Miners River No. 2

Occurrence, Inactive

Commodities and mineralogy

Main commodities Ag; As; Au; Pb; Zn
Ore minerals arsenopyrite; galena; pyrite; sphalerite

Geographic location

Quadrangle map, 1:250,000-scale AN
Quadrangle map, 1:63,360-scale A-1
Latitude 61.08
Longitude -147.35
Nearby scientific data Find additional scientific data near this location
Location and accuracy Northwest flank of glacier covered mountain that separates the Miners River drainage and the Wells Bay drainage. The glacier feeds the headwaters of both drainages. Accurate within 1 mile. Locality A-10 of Jansons and others (1984).

Geologic setting

Geologic description

Shear zones cut steeply dipping sandstone, siltstone, and mudstone of the Tertiary Orca Group. The shear zones are reported by Jansons and others (1984) to be from a few inches to 150 ft wide. Galena, sphalerite, and arsenopyrite occur in 0.25 to 6 inch wide veinlets. Pyrite occurs as disseminations and pods in the shear zones.
Chip, grab, and shallow core samples contained 14 ppm to 19 percent Zn, 1 ppm to 17.5 percent Pb, less than 0.003 oz/ton to 13.7 oz/ton Ag, less than 0.001 oz/ton to 0.084 oz/ton Au, and less than 10 ppm to 1.15 percent As (Jansons and others, 1984).
Geologic map unit (-147.352075867985, 61.0794624293402)
Age of mineralization Paleocene or younger; shear zones cut sandstone, siltstone, and mudstone of the Tertiary Orca Group.

Production and reserves

Workings or exploration Chip, grab, and shallow core samples contained 14 ppm to 19 percent Zn, 1 ppm to 17.5 percent Pb, less than 0.003 oz/ton to 13.7 oz/ton Ag, less than 0.001 oz/ton to 0.084 oz/ton Au, and less than 10 ppm to 1.15 percent As. Moderate mineral development potential (Jansons and others, 1984).
Indication of production None
Reserve estimates Inferred reserves are 1,500 tons at 4.23 percent Zn, 2.24 percent Pb, and 5.88 ppm Ag (Jansons, 1984).

References

MRDS Number A106203
Reporters D.P. Bickerstaff (USGS contractor); S.W. Huss (USGS)
Last report date 7/30/1998