Yellow Jacket

Prospect, Inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale SR
Quadrangle map, 1:63,360-scale C-8
Latitude 60.5336
Longitude -149.631
Nearby scientific data Find additional scientific data near this location
Location and accuracy The prospect is located in the SE1/4 section 9, T. 5 N., R. 2 W., of the Seward Meridian. It is situated on Quartz Creek one mile below its junction with Devils Creek. This is location 60 of Tysdal (1978 [MF-880-A]) and location S-243 of Jansons and others (1984). This location is accurate to within a quarter of a mile.

Geologic setting

Geologic description

This deposit consists of a 44-inch-wide quartz vein that strikes N60E and dips nearly vertically. On the surface the vein is 1 foot wide and is visible for about 200 feet. It is reported to be traceable for 1,500 feet (Martin and others, 1915). The host rock is sedimentary rock of the Valdez Group of Late Cretaceous age (Nelson and others, 1985).
Geologic map unit (-149.633160557255, 60.5330342580634)
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 veins cut rocks of the Valdez Group of Late Cretaceous age.

Production and reserves

Workings or exploration Martin and others (1915) reported that a 35-foot adit that intersected a 44-inch-thick quartz vein. The highest assay value reported by the claimant to Martin was $9.00 in gold per ton of ore (gold at $20.67 per ounce). The U.S. Bureau of Mines searched for the prospect in 1980 but did not locate it (Hoekzema and Sherman, 1983).
Indication of production None

References