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Clums Fork Prospect, Circle District, Yukon-Koyukuk Borough, Alaska, USA

Latitude: 65°6'0"N
Longitude: 145°27'21"W
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

References

The Mining Record, April 13, 1994; The Mining Record, July 6, 1994.

Mineral List

Diamond


1 entry listed. 1 valid mineral.

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Copyright © Jolyon Ralph and Ida Chau 1993-2011. Jobs in Alaska, USA Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 20th Jun 2011 18:18:32
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