American; American Eagle; Perrault; Perrault and Murphy Mine, Fairbanks Mining District, Fairbanks North Star Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| American; American Eagle; Perrault; Perrault and Murphy Mine | Mine |
| Fairbanks Mining District | Mining District |
| Fairbanks North Star Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
64° 58' 51'' North , 147° 19' 26'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Fox | 417 (2011) | 14.1km |
| Two Rivers | 719 (2011) | 18.1km |
| Farmers Loop | 4,853 (2017) | 19.4km |
| Badger | 19,482 (2011) | 22.4km |
| Pleasant Valley | 725 (2011) | 24.1km |
Location: The American mine is located in the SE1/4SW1/4 sec. 22, T. 2 N., R. 2. E., Fairbanks Meridian, in the saddle on the divide between Victoria Creek, a tributary of Smallwood Creek, and Pearl Creek, a tributary of Fish Creek. It is about 1 mile east of Gilmore Dome. The mine is locality 35 of Cobb (1972 [MF 410]).
Geology: By 1913, several tons of ore had been mined from an 18-inch- to 4-foot-wide vein that carried approximately 1.2 ounces of gold per ton (Smith, 1913 [B 525, p. 166]). The gold-quartz vein contained very few sulfides and was oriented N. 50 E., 60 NW. (Chapin, 1914,B[ 592, p. 329-330]). The footwall is a zone of schist, 3 feet wide, that contains small quartz stringers; gold could be panned from most random samples of the quartz (Chapin, 1914 [B 592-J]). This mine lies on the western edge of a Cretaceous granite that intrudes two units of the Fairbanks Schist that are composed of (1) quartz-muscovite schist, quartzite, and chlorite-quartz schist, and (2) amphibolite, magnetite-rich biotite schist, quartz schist, and marble (Newberry and others, 1996). By 1931, the workings were inaccessible, but the material on the dumps was examined and consisted of brecciated schist partly cemented by quartz (Hill, 1933).
Workings: In 1914, an inclined shaft was 60 feet deep (Chapin, 1914, B 592-J, p. 329-330). By 1931, the workings were inaccessible (Hill, 1933).
Production: In 1911, twenty tons of ore, with a grade of 1.21 ounces of gold per ton, were mined from a 38-foot shaft on the American Eagle claim. There is no record of production after 1913 when several tons of ore were mined (Smith, 1913 [B 525]).
Commodities (Major) - Au
Development Status: Yes; small
Deposit Model: Schist-hosted gold-quartz vein
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.
Gallery:
Other Databases
| Link to USGS - Alaska: | FB120 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- North America PlatformPassive Margin
- Yukon-Tanana lower DomainDomain
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