|Quadrangle map, 1:250,000-scale||TK|
|Quadrangle map, 1:63,360-scale||B-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The Old Gold prospect is at an elevation of about 5,600 feet, about 3 miles south-southwest of Black Lake and 0.5 mile southwest of peak 6025. It is in the NE1/4 sec. 10, T. 26 N., R. 8 E., Seward Meridian. The location is accurate to within one mile.|
Geologic descriptionThe rocks in the vicinity of the Old Gold prospect are Jurassic granodiorite (Csejtey and others, 1978). Two claims were staked in 1978. The prospect consists of iron-stained and clay-altered, quartz diorite exposed in a saddle near the top of a ridge (Kurtak and others, 1992). Nine grab samples collected by the U.S. Bureau of Mines contain up to 90 parts per billion gold and 0.5 part per million silver (Kurtak and others, 1992).
|Geologic map unit||(-147.942793029824, 62.3619289646106)|
|Mineral deposit model||Porphyry Cu-Au? (Cox and Singer, 1986; model 20c?)|
|Mineral deposit model number||20c?|
|Alteration of deposit||Quartz diorite is clay-altered and iron-stained.|
|Workings or exploration||Two claims were staked in 1978. Nine grab samples collected by the U.S. Bureau of Mines (Kurtak and others, 1992).|
|Indication of production||None|
Additional commentsMAS/MILS number 20760080.
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||10/3/2002|