Thompson

Prospect, Inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale LG
Quadrangle map, 1:63,360-scale A-1
Latitude 65.051
Longitude -147.481
Nearby scientific data Find additional scientific data near this location
Location and accuracy Cobb (1972, MF-413), loc. 28; NE1/4 sec. 35, T. 3 N., R. 1 E., of the Fairbanks Meridian. The Thompson prospect is near the head of Last Chance Creek, about 1.2 miles northeast of Pedro Dome, at an elevation of 1,775 feet. Accuracy is within 1,500 feet.

Geologic setting

Geologic description

By 1912, prospect pits revealed gold-bearing quartz rubble (Smith, 1913; B 525). A 15-foot vertical shaft was sunk on a 2-foot-wide shear zone in 1913; about 40 feet below the collar of the shaft, a 100-foot drift was driven parallel to the shear zone. A 20-foot cross-cut from this adit intersected a 5-inch-thick quartz stringer but failed to intersect the 2-foot-wide shear zone found on the surface (Chapin, 1914). Both the quartz stringers and the black carbonaceous schist host rock contained gold.
Geologic map unit (-147.483446134593, 65.0505760976536)
Mineral deposit model Auriferous quartz stringers and auriferous carbonaceous schist.

Production and reserves

Workings or exploration By 1912, prospect pits revealed gold bearing quartz rubble (Smith, 1913; B 525). A 15-foot vertical shaft was sunk on a 2-foot-wide shear zone in 1913; about 40 feet below the collar of the shaft, a 100-foot draft was driven parallel to the shear zone. A 20-foot cross-cut from this adit was driven to intersect a 5-inch-thick quartz stringer (Chapin, 1914).
Indication of production None

References