|Quadrangle map, 1:250,000-scale||CR|
|Quadrangle map, 1:63,360-scale||A-1|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The Frisco prospect is southeast of Kitkun Bay at an elevation of about 1,000 feet. It is about 0.8 mile north-northwest of hill 2221 and about 0.3 mile east-southeast of the center of section 27, T. 77 S., R. 88 E.|
Geologic descriptionAs described by Wright and Wright (1908), the Frisco prospect was originally part of the Tomboy group of claims (CR181) that was subsequently restaked. The deposit is a quartz vein 12 feet wide that strikes north. The vein contains pyrite and fragments of the chlorite schist and marble host rocks. The vein assayed only a few dollars in gold. A 30-foot vein nearby was too lean to mine. The rocks in the area are part of the Wales Group of Late Proterozoic and Cambrian age (Eberlein and others, 1983; Brew, 1996).
|Geologic map unit||(-132.129653313174, 55.1629044752912)|
|Mineral deposit model||Low sulfide, gold-quartz vein (Cox and Singer, 1986; model 36a).|
|Mineral deposit model number||36a|
|Age of mineralization||Younger than the Late Proterozoic or Cambrian host rocks.|
|Workings or exploration||None noted.|
|Indication of production||None|
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.
Eberlein, G.D., Churkin, Michael, Jr., Carter, Claire, Berg, H.C., and Ovenshine, A. T., 1983, Geology of the Craig quadrangle, Alaska: U.S. Geological Survey Open-File Report 83-91, 52 p.
|Reporters||D.J. Grybeck (Applied Geology)|
|Last report date||5/1/2004|