|Quadrangle map, 1:250,000-scale||AR|
|Quadrangle map, 1:63,360-scale||D-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Located west of Kavachurak Creek at approximately 2000 ft. (600 m) elevation in T. 28 N., R 9 E., Kateel River Meridian. Shown as locality 71 in Mayfield and Grybeck (1978) and accurate to within 2000 ft. (600 m).|
Geologic descriptionFour occurrences of Cu-Ag mineralization over 0.15 sq. mi. (200 m sq.) area. Most interesting occurrence is a fan-shaped area of mineralized talus ranging from 5 ft. to 10 ft. (1.3 m to 3 m) wide over a slope distance of 300 ft. (100 m) that consists of dolomite breccia containing masses of tetrahedrite, tennantite, chalcopyrite, malachite and azurite, mixed with fragments of quartz-vein material containing chalcopyrite. Other three occurrences are quartz veins generally 0.5 to 6 in. (1 cm to 12 cm) wide (one vein 1.5 ft. (0.3 m) wide) having strike lengths up to 75 ft. (15 m), and quartz stringer zones 40 ft. to 100 ft. (10.5 m to 30 m) wide, carrying tetrahedrite, chalcopyrite and malachite. Host rock is brecciated dolomite overlain by limestone and underlain by limestone, marble, and a sequence of phyllites; dolomite breccia forms prominent rust-colored hills (Degenhart and others, 1978, p. 351-371).
|Geologic map unit||(-156.762840035641, 67.8094801199612)|
|Mineral deposit model||Kipushi (Cox and Singer, 1986; model 32c)?|
|Mineral deposit model number||32c?|
|Alteration of deposit||Fe-staining.|
|Workings or exploration||Two samples representative of mineralized dolomite breccia contained 18.6 percent Cu over 36 ft. (12 m) length, and 33.8 percent Cu over 50 ft. (17 m) length. One 4 to 6 in. (8 cm to 12 cm) wide quartz vein assayed 6.2 percent Cu, 0.62 percent Zn, 4.9 oz/ton (152g/ton) Ag, and 3.2 percent Sb. Another 40 ft. (13 m) chip sample across a stringer zone assayed 0.8 percent Cu, 0.48 oz/ton (15g/ton) Ag (Degenhart and others, 1978, p. 351-371).|
|Indication of production||None|
Three minor occurrences of malachite are present along the north slope of the mountain immediately southwest of Kav occurrence.All occurrences are located within Noatak National Preserve.
|Reporters||K.R. Leonard (USGS), R.L. Elliott (USGS), J.M. Schmidt (USGS)|
|Last report date||10/26/1992|