|Quadrangle map, 1:250,000-scale||SK|
|Quadrangle map, 1:63,360-scale||B-4|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is at an elevation of about 1,400 feet approximately 1.6 miles, S71E from the Pleasant Camp border station on the Alaska-British Columbia border. It is in the SE1/4, section 13, T. 28 S., R. 53 E. of the Copper River Meridian. It is defined by sample localities 18 to 21 on figure 2 of Still and others (1984) and sample localities 15, 17 and 18 on figure 5 of Still and others (1987).|
This occurrence is defined by several anomalous samples reported by Still and others (1984, 1987). These two reports contain essentially the same data for this area. Metasediments and gossan are noted in the sample descriptions for those grab samples that contained the highest gold values, 0.066 to 0.316 ppm gold. Two sample descriptions are 'felsite with pyrite' and one of these contained 0.013 ppm gold. Another sample was described as 'calcite vein with pyrrhotite' and contained 330 ppm copper. One stream sediment sample contained 0.581 ppm gold.Bedrock in the area is marble, metasediments and metavolcanics of the Cheetdeekahyu Group of Redman and others (1985). The probable Devonian or Triassic age of these rocks (Gilbert and others, 1987) establishes a maximum age for the mineralization.
|Geologic map unit||(-136.321858558324, 59.4396731213944)|
|Mineral deposit model||Too little information to assign a model type.|
|Age of mineralization||No older than the probable Devonian or Triassic age of the host rocks (Gilbert and others, 1987).|
|Indication of production||None|
Gilbert, W.G., Burns, L.E., Redman, E.C., and Forbes, R.B., 1987, Preliminary bedrock geology and geochemistry of the Skagway B-3 quadrangle, Alaska: Alaska Division of Geological and Geophysical Surveys Report of Investigations 87-2, 2 sheets, scale 1:36,200.
MacKevett, E.M., Jr., Robertson, E.C., and Winkler, G.R., 1974, Geology of the Skagway B-3 and B-4 quadrangles, southern Alaska: U.S. Geological Survey Professional Paper 832, 33 p., 1 plate.
Redman, E.C., Gilbert, W.G., Jones, B.K., Rosenkrans, D.S., and Hickok, B.D., 1985, Preliminary bedrock-geologic map of the Skagway B-4 quadrangle: Alaska Division of Geological and Geophysical Surveys Report of Investigations 85-6, 1 sheet, scale 1:40,000.
Still, J.C., Gilbert, W.G., and Forbes, R.B., 1987, Final report of stream sediment, float, and bedrock sampling in the Porcupine mining area, southeast Alaska, 1983-1985: U.S. Bureau of Mines Open-File Report 36-87, 35 p., 8 sheets.
|Reporters||T.C. Crafford (T. Crafford & Associates, Anchorage)|
|Last report date||2/4/2001|