Unnamed (near VABM Way)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Cu
Ore minerals chalcopyrite; malachite; pyrite

Geographic location

Quadrangle map, 1:250,000-scale HE
Quadrangle map, 1:63,360-scale A-2
Latitude 63.033
Longitude -147.62
Nearby scientific data Find additional scientific data near this location
Location and accuracy The site is located at an elevation of approximately 4,500 feet, 0.5 mile northeast of VABM 5896 (Way). The site is in the SE1/4 of sec. 6, T. 22 S., R. 1 E., of the Fairbanks Meridian. The location is accurate to within 1000 feet. This is location 40 of Clark and Cobb (1972).

Geologic setting

Geologic description

This occurrence is close to a thrust separating a slice of Lower Permian? and Pennsylvanian andesitic volcanic rocks from Middle Triassic to Upper Pennsylvanian metasedimentary rocks. Numerous large diabasic and gabbroic dikes and sills occur throughout the area (Wilson and others, 1998). The occurrence consists of pyrite and chalcopyrite disseminated in the volcanic rocks, and of secondary malachite.
Geologic map unit (-147.62225419486, 63.032547737212)
Mineral deposit model Cyprus massive sulfide (Cox and Singer, 1986; model 24a)
Mineral deposit model number 24a
Age of mineralization Sulfide minerals probably are syngenetic with their Triassic-Upper Pennsylvanian host rocks.
Alteration of deposit Oxidation of copper mineral(s) to malachite.

Production and reserves

Workings or exploration Surface sampling only.
Indication of production None

References