Surprise

Prospect, Inactive

Commodities and mineralogy

Main commodities Ag; Pb; Zn
Other commodities Barite
Ore minerals barite; galena; sphalerite

Geographic location

Quadrangle map, 1:250,000-scale DL
Quadrangle map, 1:63,360-scale A-2
Latitude 68.09
Longitude -163.07
Nearby scientific data Find additional scientific data near this location
Location and accuracy The Surprise prospect is at an elevation of about 800 feet on the south side of a tributary to the Wulik River. The map site is in section 17, T. 31 N., R.19 W., of the Kateel River Meridian. Location is accurate within a one mile radius.

Geologic setting

Geologic description

The Surprise prospect consists of barite and sulfide mineralization in a Mississippian to Permian black shale horizon (J. Britton, oral communication, 1998). Sedimentary exhalative Pb-Zn type mineralization was intersected in 3 drill holes. Grades of approximately 3 percent combined lead and zinc occurred over intervals ranging from 10 to 24 feet.
Geologic map unit (-163.072956788624, 68.0893440542739)
Mineral deposit model Sedimentary exhalative Zn-Pb (Cox and Singer, 1986; model 31a).
Mineral deposit model number 31a
Age of mineralization Mississippian to Permian.

Production and reserves

Workings or exploration Three core holes were drilled on the prospect by GCO.
Indication of production None

References

Reporters Anita Williams (Anchorage, AK)
Last report date 12/21/1999