Kiruktagiak River Occurrence, Colville Mining District, North Slope Borough, Alaska, USAi
Regional Level Types | |
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Kiruktagiak River Occurrence | Occurrence |
Colville Mining District | Mining District |
North Slope Borough | Borough |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
68° 22' 48'' North , 152° 54' 0'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Mindat Locality ID:
198379
Long-form identifier:
mindat:1:2:198379:4
GUID (UUID V4):
e2efbea5-35f2-46af-a41e-e67ec34bb9eb
Location: Located on west side of upper Kiruktagiak River, 450-1200 m above mouth of Monitis Creek. Known to within one mile.
Geology: Phosphate deposits are restricted to 40 ft. black shale and chert horizon of the Alapha Limestone of late Mississippian age. Rocks of phosphitic zone are chiefly a mixture of phosphatic material, Ca CO3, silt, and clay; in some places secondary purple fluorite is on bedding surfaces and in veinlets. Phosphatic material occurs as pellets (oolites) as much as 10 mm long and are composed of carbonate-fluorapatite. There are marked lateral variations in lithologic character and phosphate content. On the Kiraktagiak River and Monotis Creek, measured sections indicate that the phosphatic units are either lenticular or displaced by small folds and faults.
Workings: A 38 ft. thick zone of chert and shale unit in the Mississippian Alapha limestone contains an average of 12% P2O5; The upper 19 ft. averages 19% P2O5. A 27 inch thick sequence contains 27% P2O5. Samples analyzed for vanadium contained 0.07%-0.49% V2O5. Highest uranium content was 0.21% U. Samples collected by the USBM contained up to 20.6% phosphate.
Age: Mississippian
Commodities (Major) - P; (Minor) - V, U
Development Status: No
Deposit Model: Bedded phosphorite
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
6 valid minerals.
Detailed Mineral List:
β Calcite Formula: CaCO3 |
β Dolomite Formula: CaMg(CO3)2 |
β Fluorapatite Formula: Ca5(PO4)3F |
β Fluorite Formula: CaF2 |
β Quartz Formula: SiO2 |
β Vanadinite Formula: Pb5(VO4)3Cl |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 3 - Halides | |||
---|---|---|---|
β | Fluorite | 3.AB.25 | CaF2 |
Group 4 - Oxides and Hydroxides | |||
β | Quartz | 4.DA.05 | SiO2 |
Group 5 - Nitrates and Carbonates | |||
β | Calcite | 5.AB.05 | CaCO3 |
β | Dolomite | 5.AB.10 | CaMg(CO3)2 |
Group 8 - Phosphates, Arsenates and Vanadates | |||
β | Fluorapatite | 8.BN.05 | Ca5(PO4)3F |
β | Vanadinite | 8.BN.05 | Pb5(VO4)3Cl |
List of minerals for each chemical element
C | Carbon | |
---|---|---|
C | β Calcite | CaCO3 |
C | β Dolomite | CaMg(CO3)2 |
O | Oxygen | |
O | β Calcite | CaCO3 |
O | β Dolomite | CaMg(CO3)2 |
O | β Fluorapatite | Ca5(PO4)3F |
O | β Quartz | SiO2 |
O | β Vanadinite | Pb5(VO4)3Cl |
F | Fluorine | |
F | β Fluorapatite | Ca5(PO4)3F |
F | β Fluorite | CaF2 |
Mg | Magnesium | |
Mg | β Dolomite | CaMg(CO3)2 |
Si | Silicon | |
Si | β Quartz | SiO2 |
P | Phosphorus | |
P | β Fluorapatite | Ca5(PO4)3F |
Cl | Chlorine | |
Cl | β Vanadinite | Pb5(VO4)3Cl |
Ca | Calcium | |
Ca | β Calcite | CaCO3 |
Ca | β Dolomite | CaMg(CO3)2 |
Ca | β Fluorapatite | Ca5(PO4)3F |
Ca | β Fluorite | CaF2 |
V | Vanadium | |
V | β Vanadinite | Pb5(VO4)3Cl |
Pb | Lead | |
Pb | β Vanadinite | Pb5(VO4)3Cl |
Other Databases
Link to USGS - Alaska: | CL004 |
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Other Regions, Features and Areas containing this locality
North America
- Brooks RangeMountain Range
- Rocky MountainsMountain Range
North America PlateTectonic Plate
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