|Quadrangle map, 1:250,000-scale||ID|
|Quadrangle map, 1:63,360-scale||B-3|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is at an elevation of about 700 feet in a minor tributary to upper Beaver Creek. The occurrence is on the south side of Beaver Creek about 5 miles above its mouth. It is in the SE1/4 SW1/4 section 29, T. 27 N., R. 43 W., of the Seward Meridian.|
Geologic descriptionThis previously undescribed placer occurrence is in an unnamed gulch about 5 miles upstream from the mouth of Beaver Creek. The rocks in the vicinity are shale and sandstone of the Upper Cretaceous, Kuskokwim Group (Miller and Bundtzen, 1994; Miller, Bundtzen, and Gray, 2005). The nonmagnetic fraction of a concentrate panned from stream alluvium contained visible grains of gold (Bennett and others, 1988).
|Geologic map unit||(-157.297070669944, 62.3948482481736)|
|Mineral deposit model||Placer Au deposit (Cox and Singer, 1986; model 39a).|
|Mineral deposit model number||39a|
|Age of mineralization||Probably Quaternary.|
|Workings or exploration||Samples were collected by the U.S. Geological Survey in 1985 (Bennett and others, 1988).|
|Indication of production||None|
Bennett, G.J., Gray, J.E., and Taylor, C.D., 1988, Mineralogy and sample locality map of the nonmagnetic, heavy-mineral-concentrate samples, Iditarod quadrangle, Alaska: U.S. Geological Survey Open-File Report 88-32, 37 p., 1 plate, scale 1:250,000.
Miller, M.L., and Bundtzen, T.K., 1994, Generalized geologic map of the Iditarod quadrangle, Alaska showing potassium-argon, major oxide, trace element, fossil, paleocurrent, and archeological sample localities: U.S. Geological Survey Miscellaneous Field Studies Map MF-2219-A, 48 pages; 1 sheet, scale 1:250,000.
|Reporters||T.K. Bundtzen (Pacific Rim Geological Consulting, Inc.), M.L. Miller (U.S. Geological Survey); and C.C. Hawley (Hawley Resource Group)|
|Last report date||5/23/2003|