Roosevelt Creek Mine, Bonnifield Mining District, Denali Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Roosevelt Creek Mine | Mine |
| Bonnifield Mining District | Mining District |
| Denali Borough | Borough |
| Alaska | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
64° 3' 35'' North , 148° 9' 46'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Location: The Roosevelt mine is located somewhere in the center of T. 10 S., R. 3 W., Fairbanks Meridian. The exact location of the site that was mined is uncertain, and the coordinates are at about the mid-point of the creek. The actual location of mining may vary by a mile or more from the coordinates. This mine is locality 76 of Cobb (1972 [MF 410]).
Geology: The upper part of the valley of Roosevelt Creek is eroded in thick Nenana Gravel, but the lower part of the valley is eroded to a depth of 100 feet or more into interbedded clay, sand, gravel, and coal of the Tertiary Grubstake Formation (Wahrhaftig, 1970 [GQ-809]). Gold is found in the basal 2 feet of stream gravel (Maddren, 1918, p. 400). Placer gold in the creek is fine, flat, and well-worn (Prindle, 1907, p. 210-211). Mining was reported in 1910 and 1916 (Capps, 1912, p. 44; Maddren, 1918, p. 399).
Workings: Small-scale placer mining was reported in 1910 and 1916 (Capps, 1912, p. 44; Maddren, 1918, p. 399-400).
Age: Quaternary placer.
Production: Small scale placer mining was reported in 1910 and 1916,but there is no information available of the amount of production (Capps, 1912, p. 44; Maddren, 1918, p. 399-400).
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.
Gallery:
Other Databases
| Link to USGS - Alaska: | FB147 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Nenana BasinBasin
- North America PlatformPassive Margin
- Yukon-Tanana lower DomainDomain
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
