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Unnamed Occurrence (ARDF - WI013; south of Pet Lake), Koyukuk District, Yukon-Koyukuk Borough, Alaska, USA

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This occurrence is located within Gates of the Arctic National Park.
Location: This occurrence is about 1.3 miles south-southeast of the east end of Pet Lake. It is in a creek at an elevation of about 3,250 feet, 0.5 mile east of the top of hill 4116, in the SE 1/4 of section 12, T. 32 N., R. 20 W., of the Fairbanks Meridian. The occurrence is the site of sample 348 in Dillon and others (1981). The location is accurate.
Geology: Dillon and others (1981, locality 348 [AOF 133B]) describe this occurrence as a mineralized layer 300 meters long and 5 to 250 cm thick, that is composed mainly of fine-grained quartz that contains chalcopyrite, and sparse cuprite and sphalerite. A single chip sample from outcrop contains 2% copper, more than 100 ppm antimony, and 20 ppm zinc. The rocks in the area are Devonian, Skajit Limestone and Middle or Upper Devonian black phyllite, dark limestone, and conglomerate (Dillon and others, 1986).
Workings: Only surface sampling.

Commodities (Major) - Cu, Sb, Zn
Development Status: None
Deposit Model: Polymetallic replacement deposit (?) (Cox and Singer, 1986; model 19a)

Mineral List



4 entries listed. 4 valid minerals.

The above list 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.

References

Bliss, J.D., Brosg

 
Mineral and/or Locality  
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