Unnamed (in western Candle Hills)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Cu
Other commodities Ag
Ore minerals chalcopyrite
Gangue minerals epidote; quartz

Geographic location

Quadrangle map, 1:250,000-scale MG
Quadrangle map, 1:63,360-scale D-6
Latitude 62.867
Longitude -155.861
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is located at the rim of a prominent spur in the western Candle Hills about 3 kilometers due west of Candle placer mine (MG002) at an elevation of 1,000 feet (304 m) in the NW1/4 sec. 16, T. 32 N., R. 35 W., of the Seward Meridian. The reporter investigated the site in 1978 (as ADGGS station no. 78BT364).

Geologic setting

Geologic description

This occurrence consists of chalcopyrite blebs and disseminations in quartz-epidote veinlets hosted in a porphyritic, subaerial basalt radiometrically dated at 73 Ma (Bundtzen and Miller, 1997). The occurrence is limited to a small 5 meter by 6 meter outcrop surrounded by vegetation and talus. One grab sample contained 233 ppm copper and 0.9 grams/tonne silver (Bundtzen and Laird, 1983).
Geologic map unit (-155.863355323679, 62.8663692244751)
Mineral deposit model Polymetallic vein (Cox and Singer, 1986; model 22c).
Mineral deposit model number 22c
Age of mineralization Unknown; probably associated with 69-73Ma Candle volcanic-plutonic complex.
Alteration of deposit Epidote.

Production and reserves

Workings or exploration One grab sample contained 233 ppm copper and 0.9 grams/tonne silver (Bundtzen and Laird, 1983).
Indication of production None
Reserve estimates None.

Additional comments

Mineralization may be related to the Au-polymetallic prospect in the valley of Candle Creek (MG003).

References

MRDS Number 10307824

References

Bundtzen, T.K., and Miller, M.L., 1997, Precious metals associated with Late Cretaceous-early Tertiary igneous rocks of southwestern Alaska, in Goldfarb, R.J., and Miller, L.D., eds., Mineral Deposits of Alaska: Economic Geology Monograph 9, p. 242-286.
Reporters T.K. Bundtzen (Pacific Rim Geological Consulting)
Last report date 11/25/1998