Uhler Creek Mine, Southeast Fairbanks Census Area, Alaska, USAi

Regional Level Types
Uhler Creek Mine	Mine
Southeast Fairbanks Census Area	Census Area
Alaska	State
USA	Country

Location: Uhler Creek drains west into the South Fork of the Fortymile River. Placer tailings are shown on the U.S. Geological Survey 1:63,360-scale topographic map of the Eagle A-2 quadrangle (1956; revised in 1971); the tailings start about 3.7 miles east of the mouth and extend for approximately 1 mile. The coordinates correspond to the midpoint of the tailings, in section 20, T. 8 S., R. 31 E., of the Fairbanks Meridian; the location is accurate. This site is locality 66 of Burleigh and Lear (1994), locality 61 of Eberlein and others (1977), and locality 57 of Cobb (1972 [MF-393]).
Geology: The rocks in Uhler Creek are Paleozoic amphibolite-facies gneiss, amphibolite, amphibolite-feldspar gneiss, and marble (Werdon and others, 2001). The metamorphic rocks have been intruded by several plutonic bodies, including the Uhler pluton, which has a hornblende 40Ar/39Ar plateau age of 188.0 +/- 1.0 Ma, and the Napoleon pluton (see EA115), which has a hornblende 40Ar/39Ar plateau age of 186.5 +/- 1.3 Ma (Layer and others, 2002). These units have been offset by several north-south-trending high-angle faults. Small-scale placer mining occurred on Uhler Creek in the early 1900's and the 1960's, 1970's, and early 1990's (Eberlein and others, 1977; Swainbank and others, 1993).
Workings: Small-scale placer mining occurred on Uhler Creek in the early 1900's and in the 1960's, 1970's, and early 1990's (Eberlein and others, 1977; Swainbank and others, 1993).
Age: Quaternary.

Commodities (Major) - Au
Development Status: Yes; small
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a).

Other Databases

Link to USGS - Alaska:	EA112

Other Regions, Features and Areas containing this locality

References