|Quadrangle map, 1:250,000-scale||SO|
|Quadrangle map, 1:63,360-scale||C-6|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Beaver Creek is an east tributary to the Eldorado River. Placer mining took place along 1.5 miles of the headwaters of the creek between elevations of 225 and 390 feet. This is locality 85 of Cobb (1972, MF 445; 1978, OF 78-181).|
Geologic descriptionPlacer mining took place along 1.5 miles of the drainage between 225 and 390 feet elevation. A dredge was moved into the area and operated in 1940 (Smith, 1942). Mining may have continued for some time following WW II as the next stream to the north (Pajara Creek, ARDF SO035) was dredged in the late 1940s (Cobb, 1973, B 1374). Other information about the placer deposit or mining here is not available. The deposit is at low enough elevations to have been influenced by Quaternary sea level changes. Bedrock in the area is the Ordovican Casadepaga Schist, a mafic metavolcanic assemblage (Till and others, 1986).
|Geologic map unit||(-164.81260904451, 64.6392479563168)|
|Mineral deposit model||Placer Au-PGE (Cox and Singer, 1986; model 39a).|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary; the deposit is at low enough elevations to have been influenced by Quaternary sea level changes.|
|Workings or exploration||The main drainage has open-cut placer workings, at least in part the result of dredging in the 1940s over 1.5 miles of the creek between 225 and 390 feet elevation.|
|Indication of production||Yes; small|
Cobb, E.H., 1972, Metallic mineral resources map of the Solomon quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-445, 1 sheet, scale 1:250,000.
Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Solomon quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-181, 185 p.
Smith, P.S., 1942, Mineral industry of Alaska in 1940: U.S. Geological Survey Bulletin 933-A, p. 1-102.
|Reporters||Travis L. Hudson (Applied Geology)|
|Last report date||8/19/1999|