Alameda Creek Prospect, Koyuk Mining District, Nome Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Alameda Creek Prospect | Prospect |
| Koyuk Mining District | Mining District |
| Nome Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
65° 1' 48'' North , 161° 3' 0'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Koyuk | 342 (2017) | 12.0km |
Stream gradient approximately 50 feet per mile.
Location: Placer ground located east of headwaters of Alameda Creek. The map site is in section 23, T. 5 S., R. 12 W., of the Kateel River Meridian. Cobb, 1972 (MF-386), location 46.
Geology: This gold placer prospect occurs in a short section of Alameda Creek. The deposit apparently is in a paleochannel uncut by the present stream. The deposit was explored by shafts, from which a small amount of gold was recovered. Pan concentrates contained a little gold, much magnetite and some undecomposed sulfides. Gravel on bedrock contained about $0.01 per pan (gold at $20.67/ounce) (Smith and Eakin, 1911).
Workings: In the early 1900's one shaft was sunk 192 feet without reaching bedrock (Smith and Eakin, 1911). It was mainly in well-rounded quartz gravel. Another shaft hit lava at 32 feet. Gravel on bedrock contained about $0.01 per pan (gold at $20.67/ounce).
Age: Quaternary.
Production: Gold was too scarce to support mining operations in 1909.
Commodities (Major) - Au
Development Status: None
Deposit Model: Placer Au-PGE (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
2 valid minerals.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | Iron | |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
Other Databases
| Link to USGS - Alaska: | CA001 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Koyukuk-Selawik DomainDomain
- Koyukuk ArcsVolcanic Arc
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