Buckskin Creek Mine, Fortymile District, Southeast Fairbanks Borough, Alaska, USA
| Latitude & Longitude (WGS84): | 64° 11' 45'' North , 141° 58' 58'' West |
|---|---|
| Latitude & Longitude (decimal): | 64.19583,-141.98278 |
| Köppen climate type: | Dfc : Subarctic climate |
Location: Buckskin Creek is about 9 miles north-northwest of Chicken; it drains eastward into the South Fork of the Fortymile River. The exact location of placer workings on Buckskin Creek is unknown, although a prospector indicated that there was pay gravel from the mouth of Fortyfive Pup for about 2 miles down Buckskin Creek (Mertie, 1938 ). The coordinates are arbitrarily placed on Buckskin Creek approximately 1 mile east of the mouth of Fortyfive Pup, in section 27, T. 8 S., R. 29 E., of the Fairbanks Meridian. Buckskin Creek is locality 71 of Burleigh and Lear (1994), locality 10 of Eberlein and others (1977), and locality 48 of Cobb (1972 [MF-393]). Buckskin Creek has one placer gold-bearing tributary, Fortyfive Pup (EA104).
Geology: The rocks in the vicinity of Buckskin Creek are primarily Paleozoic (and possibly Precambrian), amphibolite-facies rocks that include biotite gneiss and amphibolite, as wellas lesser Jurassic to Triassic granodiorite (Foster, 1976). Quaternary colluvium and terrace deposits are locally extensive. Small-scale placer mining on Buckskin Creek was reported in 1904, 1912, 1914, and in 1935 (Prindle, 1906; Brooks, 1915; Smith, 1937). In 1936, a prospector claimed to have found 5 miles of dredging ground on Fortyfive Pup and 2 additional miles on Buckskin Creek below the mouth of Fortyfive Pup (Mertie, 1938). The pay streak was estimated to be 200 to 300 feet wide, with overburden from 12 to 16 feet thick.
Workings: Small-scale placer mining on Buckskin Creek was reported in 1904, 1912, 1914, and in 1935 (Prindle, 1906; Brooks, 1915; Smith, 1937). In 1936, a prospector claimed to have found 5 miles of dredging ground on Fortyfive Pup and 2 additional miles on Buckskin Creek below the mouth of Fortyfive Pup (Mertie, 1938). The pay streak was estimated to be 200 to 300 feet wide, with overburden from 12 to 16 feet thick.
Age: Quaternary.
Commodities (Major) - Au
Development Status: Undetermined.
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a).
Mineral List
1 valid mineral.
Regional Geology
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
| Quaternary 0 - 2.588 Ma ID: 1805657 | Unconsolidated surficial deposits, undivided Age: Pleistocene (0 - 2.588 Ma) Description: Elongate deposits of moderately to well sorted, well stratified, fluvial pebble-cobble gravel, sand, and silt, with scattered to numerous boulders, deposited in active stream channels, floodplains, and associated low terraces. Deposit is medium to thick bedded, locally crossbedded, shows fining-upward cycles, and is locally auriferous. Cobbles are generally rounded and may reach a maximum diameter of 1m. Locally overlain by up to 3mof ice-rich organic silt and muck, particularly along valley margins, containing Pleistocene mammalian remains (including mammoth, horse, caribou, and bison). Surface disturbances, such as from excavation, commonly result in melting and subsequent slumping and flowage. Surface smooth except for local low scarps Lithology: Unconsolidated Reference: Wilson, F.H., Hults, C.P., Mull, C.G, and Karl, S.M. (compilers). Geologic map of Alaska. doi: 10.3133/sim3340. U.S. Geological Survey Scientific Investigations Map 3340, pamphlet 196. [21] |
| Devonian - Cambrian 358.9 - 541 Ma ID: 653105 | Sedimentary; Clastic: shallow marine Age: Paleozoic (358.9 - 541 Ma) Description: Eastern Alaska, Yukon, Mackenzie region, Yukon-Tanana upland Comments: Orogen, magmatic arc/suite; Wilson & Hults, unpublished compilation, 2007-08 Lithology: Sandstone, siltstone, shale; marine fossils; metamorphosed equivalent Reference: J.C. Harrison, M.R. St-Onge, O.V. Petrov, S.I. Strelnikov, B.G. Lopatin, F.H. Wilson, S. Tella, D. Paul, T. Lynds, S.P. Shokalsky, C.K. Hults, S. Bergman, H.F. Jepsen, and A. Solli. Geological map of the Arctic. doi:10.4095/287868. Geological Survey of Canada Map 2159A. [2] |
Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License
References
