Unnamed (ridge between West Fork of Glen Creek and Rainy Creek)

Prospect, Inactive

Commodities and mineralogy

Main commodities Ag
Other commodities Au; Pb; Sb
Ore minerals galena; pyrite; stibnite
Gangue minerals calcite; quartz; tourmaline

Geographic location

Quadrangle map, 1:250,000-scale MM
Quadrangle map, 1:63,360-scale C-2
Latitude 63.5556
Longitude -150.785
Nearby scientific data Find additional scientific data near this location
Location and accuracy This prospect is at an elevation of about 3850 feet on the crest of the ridge that separates the head of Rainy Creek from the West Fork of Glen Creek. It is in the NW1/4 SE /4 section 2, T. 16 S., R. 17 W., Fairbanks Meridian. The location is accurate within 500 feet.

Geologic setting

Geologic description

The country rock in the area of this prospect is primarily metafelsite schist of the lower Paleozoic Spruce Creek sequence; float of Tertiary basalt occurs nearby (Bundtzen, 1981; Thornsberry, McKee, and Salisbury, 1984, fig. K-2). The deposit consists of anastomosing, pyrite- and stibnite-bearing quartz-calcite-tourmaline veins. The veins are in a zone several feet wide that can be traced easterly in a series of pits and an adit, all sloughed or caved. A grab sample assayed 4.55 percent lead, 0.064 ounce of gold per ton, 97.2 ounces of silver per ton, and 1.8 percent antimony. Copper, zinc, and arsenic contents are each in the 0.X percent range. The lead assay indicates the presence either of galena or another lead-bearing mineral.
Geologic map unit (-150.787283116871, 63.5550973452653)
Mineral deposit model Polymetallic vein (Cox and Singer, 1986; model 22c).
Mineral deposit model number 22c
Age of mineralization The deposit is assumed to be Eocene (see record MM091).

Production and reserves

Workings or exploration The deposit was explored by several pits and a short adit, since caved.
Indication of production Undetermined

Additional comments

The prospect is in Denali National Park.

References