Round

Occurrence, Inactive

Commodities and mineralogy

Main commodities Ag
Other commodities Cu
Gangue minerals epidote; quartz

Geographic location

Quadrangle map, 1:250,000-scale MG
Quadrangle map, 1:63,360-scale D-6
Latitude 62.891
Longitude -155.665
Nearby scientific data Find additional scientific data near this location
Location and accuracy The Round occurrence is situated about 40 meters north of VABM Round at an elevation of 1,550 feet (472 m) in the NW1/4 sec. 4, T. 32 N., R. 43 W., of the Seward Meridian. The reporter visited the site in 1978.

Geologic setting

Geologic description

The Round occurrence consists of an iron-stained quartz-epidote stockwork in hornfels of the Late Cretaceous Kuskokwim Group flysch (Bundtzen and Laird, 1983). The occurrence is poorly exposed and mainly observed in talus and rubble crop. No surface dimensions were measured, and its extent is unknown. Selected surface samples contain up to 5.43 grams/tonne silver and 99 ppm copper (Bundtzen and Laird, 1983).
Geologic map unit (-155.667347629915, 62.8903709457129)
Mineral deposit model Polymetallic vein (Cox and Singer, 1986; model 22c).
Mineral deposit model number 22c
Alteration of deposit None.

Production and reserves

Workings or exploration Selected surface samples contain up to 5.43 g/tonne silver, and 99 ppm copper (Bundtzen and Laird, 1983).
Indication of production None
Reserve estimates None.

References