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Okpilak River Occurrence, Canning Mining District, North Slope Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Okpilak River Occurrence | Occurrence |
| Canning Mining District | Mining District |
| North Slope Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
69° 18' 0'' North , 144° 1' 12'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Location: Accurate to within 1.6 kilometers (1 mi). Grybeck, 1977, p. 40, Location 13.
Geology: Fluorite, molybdenite and (?)yttrocerite occur in samples of granite of Okpilak batholith. Representative sample in peripheral zone of granite contains 50 ppm eU. Heavy mineral fractions of concentrates contain 0.034-0.080% eU and 0.010-0.033% U.
Workings: None
Age: Probably Early Devonian
Commodities (Major) - Mo, U; (Minor) - F, possibly Rare Earth Elements
Development Status: No
Deposit Model: Disseminated, felsic-hosted
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
2 valid minerals.
Detailed Mineral List:
| ⓘ Fluorite Formula: CaF2 |
| ⓘ Fluorite var. Yttrocerite Formula: (Ca,Y,Ce)F2+x |
| ⓘ Molybdenite Formula: MoS2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Molybdenite | 2.EA.30 | MoS2 |
| Group 3 - Halides | |||
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| ⓘ | var. Yttrocerite | 3.AB.25 | (Ca,Y,Ce)F2+x |
List of minerals for each chemical element
| F | Fluorine | |
|---|---|---|
| F | ⓘ Fluorite | CaF2 |
| F | ⓘ Fluorite var. Yttrocerite | (Ca,Y,Ce)F2+x |
| S | Sulfur | |
| S | ⓘ Molybdenite | MoS2 |
| Ca | Calcium | |
| Ca | ⓘ Fluorite | CaF2 |
| Ca | ⓘ Fluorite var. Yttrocerite | (Ca,Y,Ce)F2+x |
| Y | Yttrium | |
| Y | ⓘ Fluorite var. Yttrocerite | (Ca,Y,Ce)F2+x |
| Mo | Molybdenum | |
| Mo | ⓘ Molybdenite | MoS2 |
| Ce | Cerium | |
| Ce | ⓘ Fluorite var. Yttrocerite | (Ca,Y,Ce)F2+x |
Other Databases
| Link to USGS - Alaska: | ML015 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Brooks RangeMountain Range
- Rocky MountainsMountain Range
North America PlateTectonic Plate
- Colville Basin and FoldbeltBasin
- North SlopePassive Margin
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