U.S. Geological Survey Professional Paper 1, 120 p.
Cobb, E. H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Craig quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-869, 262 p.
|Reporters||D.J. Grybeck (Applied Geology)|
|Last report date||5/1/2004|