Shungnak Rivers; Shingnek Creek Mine, Shungnak Mining District, Northwest Arctic Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Shungnak Rivers; Shingnek Creek Mine | Mine |
| Shungnak Mining District | Mining District |
| Northwest Arctic Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
67° 1' 51'' North , 157° 14' 5'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Concentrates mainly magnetite along with rare nuggets of copper and silver (Anderson, 1945, p. 24-46).
Location: Located in canyon between Bismark Mountain and Shungnak Mountain near confluence with Bismark Creek in T. 19 N., R. 7 E., Kateel River Meridian. Shown as locality 19 in Mayfield and Grybeck (1978). Accurate to within 1000 ft. (300 m).
Geology: Creek and bench placers. Creek gravels 1-3 ft. (0.3-1 m) deep in canyon; Au occurs in pockets in bedrock and lower 1 ft. (0.3 m) of gravel. Nephrite jade float along banks of river; nephrite and low-grade asbestos in greenstone and serpentine along river. Gold also occurs on false bedrock above Pleistocene till near confluence with Bismark Creek. Stream gravels are coarse, subangular with abundant boulders up to 3 ft. (1 m) in diameter.
Workings: Most of gravel is not frozen, in benches up to 25 ft. (9 m) above the river; prospect pits in gravel downstream from canyon did not reach bedrock; 40 ft. (13 m) drill hole in gravels below canyon did not reach bedrock (Reed, 1931, p. 15)
Production: Intermittent production during the period 1894 to 1940. May have produced as much as 10,000 oz (311 kg) of gold (Fritts, 1970, p. 54-55).
Commodities (Major) - Au; (Minor) - Ag, asbestos, Cu, jade
Development Status: Yes; small
Deposit Model: Placer
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.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ 'Asbestos' |
| ⓘ 'Ferro-actinolite-Tremolite Series' |
| ⓘ Native Copper Formula: Cu |
| ⓘ Native Silver Formula: Ag |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Copper | 1.AA.05 | Cu |
| ⓘ | Native Silver | 1.AA.05 | Ag |
| Unclassified | |||
| ⓘ | 'Asbestos' | - | |
| ⓘ | 'Ferro-actinolite-Tremolite Series' | - | |
List of minerals for each chemical element
Other Databases
| Link to USGS - Alaska: | AR009 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Brooks RangeMountain Range
- Rocky MountainsMountain Range
North America PlateTectonic Plate
- Angayucham TerraneAccretionary Complex
- Brooks Range DomainVolcanic Arc
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