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Unnamed Occurrence (ARDF - ID106; near Flat Airstrip), Iditarod District, Yukon-Koyukuk Borough, Alaska, USA

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Location: This occurrence is in the Otter Creek valley under the Flat airstrip which is about 0.7 mile east of the center of Flat. It is in the SE1/4 SE1/4, section 4, T. 27 N., R. 47 W., of the Seward Meridian. The location is accurate.
Geology: This occurrence is a series of cinnabar-quartz veins. According to Ken Dahl (oral communication, 1984), the North American Dredging Company dredged thin but high grade cinnabar-quartz veins during mining here. There was a consistent north-trending orientation to the mineralized zone, but the dip of the veins is unknown (Bundtzen and others, 1992). The site is currently covered by the Flat airstrip. However, clasts of high- grade cinnabar-quartz vein material were noted in dredge tailing piles essentially where Ken Dahl estimated the location of the vein (T.K. Bundtzen, unpublished field data, 1985).
Workings: According to Ken Dahl (oral communication, 1984), the North American Dredging Company dredged thin but high grade cinnabar-quartz veins during mining here. The site is currently covered by the Flat airstrip. However, clasts of high- grade cinnabar-quartz vein material were noted in dredge tailing piles essentially where Ken Dahl estimated the location of the veins (T.K. Bundtzen, unpublished field data, 1985).

Commodities (Major) - Hg
Development Status: None
Deposit Model: Hot springs Hg? (Cox and Singer, 1986; model 27a).

Mineral List



2 entries listed. 2 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

Bundtzen, T.K., Miller, M.L., Laird, G.M., and Bull, K.F., 1992, Geology and mineral resources of Iditarod mining district, Iditarod B-4 and eastern B-5 quadrangles, southwestern Alaska: Alaska Division of Geological and Geophysical Surveys Professional Report 97, 46 p., 2 sheets, scale 1:63,360. Miller, M.L., Bundtzen, T.K., and Gray, J.E., 2005, Mineral resource assessment of the Iditarod quadrangle, west-central Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-2219-B, scale 1:250,000, pamphlet.

Mineral and/or Locality  
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