Surprise Creek

Occurrence, Probably inactive

Commodities and mineralogy

Main commodities Pb; Zn
Ore minerals galena; sphalerite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale HE
Quadrangle map, 1:63,360-scale D-3
Latitude 63.93
Longitude -148.32
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at an elevation of about 4,100 feet on Dexter Creek, a tributary of the Totatlanika River. The map site is in the SW1/4 of sec. 27, T. 11 S., R. 4 W., of the Fairbanks Meridian. The location is accurate to within 1 mile.

Geologic setting

Geologic description

The country rocks in the general area of this occurrence are Lower Paleozoic or possibly Upper Precambrian schists and younger Paleozoic Keevy Peak Formation. The deposit is in schist, and consists of stratiform layers of massive galena and sphalerite, accompanied by quartz.
Geologic map unit (-148.3223267206, 63.9295531497407)
Mineral deposit model Kuroko massive sulfide? (Cox and Singer, 1986; model 28a?).
Mineral deposit model number 28a?
Age of mineralization Mineralization is syngenetic with the Lower Paleozoic or possibly Upper Precambrian hostrocks.

Production and reserves

Workings or exploration There has been only surface exploration to date.
Indication of production None

References

MRDS Number 10307530
Reporters N. Van Wyck (Stevens Exploration Management Corporation)
Last report date 4/7/2000