|Quadrangle map, 1:250,000-scale||HE|
|Quadrangle map, 1:63,360-scale||A-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This prospect is on Peak 5532, at the west-central edge of sec. 15, T. 22 S., R. 1 W., of the Fairbanks Meridian. The location is accurate to within 1,000 feet. This is location B-13 of Balen (1990: 34-90).|
Geologic descriptionThe country rocks at this prospect are Middle or Upper Triassic Nikolai Greenstone, and probably cogenetic, ultramafic dikes that cut the greenstone. The deposit consists of disseminations and pods of chalcopyrite, chromite, pentlandite, and pyrrhotite in within the ultramafic intrusive rocks. Samples contain as much as 0.41% chromium, 0.15% copper, 0.11% nickel, 28 ppb palladium, and 140 ppb platinum (Balen and others, 1991).
|Geologic map unit||(-147.735253939287, 63.0085467150891)|
|Mineral deposit model||Cu-Ni-PGE (Cox and Singer, 1986; model 5).|
|Mineral deposit model number||5|
|Age of mineralization||The ore minerals probably are magmatic segregations in the Triassic ultramafic hostrocks.|
|Workings or exploration||There has only been surface sampling to date.|
|Indication of production||None|
Additional commentsThis deposit was discovered in the 1980s, during a regional geologic reconnaissance by the Bureau of Land Management (Balen, 1990: OFR 34-90).
Balen, M.D., 1990, Geochemical sampling results from Bureau of Mines investigations in the Valdez Creek mining district, Alaska: U.S. Bureau of Mines Open-File Report 34-90, 218 p., 2 sheets, scale 1:63,360.
|Reporters||N. Van Wyck (Stevens Exploration Management Corporation)|
|Last report date||4/7/2000|