Unnamed (on Mineral Creek)

Prospect, Inactive

Commodities and mineralogy

Main commodities Cu
Other commodities Ag; Au
Ore minerals chalcocite; chalcopyrite; pyrite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale MC
Quadrangle map, 1:63,360-scale D-8
Latitude 61.7534
Longitude -143.9004
Nearby scientific data Find additional scientific data near this location
Location and accuracy This prospect is on Mineral Creek, a small south tributary to the upper Kluvesna River. It is at an elevation of about 3,500 feet in the NE1/4 of section 26, T. 1 S., R. 8 E. of the Copper River Meridian. This is locality 179 of MacKevett (1976); the location is accurate to within 1,000 feet. Cobb and MacKevett (1980) included this prospect under the name 'Mineral Cr.'.

Geologic setting

Geologic description

In this area, many quartz veins up to 4 feet thick contain pyrite, chalcopyrite, and minor chalcocite (Moffit and Mertie, 1923; MacKevett, 1976). The veins are commonly less than 2 feet thick, are localized along faults showing post-vein displacement, and cut both Permian argillite and upper Jurassic granitic rocks. Assays show up to 3 ounces of both gold and silver per ton (Moffit and Mertie, 1923). The area was explored with several short adits and drifts.
Geologic map unit (-143.902495263473, 61.7529398719838)
Mineral deposit model Polymetallic veins (Cox and Singer, 1986; model 22c)
Mineral deposit model number 22c
Age of mineralization Late Jurassic or younger based on the age of the host rock of the veins.
Alteration of deposit Silicification.

Production and reserves

Workings or exploration The area was explored with several short adits and drifts.
Indication of production None

Additional comments

The locality is in the Wrangell-Saint Elias National Park and Preserve.

References