Unnamed (northeast of Talkeetna River)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Cu
Ore minerals chalcopyrite; pyrrhotite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale TK
Quadrangle map, 1:63,360-scale B-4
Latitude 62.4731
Longitude -148.5668
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at an elevation of about 4,200 feet, approximately 1 3/4 miles northeast of the Talkeetna River and 4 miles downstream from Yellowjacket Creek. The occurrence is near the center of sec. 32, T. 28 N., R. 5 E., Seward Meridian. The location accurate to within 1/4 mile. This is locality 49 of Csejtey and Miller (1978).

Geologic setting

Geologic description

At this occurrence, a few percent of pyrrhotite and chalcopyrite are in northeast- striking quartz veins and replacement zones in greenstone. The zones are 0.5 to 2.0 feet thick and dip steeply to the southeast (Rose, 1967).
Geologic map unit (-148.569015089293, 62.4726196852766)
Mineral deposit model Basaltic Cu? (Cox and Singer, 1986; model 23?)
Mineral deposit model number 23?

Production and reserves

Indication of production None

References

MRDS Number A012178

References

Reporters R.K. Rogers (U. S. Geological Survey contractor)
Last report date 10/1/2002