Wolverine Glacier

Occurrence, Inactive

Commodities and mineralogy

Main commodities Ag
Other commodities Au; Cu; Pb; Zn
Ore minerals chalcopyrite; pyrite; pyrrhotite
Gangue minerals calcite; quartz

Geographic location

Quadrangle map, 1:250,000-scale SR
Quadrangle map, 1:63,360-scale B-6
Latitude 60.3716
Longitude -148.8989
Nearby scientific data Find additional scientific data near this location
Location and accuracy The occurrence is located on the northeast side of the terminus of the Wolverine Glacier at an elevation of about 1,400 feet. It is in the NE1/4 section 10, T. 3 N., R. 3 E., of the Seward Meridian. This is location S-185 of Jansons and others (1984). This location is accurate to 1,500 feet.

Geologic setting

Geologic description

The occurrence consists of iron-stained quartz-calcite veins that recement fractured, tabular felsic dikes. The dikes strike N20-40E and dip vertically. The dikes are part of a north-northeast-trending belt of dikes that extends at least 25 miles to Blackstone Bay (Hoekzema and Sherman, 1983). The dikes intrude interbedded volcanic and sedimentary rocks of the Valdez Group of Late Cretaceous age (Nelson and others, 1985). The age of the dikes is unknown. Sulfide mineralization consists of chalcopyrite, pyrrhotite, and pyrite. The size of the veins is not reported.
Geologic map unit (-148.900995784839, 60.371003155189)
Mineral deposit model Low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a)
Mineral deposit model number 36a
Age of mineralization Cretaceous or younger; the veins cut rocks of the Valdez Group of Late Cretaceous age.

Production and reserves

Workings or exploration No workings or improvements are reported in the literature. The U.S. Bureau of Mines collected one grab sample that assayed a trace of gold and 0.07 ounce of silver per ton (Jansons and others, 1984).
Indication of production None

Additional comments

The dikes described by Hoekzema and Sherman (1983) are not shown on any published geologic map of this area.

References

References

Reporters Jeff A. Huber and Carol S. Huber (Anchorage)
Last report date 4/30/2001