Unnamed (east of upper Midas Creek)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Zn
Other commodities As; B; Bi; Sn; W

Geographic location

Quadrangle map, 1:250,000-scale WI
Quadrangle map, 1:63,360-scale B-5
Latitude 67.2597
Longitude -152.2327
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is located about 6 miles south of the junction of Midas and Sixtymile Creeks. It is at an elevation of about 3,400 feet, 0.1 mile southeast of the top of hill 3567, in section 8, T. 28 N., R. 21 W., of the Fairbanks Meridian. The occurrence is the site of sample 82 in Dillon and others (1981 [AOF 133B]). The location is accurate.

Geologic setting

Geologic description

This occurrence consists of skarn mineralization in calcareous schist near an intrusive (Dillon and others, 1981 [AOF 133B]). A chip sample of the mineralized rock contains 3000 ppm zinc, more than 50 ppm tungsten, 700 ppm tungsten, 7 ppm tin, 500 ppm arsenic, 50 ppm bismuth, 700 ppm boron, and 20% iron. The rocks in the vicinity are Devonian chloritic and carbonate rocks and Devonian, Ambler metavolcanics and metabasite (Dillon and others, 1986).
Geologic map unit (-152.235441146519, 67.2592330778321)
Mineral deposit model Sn skarn deposit? (Cox and Singer, 1986; model 14b?).
Mineral deposit model number 14b?

Production and reserves

Workings or exploration Only surface sampling.
Indication of production None