|Quadrangle map, 1:250,000-scale||UK|
|Quadrangle map, 1:63,360-scale||A-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This site is at an elevation of about 800 feet, approximately 2 1/2 miles due west of the head of Russian Bay. Site location is accurate to within 1 mile.|
This site was called the Russian Bay prospect by Randolph and Ellis (1989). It is a geothermal area of hot-springs and one active fumarole and is marked by an 8,000 x 10,000 foot color anomaly.
Many centers of extreme acid leaching are present and consist of blue-gray pyritic clay and minor silica. An intensely silicified fault breccia occurs at one locality on the east edge of the color anomaly.Fifty-three rock samples collected by Battle Mountain Exploration contained up to 745 ppm arsenic, 104 ppb gold, > 5 ppm mercury, 23 ppm molybdenum, and 3.8 ppm silver (Randolph and Ellis, 1989).
|Geologic map unit||(-168.442002784106, 53.1590590932006)|
|Mineral deposit model||Hot-spring Au-Ag (Cox and Singer, 1986, model 25a)|
|Mineral deposit model number||25a|
|Age of mineralization||Tertiary or younger.|
|Alteration of deposit||This site exhibits argillic alteration and minor silicification.|
|Workings or exploration||Fifty-three rock samples collected by Battle Mountain Exploration contained up to 745 ppm arsenic, 104 ppb gold, >5 ppm mercury, 23 ppm molybdenum, and 3.8 ppm silver (Randolph and Ellis, 1989, p. 11).|
|Indication of production||None|
Additional commentsThis site is on land selected by the Aleut Native Corporation.
Randolph, D.B., and Ellis, W.T., 1989, Unalaska project, 1989 final report: Battle Mountain Exploration Company, Alaska District, 41 p., 5 appendices, 11 plates, various scales. (Report held by the Aleut Corporation, Anchorage, Alaska.)
|Reporters||S.H. Pilcher (Anchorage)|
|Last report date||1/27/2000|