|Quadrangle map, 1:250,000-scale||SO|
|Quadrangle map, 1:63,360-scale||C-5|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Shovel Creek is a major northeast tributary of the lower Solomon River. The mouth of Shovel Creek is 0.5 mile north of Lees Camp. This is locality 90 of Cobb (1972, MF 445; 1978, OF 78-181).|
Geologic descriptionAt least three of the lower three and a half miles of Shovel Creek has been extensively placer mined, mostly by dredges and mostly in the 1920s. Early mining (Smith, 1910) encountered thin, 1 to 3 feet thick gravels over bedrock in a pay streak up to 1,000 feet wide (based on the distribution of tailings shown on the recent topographic map of the area). The elevation of the workings is between 50 and 150 feet. Recorded production as compiled by Lu and others (1968) is about 20,000 ounces. Bedrock is part of a lower Paleozoic metasedimentary assemblage (Sainsbury and others, 1972, OFR 511; Till and others, 1986).
|Geologic map unit||(-164.416608715374, 64.6472551058956)|
|Mineral deposit model||Placer Au-PGE (Cox and Singer, 1986; model 39a).|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary; the location and elevation (50 to 150 feet) of this area indicate that it was affected by Quaternary sea level fluctuations.|
|Workings or exploration||Mined by dredging, hydraulic and small-scale operations over at least three of the lower three and a half miles of the creek.|
|Indication of production||Yes; small|
|Production notes||Recorded production as compiled by Lu and others (1968) is about 20,000 ounces.|
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.
Lu, F.C.J., Heiner, L.E., and Harris, D.P., 1968, Known and potential ore reserves, Seward Peninsula, Alaska: University of Alaska, Mineral Industry Research Laboratory Report 18, 107 p.
Sainsbury, C.L., Hudson, T.L., Ewing, R., and Marsh, W.R., 1972, Reconnaissance geologic maps of the Solomon D-5 and C-5 quadrangles, Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 72-324, 12 p., 2 sheets, scale 1:63,360.
Smith, P.S., 1910, Geology and mineral resources of the Solomon and Casadepaga quadrangles, Seward Peninsula, Alaska: U.S. Geological Survey Bulletin 433, 234 p.
|Reporters||Travis L. Hudson (Applied Geology)|
|Last report date||8/19/1999|