Unnamed (south bank of Chitina River)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Mo
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale MC
Quadrangle map, 1:63,360-scale A-4
Latitude 61.0838
Longitude -142.3383
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is on the south bank of the Chitina River. It is at an elevation of about 1,400 feet, 800 feet south of the flood plain and 500 east of a small lake. The site is near the center of the SE1/4 of section 14, T. 9 S., R. 17 E. of the Copper River Meridian. This is locality 19 of MacKevett (1976); the location is accurate to within about 500 feet.

Geologic setting

Geologic description

This occurrence consists of quartz veins, 30 to 60 cm thick, in shear zones in Upper Paleozoic metamorphic rocks. A sample of vein material contained 0.5 ppm silver, 300 ppm arsenic, and 70 ppm molybdenum (MacKevett, 1976).
Geologic map unit (-142.340313383958, 61.0833669881538)
Mineral deposit model Quartz veins
Age of mineralization Upper Paleozoic or younger based on metamorphic host rocks of the Skolai Group (MacKevett, 1978).
Alteration of deposit Silicification.

Production and reserves

Workings or exploration Limited surface sampling.
Indication of production None

Additional comments

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

References