Clums Fork Prospect, Circle Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Clums Fork Prospect | Prospect |
| Circle Mining District | Mining District |
| Yukon-Koyukuk Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
65° 6' 0'' North , 145° 27' 21'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Location: The location is along Volcano Creek, a tributary of the Clums Fork, in the SE1/4 SE1/4 sec. 2, T. 3 N., R. 11 E. Clums Fork is a tributary of Birch Creek.
Geology: Diamonds ranging from 0.10 to 0.98 carats were recovered from placer operations on Volcano Creek, a few hundred feet downslope of the 'Crazy-8' possible lamproite structure. These alluvial diamonds have sharp edges and lack abrasions, which may indicate that they did not travel far from their source. Subsequent invesigations revealed G3 and G5 garnets, plus zircons which may indicate a lamproite source (The Mining Record, April 13, 1994).
Workings: Reverse circulation drilling and trenching occurred in 1993 and 1994 (The Mining Record, July 6, 1994, p. 3).
Commodities (Major) - Diamond
Development Status: None
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: | CI012 |
|---|
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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