Unnamed (head of Dike Creek)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Co; Cr; Ni

Geographic location

Quadrangle map, 1:250,000-scale MC
Quadrangle map, 1:63,360-scale C-8
Latitude 61.7123
Longitude -143.7559
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at an elevation of about 5,600 feet on the ridge at the head of Dike Creek. It is just south of the center of section 16, T. 4 S., R. 9 E. of the Copper River Meridian. This is locality 105 of MacKevett (1976); the location is probably accurate to within a a few thousand feet.

Geologic setting

Geologic description

This occurrence consists of a small gabbro cupola that intrudes upper Paleozoic volcanic rocks (MacKevett, 1976; MacKevett and others, 1978). A sample of the gabbro contained 150 parts per million (ppm) cobalt, 1,000 ppm chromium, and 150 ppm nickel.
Geologic map unit (-143.757991897809, 61.7118439827399)
Age of mineralization Triassic(?) based on the age of gabbro elsewhere in the McCarthy C-8 quadrangle (MacKevett and others, 1978).

Production and reserves

Workings or exploration Only limited surface sampling.
Indication of production None

Additional comments

The locality is in the Wrangell-Saint Elias National Park and Preserve.

References