Kolotuk Creek

Occurrence, Inactive

Commodities and mineralogy

Main commodities Cu
Other commodities Cu
Ore minerals azurite; malachite

Geographic location

Quadrangle map, 1:250,000-scale ML
Latitude 69.28
Longitude -144.43
Nearby scientific data Find additional scientific data near this location
Location and accuracy Within 2,220 meters (4,000 ft)

Geologic setting

Geologic description

Azurite and malachite stains on limestone in thermally altered zone at contact of granite with host rock. Brosge observed no sulfides (personal observation, 1976) at site. Heavy minerals separated from a panned- concentrated sample of stream sediments at 69.283° N, 144.417° W contained yttocerite(?), fluorite, and 0.030 eU.
Geologic map unit (-144.432749539951, 69.2797419482507)
Mineral deposit model Possibly Cu skarn
Age of mineralization Possibly Early Devonian

Production and reserves

Workings or exploration None
Indication of production None


MRDS Number A015640


Reporters Powers, M.T. (Huber, D.F.), Schmidt, J.M., Kelley, J.S.
Last report date 9/13/1996