|Quadrangle map, 1:250,000-scale||TK|
|Quadrangle map, 1:63,360-scale||D-4|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is at an elevation of about 3,400 feet on a northwest-flowing tributary to upper Portage Creek. It is approximately 0.9 mile east-northeast of hill 4285 and about 0.6 mile southwest of the center of sec. 32, T. 22 S., R. 7 W., Fairbanks Meridian. The location is accurate to within 1/4 mile.|
Geologic descriptionThis occurrence consists of pyrite and chalcopyrite in Cretaceous or Jurassic slate near a granite contact, and of small quartz veins in argillite (Miller and others, 1978; J. Schmidt, written communication, 2001). U.S. Geological Survey samples of the quartz veins contain 0.8 part per million gold and 100 parts per million bismuth (Miller and others, 1978). Sulfide-bearing slate samples contain 244 parts per million copper and 2.26 percent titanium (J. Schmidt, written communication, 2001).
|Geologic map unit||(-148.944758176804, 62.9599269997131)|
|Workings or exploration||Only surface sampling by U.S. Geological Survey (J. Schmidt, written communication, 2001).|
|Indication of production||None|
Csejtey, Bela, Jr., Nelson, W.H., Jones, D.L., Silberling, N.J., Dean, R.M., Morris, M.S., Lanphere, M.A., Smith, J.G., and Silberman, M.L, 1978, Reconnaissance geologic map and geochronology, Talkeetna Mountains quadrangle, northern part of Anchorage quadrangle, and southwest part of Healy quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-558-A, 60 p., 1 sheet, scale 1:250,000.
|Reporters||R.K. Rogers (U. S. Geological Survey contractor)|
|Last report date||10/4/2002|