|Quadrangle map, 1:250,000-scale||BN|
|Quadrangle map, 1:63,360-scale||D-3|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Cunningham Creek is a west headwater tributary to Hannum Creek (BN057). Hannum Creek is a west tributary to Inmachuk River. Herried (1966) shows placer mine workings to be present 500 feet downstream of the mouth of Harrys Creek but other workings may be present between here and the confluence with Hannum Creek (Cobb, 1975). This is locality 75 of Cobb (1972; MF 417; 1975; OFR 75-429).|
Geologic descriptionPlacer gold mining took place as early as 1901 on Cunningham Creek when $1,200 (about 70 ounces) was said to have been recovered near its mouth (Moffit, 1905). Herreid (1966) shows placer mine workings to be present 500 feet downstream of the mouth of Harrys Creek but other workings may be present between here and the confluence with Hannum Creek (Cobb, 1975, OFR 75-429). Anderson (1947) reports that a placer concentrate produced by drift mining in 1942 contained lead carbonates, pyromorphite, and galena and assayed 50 % Pb and 5.7 ounces/ton Ag. Mining from near Harrys Creek produced coarse gold and abundant galena and pyrite (Mulligan, 1965). Sulfides are also apparently present in colluvial materials along stream. Galena- and sphalerite-bearing lode deposits are present on Harrys Creek (BN055) and Hannum Creek (BN056). Bedrock of the area is a metasedimentary schist and marble sequence of Lower Paleozoic age (Till and others, 1986). Quaternary/Tertiary basalt flows locally cap ridges along stream valleys.
|Geologic map unit||(-163.333706705631, 65.9283032331607)|
|Mineral deposit model||Placer Au-PGE (Cox and Singer, 1986; model 39a)|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary.|
|Workings or exploration||Open-cut surface placer mine workings are locally present between the confluence with Hannum Creek and the mouth of Harrys Creek.|
|Indication of production||Yes; small|
Anderson, Eskil, 1947, Mineral occurrences other than gold deposits in northwestern Alaska: Alaska Territorial Division of Mines Pamphlet 5-R, 48 p.
Cobb, E.H., 1972, Metallic mineral resources map of the Bendeleben quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-417, 1 sheet, scale 1:250,000.
Cobb, E.H., 1975, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Bendeleben quadrangle, Alaska: U.S. Geological Survey Open-File Report 75-429, 123 p.
Herried, G.H., 1966, The geology and geochemistry of the Inmachuk River map area, Seward Peninsula, Alaska: Alaska Division of Mines and Minerals Geological Report 23, 25 p., 1 sheet, scale 1:63,360.
Moffit, F.H., 1905, The Fairhaven gold placers, Seward Peninsula, Alaska: U.S. Geological Survey Bulletin 247, 85 p.
Mulligan, J.J., 1965, Examination of the Hannum lead prospect, Fairhaven district, Seward Peninsula, Alaska: U.S. Bureau of Mines Open-File Report 6-65, 16 p.
|Reporters||Travis L. Hudson (Applied Geology)|
|Last report date||3/15/1999|