Latitude: 68°18'N
Longitude: 152°30'W
Location: Known to within 1 mile.
Geology: Samples are of black, medium to coarsely oolitic phosphate rock from (probably) near the top of the Alapha Limestone. Phosphatic pellets, partly replaced by calcite, are in the calcite matrix. Purple fluorite occurs in and around the edges of phosphatic pellets and in veinlets in calcite.
Workings: Sample contained 25.6% P2O5, 0.02% V2O5, and 0.009% equiv. U; Field location 45 AGr21
Age: Mississippian
Commodities (Major) - P; V; (Minor) - V
Development Status: No
Deposit Model: Bedded phosphorite
References
Cobb, E.H., 1975, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in northern Alaska: U.S. Geological Survey Open-File Report 75-628, 106 p. Grybeck, Donald, 1977, Map showing known mineral deposits of the Brooks Range, Alaska: U.S. Geological Survey Open-File Report 77-166-C, 45 p., 1 sheet, scale 1:1,000,000. Patton, W.W., Jr., and Matzko, J.J., 1959, Phosphate deposits in northern Alaska: U.S. Geological Survey Professional Paper 302-A, p. 1-17. Wedow, Helmuth, Jr., White, M.G. and Moxham, R.M., 1952, Interim report on an appraisal of the uranium possibilities of Alaska: U.S. Geological Survey Open-File Report 51, 123 p.
Mineral List
3 entries listed. 3 valid minerals.
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