Mayflower

Prospect, Inactive

Commodities and mineralogy

Main commodities Au
Ore minerals arsenopyrite; gold
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale SR
Quadrangle map, 1:63,360-scale D-3
Latitude 60.9825
Longitude -147.9668
Nearby scientific data Find additional scientific data near this location
Location and accuracy The prospect is at an elevation of 1,300 feet, on the crest of the ridge about 1.2 miles northeast of Golden. It is located in the SW1/4 section 1, T. 10 N., R. 8 E., of the Seward Meridian. This is location 96 of Condon and Cass (1958), location 80 of Cobb and Richter (1972), location 96 of MacKevett and Holloway (1977), location 152 of Cobb and Tysdal (1980), and location S-135 of Jansons and others (1984). This location is accurate to within a quarter of a mile.

Geologic setting

Geologic description

The prospect is hosted in sheared graywacke and slate of the Valdez Group of Late Cretaceous age. The deposit consists of a single quartz vein carrying arsenopyrite and gold (Cobb and Tysdal, 1980). The vein is in an 8-foot-wide shear zone that strikes northeast and dips 70NW. The vein ranges from 2 to 8 inches wide. The workings on the prospect consist of a 6- by 9-foot open cut.
The U.S. Bureau of Mines sampled this prospect in 1979. Two grab samples contained 0.75 ppm and a trace amounts of gold (Hoekzema and Sherman, 1983).
Geologic map unit (-147.968850197586, 60.9819315948127)
Mineral deposit model Low-sulfide Au-quartz vein (Cox and Singer, 1986; model 36a)
Mineral deposit model number 36a
Age of mineralization Cretaceous or younger; the vein is in a shear zone cuts rocks of the Valdez Group of Late Cretaceous age.

Production and reserves

Workings or exploration The workings on the prospect consist of a 6- by 9-foot open cut. In 1979, the U.S. Bureau of Mines collected two grab samples that contained 0.75 ppm and a trace amounts of gold (Hoekzema and Sherman 1983).
Indication of production None

References

References

Hoekzema, R.P., and Sherman, G.E., 1983, Mineral investigations in the Chugach National Forest, Alaska (Peninsula study area): U.S. Bureau of Mines in-house report; held at U.S. Bureau of Land Management Alaska State Office, Anchorage, 524 p.
Reporters Jeff A. Huber (Anchorage)
Last report date 1/10/2000