Unnamed (flank of Dry Creek)

Prospect, Active?

Commodities and mineralogy

Main commodities Ag; Pb; Zn
Other commodities Cu
Ore minerals galena; sphalerite
Gangue minerals chlorite; quartz; sericite

Geographic location

Quadrangle map, 1:250,000-scale HE
Quadrangle map, 1:63,360-scale D-1
Latitude 63.93
Longitude -147.46
Nearby scientific data Find additional scientific data near this location
Location and accuracy This prospect is at an elevation of about 3,600 feet on the northwest side of Dry Creek, about 3.4 miles west-northwest of the junction of Red Mountain Creek. The map site is at about the center of sec. 25, T. 11 S., R. 1 E., of the Fairbanks Meridian. The location is accurate to within 0.5 mile.

Geologic setting

Geologic description

The country rocks at this prospect are the Lower Mississippian to Middle Devonian Totatlanika Schist, composed predominantly of mafic and felsic metavolcanic and metavolcaniclastic rocks, pelitic schist, and minor marble (Wilson and others, 1998). The deposit consists of massive-sulfide lenses in schist (Cox and others, 1989). The lenses are mainly galena and sphalerite, accompanied by chlorite, quartz, and sericite. The schist in the footwall is altered to chlorite and sericite.
Geologic map unit (-147.462323133145, 63.9295714211753)
Mineral deposit model Kuroko massive sulfide (Cox and Singer, 1986; model 28a)
Mineral deposit model number 28a
Age of mineralization Mineralization was probably syngenetic with the Lower Mississippian to Middle Devonian host rocks.
Alteration of deposit Footwall alteration zones containing chlorite and sericite.

Production and reserves

Workings or exploration Surface exploration only.
Indication of production None

Additional comments

The deposit at this prospect is considered to be a satellite of the deposit at the Red Mountain prospect (HE122).

References

MRDS Number 10307552

References

Reporters N. Van Wyck (Stevens Exploration Management Corporation)
Last report date 4/7/2000