Unnamed (ridge between Bear and Clear Creeks)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Sb
Other commodities Au
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale HU
Quadrangle map, 1:63,360-scale A-6
Latitude 66.2046
Longitude -155.8481
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is on the ridge between Clear and Bear Creeks, about 3.5 miles northeast of the summit of Caribou Mountain. It is at an elevation of about 1,600 feet, in the NW1/4 E1/4 of section 3, T. 9 N., R. 14 E. of the Kateel River Meridian. The location is accurate within one-half mile.

Geologic setting

Geologic description

This occurrence consists of altered quartz breccia in the contact zone between the Cretaceous, Zane Hills pluton and Lower or Upper Jurassic, andesitic volcanic rocks. A grab sample of the breccia contains 200 ppm antimony (Miller and Ferrians, 1968). No sulfides were noted in the sample description. Stream-sediment sample in the area are anomalous in lead and copper (Miller and Ferrians, 1968). A stream-sediment sample from a nearby spring contains 1.74 ppm Au (Miller and Ferrians, 1968). The rocks in the area are gneissic monzonite and quartz monzonite.
Geologic map unit (-155.850753304498, 66.2040381485535)
Age of mineralization The Zane Hills pluton is Cretaceous based on a K-Ar date of 81 Ma.

Production and reserves

Workings or exploration Only surface sampling.
Indication of production None

References