|Quadrangle map, 1:250,000-scale||NM|
|Quadrangle map, 1:63,360-scale||D-1|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Charlie Creek is a south tributary to upper Sinuk River. Placer gold was mined in lower Charlie Creek from below the forks of upper Charlie Creek downstream to where it enters the flood plain of Sinuk River (Collier and others, 1908, plate X). This is locality 80 of Cobb (1972 [MF 463], 1978 [OFR 78-93]).|
Placer gold was mined on Charlie (Charley) Creek on a small scale prior to WWI (Brooks and others, 1901). Moffit (1907) reports that discovery of bismuth minerals in miners' sluice boxes led to the discovery of the bismuth-bearing quartz veins (NM048) in upper Charlie Creek (Moffit, 1907). Hummel and Chapman (1960, p. B32) reported 20 ppm bismuth from a stream sediment sample from Charlie Creek, the highest content of any creek that they sampled in the southwest Seward Peninsula except for Thomson Creek (NM036) in the Kigluaik Mountains. They also reported 300 ppm arsenic, a concentration only equaled at Rock Creek in the Nome C-1 quadrangle, suggesting the presence of arsenopyrite in the creek sediments.Charlie Creek drains pelitic biotite-garnet schist and a highly pyritic pelitic schist (Bundzten and others, 1994). These metasedimentary rocks are probably of Precambrian or early Paleozoic protolith age (Till and Dumoulin, 1994; Bundzten and others, 1994). The schist is cut by numerous quartz veinlets in cross-joints there are a few quartz veins reportedly to be as much as 4 feet wide (Chapin, 1914 [B 592-L, p. 385-395]). The quartz veins or veinlets are probably the source of the gold, native bismuth, bismuthinite and rutile that has been reported from heavy mineral concentrates from Charlie Creek.
|Geologic map unit||(-165.49232900047, 64.8572397652963)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986; model 39a).|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary.|
|Workings or exploration||Charlie Creek was known as auriferous by 1901 (Brooks and others, 1901). The creek was mined on a small scale with sluice boxes before 1907 (Moffit, 1907). It probably has been prospected more recently.|
|Indication of production||Undetermined|
Brooks, A.H., Richardson, G.B., Collier, A.J., and W.C. Mendenhall, 1901, A reconnaissance in the Cape Nome and adjacent gold fields of Seward Peninsula, Alaska, in 1900: U.S. Geological Survey Special Publication, p. 1-185, maps.
Bundtzen, T.K., Reger, R.D., Laird, G.M., Pinney, D.S., Clautice, K.H., Liss, S.A., and Cruse, G.R., 1994, Progress report on the geology and mineral resources of the Nome mining district: Alaska Division of Geological and Geophysical Surveys, Public Data-File 94-39, 21 p., 2 sheets, scale 1:63,360.
Chapin, Theodore, 1914, Placer mining on Seward Peninsula: U.S. Geological Survey Bulletin 592-L, p. 385-395.
Collier, A.J., Hess, F.L., Smith, P.S., and Brooks, A.H., 1908, The gold placers of parts of Seward Peninsula, Alaska, including the Nome, Council, Kougarok, Port Clarence, and Goodhope precincts: U.S. Geological Survey Bulletin 328, 343 p.
Hummel, C.L., and Chapman, R.M., 1960, Geologic and economic significance of some geochemical results obtained from stream sediment samples near Nome, Alaska: U.S. Geological Survey Professional Paper 400-B, p. B30-33.
Moffit, F.H., 1913, Geology of the Nome and Grand Central quadrangles, Alaska: U.S. Geological Survey Bulletin 533, 140 p.
Till, A.B., and Dumoulin, J.A, 1994, Geology of Seward Peninsula and St. Lawrence Island, in Plafker, G., and Berg, H.C., eds., The Geology of Alaska: Geological Society of America, DNAG, The Geology of North America, v. G-1, p. 141-152.
|Reporters||C.C. Hawley and Travis L. Hudson|
|Last report date||10/22/1999|