Nugget Creek Mine, Eagle Mining District, Southeast Fairbanks Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Nugget Creek Mine | Mine |
| Eagle Mining District | Mining District |
| Southeast Fairbanks Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
64° 58' 20'' North , 142° 16' 12'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Location: Nugget Creek is a small south tributary of the Seventymile River. Gold-bearing placer deposits were mainly found along the lower mile of Nugget Creek. The coordinates are about one-half mile upstream of the mouth of the creek, in section 28, T. 2 N., R. 27 E., of the Fairbanks Meridian. The location is accurate. Nugget Creek is locality 18 (locality 19 on the map) of Cobb (1972 [MF-393]), locality 46 of Eberlein and others (1977), and locality 4 of Burleigh and Lear (1994).
Geology: The rocks on lower Nugget Creek are Paleozoic gneiss, schist, quartzite, amphibolite, and feldspathic gneiss (Clark and Foster, 1969; Foster, 1976). Upper Nugget Creek is crossed by strands of the Tintina Fault; the rocks consist of Permian quartzite and argillite that have been intruded by Tertiary to Mesozoic granitic to ultramafic plutonic rocks; Tertiary felsic volcanic rocks are also present (Foster, 1976). Gold placers are found mainly along the lower mile of the Nugget Creek (Mertie, 1938). The gravel has an average thickness of 4 feet; the pay was found over a width of 20 feet. (Prindle, 1905). Gold in Nugget Creek occurs as plates as much as one-quarter of an inch in diameter (Prindle, 1905). Placer concentrates contain minor black sand (magnetite?) and garnets (Prindle, 1905). An assay of placer gold from Nugget Creek contains 851 parts of gold and 143 parts of silver per thousand (Mertie, 1942). Two men were working on Nugget Creek in 1903 (Prindle, 1905). Mining on Nugget Creek was sporadically reported from 1908 to 1936. There has been placer gold production on the Seventymile River (see EA025) downstream of Nugget Creek.
Workings: Two men were working on Nugget Creek in 1903 (Prindle, 1905). Mining on Nugget Creek was sporadically reported from 1908 to 1936.
Age: Quaternary.
Commodities (Major) - Au
Development Status: Yes; small
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
1 valid mineral.
Detailed Mineral List:
| ⓘ Native Gold Formula: Au |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
List of minerals for each chemical element
| Au | Gold | |
|---|---|---|
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS - Alaska: | EA014 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Yukon-TananaVolcanic Arc
- Yukon-Tanana upper DomainDomain
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