Unnamed (headwaters of Rick's Creek)

Occurrence, Undetermined

Commodities and mineralogy

Main commodities W
Other commodities Cu
Ore minerals arsenopyrite; chalcopyrite; pyrite
Gangue minerals calc-silicates; quartz

Geographic location

Quadrangle map, 1:250,000-scale BD
Quadrangle map, 1:63,360-scale D-2
Latitude 64.83
Longitude -144.96
Nearby scientific data Find additional scientific data near this location
Location and accuracy An occurrence noted by Albanese (1984) is located on a ridge in the headwaters of Rick's Creek (BD036). The approximate location of the occurrence is in NW1/4 section 16, T. 1 S., R. 14 E., of the Fairbanks Meridian. It was not identified as a separate location by Cobb (1972) or by Cobb and Eberlein (1980).

Geologic setting

Geologic description

As reported by Albanese (1984), the occurrence is a pod of gossan containing arsenopyrite, chalcopyrite, and chalcopyrite in calc-silicate rock. Weber and others (1978) describe the country rock as quartzite, slate, calc-phyllite and marble. The occurrence is located near contact of a Tertiary to Cretaceous granodiorite to quartz monzonite intrusion. An assay of a rock sample contained 475 ppm Cu, 3 ppm Pb, 3 ppm Zn, 1.5 ppm Ag, 2 ppm Mo, 5 ppm Sn, greater than 1000 ppm W, 465 ppm As, and 1,330 ppm Mn (Albanese, 1984).
Geologic map unit (-144.962376528446, 64.829622909786)

Production and reserves

Workings or exploration Occurrence noted during geologic mapping.
Indication of production Undetermined

References