Tiglukpuk Creek Occurrence, Colville Mining District, North Slope Borough, Alaska, USA i
Regional Level Types
Tiglukpuk Creek Occurrence Occurrence
Colville Mining District Mining District
North Slope Borough Borough
Alaska State
USA Country

Location: Deposits on a small tributary of Skimo Creek and on Tiglukpuk Creek. Within one mile.
Geology: Phosphate deposits restricted to black chert and shale unit of the Alapha Limestone of late Mississippian age. Phosphate rock and phosphorites occur within a section of interbedded oolitic to pisolitic limestone, chert, and shale. Marked variation in lithologic character of phosphate content. Fluorite was a constituent of all samples studied.
Workings: A 36 ft thick sequence averages 8% P2O5; a 43 in. thick sequence averages 21% P2O5; and 6 beds, none more than 5.5 in. thick, contain 30% P2O5. Samples analyzed for vanadium contained .04% - .10% V2O5. Samples collected by USBM contained up to 23% phosphate with 1035 ppm V.
Age: Mississippian

Commodities (Major) - P; (Minor) - V
Development Status: No
Deposit Model: Bedded phosphorite

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

ⓘ Vanadium

Mineral List

ⓘ Fluorapatite

1 valid mineral.

Detailed Mineral List:

ⓘ Fluorapatite

Formula: Ca₅(PO₄)₃F

References:

(2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. US Geological Survey

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Fluorapatite	8.BN.05	Ca₅(PO₄)₃F

List of minerals for each chemical element

O	Oxygen
O	ⓘ Fluorapatite	Ca₅(PO₄)₃F
F	Fluorine
F	ⓘ Fluorapatite	Ca₅(PO₄)₃F
P	Phosphorus
P	ⓘ Fluorapatite	Ca₅(PO₄)₃F
Ca	Calcium
Ca	ⓘ Fluorapatite	Ca₅(PO₄)₃F

Other Databases

Link to USGS - Alaska:	CL002

Other Regions, Features and Areas containing this locality

North AmericaContinent

Brooks RangeMountain Range
Rocky MountainsMountain Range

North America PlateTectonic Plate

Brooks-Northslope Mag DomainDomain
Colville Basin and FoldbeltBasin

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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. 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. Meyer, M.P., 1994, Analytical results from U.S. Bureau of Mines investigations in the Colville Mining District, Alaska: U.S. Bureau of Mines Open-File Report 34-94, 137 p. 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. Patton, W.W., Jr., and Tailleur, I.L., 1964, Geology of the upper Killik-Itkillik region, Alaska: U.S. Geological Survey Professional Paper 303-G, p. 409-500.

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