|Quadrangle map, 1:250,000-scale||CL|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Located along both sides of Monitis Creek, 600 m above junction with Kiruktagiak River. Known to within one mile.|
Geologic descriptionThe phosphate occurrences are confined to the black chert and shale member of the Alapah Limestone. Interbedded phosphorite and phosphate rock occur in sections up to 11.3 m thick. The phosphate-bearing mineral consists of fluorapatite, which is concentrated in oolites, pellets, and matrix. Purple fluorite occurs locally. The phosphatic rocks can be traced for 1.5 km along strike.
|Geologic map unit||(-152.882856073889, 68.3795639805041)|
|Mineral deposit model||Bedded phosphorite (Cox and Singer, 1986; model 23c).|
|Mineral deposit model number||34c|
|Age of mineralization||Mississippian.|
|Workings or exploration||Individual phosphorites up to 0.6 m thick contain up to 330 percent P2O5. One 6.7 m-thick section averaged 23 percent P2O5. Samples also contained up to 2,000 ppm V, and 119 ppm U.|
|Indication of production||None|
Kurtak, J.M., Meyer, M.P., Hicks, R.W., Werdon, M.B., and Mull, C.G., 1995, Mineral investigations in the Colville Mining District and southern National Petroleum Reserve in Alaska: U.S. Bureau of Mines Open-File Report 8-95, 217 p., 1 sheet, scale 1:250,000.
|Last report date||2/7/1997|