|Quadrangle map, 1:250,000-scale||HU|
|Quadrangle map, 1:63,360-scale||A-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is located east of the Indian River, about 4.5 miles south of Indian Mountain. The occurrence is at an elevation of about 1,800 feet, 0.3 mile west of the center of section 18, T. 7 N., R. 25 E. of the Kateel River Meridian. The location is accurate within 1 mile.|
Geologic descriptionKurtak and others (1999) report a small, conspicuous, color anomaly, which is the expression of hydrothermally altered andesite(?) that contains 2 to 3% pyrite. The andesite(?) and numerous quartz veinlets occur only as float. The oxidized rocks commonly exhibit boxworks and gossan textures which suggest a high, original sulfide content. Samples of quartz-rich float contain up to 593 ppb gold, 21.6 ppm silver, and 692 ppm, copper. The rocks in the area are Upper Jurassic-Lower Cretaceous, andesitic volcanic rocks (Patton and Miller, 1966).
|Geologic map unit||(-153.690623799453, 66.00946256895)|
|Mineral deposit model||Porphyry Cu-Au? (Cox and Singer, 1986; model 20c?).|
|Mineral deposit model number||20c?|
|Alteration of deposit||Oxidation and unspecified hydrothermal alteration.|
|Workings or exploration||Only surface sampling.|
|Indication of production||None|
Kurtak, J.M., Klieforth, R.F., Clark, J.M., and Williams, E.M., 1999, Mineral investigations in the Koyukuk mining district, northern Alaska--Progress Report: U.S. Bureau of Land Management Open-File Report 74, 158 p.
|Reporters||J.M. Britton (Anchorage)|
|Last report date||8/1/2002|