Latitude: 68°18'N
Longitude: 151°42'W
Location: Known to within 1 mile.
Geology: Phosphate occurs in a sequence of black chert, lenticular dark siltstone, dark brittle shale, and oolitic phosphate rock that is probably part of the black chert and shale unit of the Alapha limestone. The deposit occurs on a thrust plate overlying the Siksikpuk formation.
Workings: 27.9% P2O5; .020% EU.; Field station 50 AKe279
Age: Mississippian
Commodities (Major) - P2O5
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.
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