Unnamed (south flank of Mount Watana)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Cu; Ni
Other commodities Cr
Ore minerals chalcopyrite; pyrite
Gangue minerals epidote

Geographic location

Quadrangle map, 1:250,000-scale TK
Quadrangle map, 1:63,360-scale C-3
Latitude 62.7021
Longitude -148.1157
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at an elevation of about 4,100 feet, approximately 1.4 miles south of the summit of Mt. Watana, near the center of sec. 10, T. 30 N., R. 7 E. of the Seward Meridian. The location is accurate to within 1/4 mile.

Geologic setting

Geologic description

At this occurrence, epidotized Triassic microgabbro contains pyrite and chalcopyrite(?). A U.S. Geological Survey rock sample contains 245 parts per million copper, 303 parts per million chromium, and 156 parts per million nickel (J. Schmidt, written communication, 2001).
Geologic map unit (-148.11792840171, 62.7016322024499)
Mineral deposit model Komatiitic Ni-Cu (Cox and Singer, 1986; model 6a)
Mineral deposit model number 6a
Age of mineralization In Triassic metagabbro.
Alteration of deposit The gabbro is epidotized.

Production and reserves

Workings or exploration Surface sampling only.
Indication of production None