Main commodities | Cd; Zn |
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Other commodities | Ag |
Ore minerals | sphalerite |
Quadrangle map, 1:250,000-scale | SP |
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Quadrangle map, 1:63,360-scale | C-1 |
Latitude | 67.6011 |
Longitude | -153.2719 |
Nearby scientific data | Find additional scientific data near this location |
Location and accuracy | This site is at an elevation of about 4400 feet, 3.75 miles west of Nahtuk Mountain. It is in the N1/2 of sec. 5, T. 25 N., R. 25 E., of the Kateel River Meridian. Accuracy of location is within 100 ft. The site corresponds to locality 37 of Grybeck and Nelson (1981). |
Geologic descriptionThis occurrence consists of small amounts of sphalerite in quartz veinlets and as disseminated grains in a prominent orange-weathering knob about 30 feet in diameter (Grybeck and Nelson, 1981). The knob consists of dark-gray limestone that is faulted(?) into a sequence of calcareous muscovite phyllite. Selected samples contain more than 1 percent Zn, 500 ppm Cd, and up to 2 ppm Ag. Apparently the mineralized rock is restricted to the knob. | |
Geologic map unit | (-153.274695739531, 67.6006292118632) |
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Workings or exploration | Site visted during regional geologic mapping by the USGS in the late 1970s. |
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Indication of production | None |
Additional commentsLocated within Gates of the Arctic National Park. |
MRDS Number | A011921 |
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References | |
Reporters | S.W. Nelson (Anchorage, Alaska) |
Last report date | 9/20/1999 |