Unnamed

Occurrence, Inactive

Commodities and mineralogy

Main commodities Ag; Mo; Pb; Zn
Ore minerals galena; molybdenite; sphalerite

Geographic location

Quadrangle map, 1:250,000-scale AR
Quadrangle map, 1:63,360-scale B-1
Latitude 67.42
Longitude -156.28
Nearby scientific data Find additional scientific data near this location
Location and accuracy Located on ridge southeast of Shishakshinovik Pass in T. 23 N., R. 12 E., Kateel River Meridian. Shown as location 52 in Mayfield and Grybeck (1978). Accurate to within 2000 ft. (600 m).

Geologic setting

Geologic description

Minor amounts ofgalena, sphalerite and molybdenite in granite near contact. Deposit is 1. 5 mi. (2.4 km) long and up to 20 ft. (6 m) thick. Granite intrudes sequence of limestone, dolomite, shale, graphite schist, and quartz-chlorite schist; it probably is an apophysis of the Shishakshinovik pluton (Mayfield and Grybeck, 1978).
Geologic map unit (-156.282770559688, 67.4194742561541)
Mineral deposit model Skarn (Cox and Singer, 1986; model 18b).
Mineral deposit model number 18b

Production and reserves

Workings or exploration Surface workings and high geochemical anomalies in Pb, Zn and Mo Mayfield and Grybeck (1978). One float boulder found in drainage contained 5 percent galena, 10 to 15 percent pyrite, and 3 percent sphalerite. Degenhart (1978, p. 391), reported several analyses of samples: sample BM 1230 contained 630 ppm Pb and 400 ppm Zn; a 900 ft (305 m) chip sample of granite (BM 1226) contained 2 percent Pb, 1.65 percent Zn, and 3 oz./ton (102 g/ton) Ag. Other mineralized float samples observed in the area.
Indication of production None

References

MRDS Number A011898
Reporters K.R. Leonard (USGS), R.L. Elliott (USGS), J.M. Schmidt (USGS)
Last report date 6/30/1992