Unnamed Occurrence (ARDF - BN036; along Kougarok River), Kougarok Mining District, Nome Census Area, Alaska, USAi

Regional Level Types
Unnamed Occurrence (ARDF - BN036; along Kougarok River)	- not defined -
Kougarok Mining District	Mining District
Nome Census Area	Census Area
Alaska	State
USA	Country

Location: This location is for bedrock exposures in old placer workings on the west side of the former cummunity of Taylor. Taylor is located at the end of the Nome-Taylor road, on the west bank of Kougarok River, about 1,000 feet south of the mouth of Taylor Creek. This is locality 6 of Gamble (1988)
Geology: Graphitic metasedimentary rocks, exposed in old placer workings, contain numerous hydrothermally altered zones with fractured quartz veinlets and abundant pyrite (Sainsbury and others, 1969, p. 30). A sample of ribbon quartz contained 200 ppm As and a pyrite-rich pan concentrate from the altered zones contained 1.3 ppm Au, 2 ppm Ag, greater than 10,000 ppm As, 750 ppb Hg, 200 ppm Co, and weakly elevated base metals (Sainsbury and others, 1969, p. 39).
Workings: The only workings here are from placer mining, including those from dragline operations.
Age: Unknown but possibly Cretaceous; if gold-bearing lode structures are present here they may be similar in age to some lode gold deposits of southern Seward Peninsula. The southern Seward Peninsula lode gold deposits formed as a result of mid-Cretaceous metamorphism (Apodoca, 1994; Ford, 1993, Ford and Snee, 1996; Goldfarb and others, 1997) that accompanied regional extension (Miller and Hudson, 1991) and crustal melting (Hudson, 1994). This higher temperature metamorphism was superimposed on high pressure/low temperature metamorphic rocks of the region.
Alteration: Quartz veining and possibly clay alteration appear to be present.

Commodities (Major) - Au
Development Status: None
Deposit Model: Gold-bearing quartz veins and schist (?)

Other Databases

Link to USGS - Alaska:	BN036

Other Regions, Features and Areas containing this locality

References