Unnamed (on upper Granite Creek)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Cu
Ore minerals chalcopyrite

Geographic location

Quadrangle map, 1:250,000-scale TK
Quadrangle map, 1:63,360-scale B-2
Latitude 62.2979
Longitude -147.9524
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at an elevation of about 5,100 feet on the west, valley wall of upper Granite Creek. It is 0.1 mile southwest of the center of sec. 34, T. 26 N., R. 8 E., Seward Meridian. The location is accurate to within 1/2 mile.

Geologic setting

Geologic description

Clautice and others (1990) describe this occurrence as 'chalcopyrite-bearing volcanic [rock] of Talkeetna Formation, in scree below 30x60 stain near felsite.' A sample of chalcopyrite-bearing rock contains more than 1.0 percent copper. This occurrence may be genetically related to TK097 and TK099.
Geologic map unit (-147.95459128635, 62.2974252768678)
Mineral deposit model Polymetallic vein or Porphyry Cu-Au? (Cox and Singer, 1986; model 22c or 20c?)
Mineral deposit model number 22c or 20c?
Alteration of deposit Copper staining.

Production and reserves

Workings or exploration A chalcopyrite-bearing sample of volcanic rocks of the Talkeetna Formation contain more than 1.0 percent copper (Clautice and others, 1990).
Indication of production None

References