Unnamed (southwest flank of Wickersham Dome)

Prospect, Inactive

Commodities and mineralogy

Main commodities Au
Other commodities Ag; As
Ore minerals arsenopyrite; limonite; pyrite
Gangue minerals quartz; siderite

Geographic location

Quadrangle map, 1:250,000-scale MM
Quadrangle map, 1:63,360-scale C-2
Latitude 63.5518
Longitude -150.9318
Nearby scientific data Find additional scientific data near this location
Location and accuracy This prospect is at an elevation of about 3100 feet on the southwest flank of Wickersham Dome, a short distance northeast of the north end of Quigley Ridge. It is near the west end of the south boundary of section 6, T. 16 S., R. 17 W., Fairbanks Meridian. The location is accurate within 300 feet. The prospect corresponds to number 25 of Bundtzen, Smith, and Tosdal (1976) and to number 81 of Hawley and Associates (1978). It also corresponds to number 43 of Thornsberry, McKee, and Salisbury (1984), although numbers 43 and 42 are interchanged on their map (fig. K-8).

Geologic setting

Geologic description

The country rock at the prospect is mainly feldspathic quartz schist of the Birch Creek Schist (Bundtzen, 1981; Thornsberry, McKee, and Salisbury, 1984). The deposit consists of a sulfide-bearing quartz-siderite vein, and of finely disseminated pyrite and arsenopyrite in the adjacent country rocks. Four largely sloughed pits and a 20-foot-long sloughed trench along the vein are aligned about N 15-20 E. A grab sample of dump material contained barely detectable gold, 1.6 ppm silver, and 670 ppm arsenic; copper, lead, and zinc were near background levels.
Geologic map unit (-150.934087277155, 63.5512940783366)
Mineral deposit model Low-sulfide quartz-siderite vein.
Age of mineralization The deposit is assumed to be Eocene (see record MM091).

Production and reserves

Workings or exploration The prospect is explored by 4 small pits and a short trench of unknown date.
Indication of production None

Additional comments

The prospect is in Denali National Park and Preserve.

References