Unnamed Occurrence (ARDF - PS015; southwest of Atigun River Gorge), Canning Mining District, North Slope Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - PS015; southwest of Atigun River Gorge) | - not defined - |
| Canning Mining District | Mining District |
| North Slope Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
68° 28' 11'' North , 149° 14' 23'' West
Latitude & Longitude (decimal):
Köppen climate type:
Barium in concentrations [more than] 5,000 ppm was found in heavy-mineral concentrate samples throughout the quadrangle (Menzie and others, 1985). The region also contains rock types which are considered permissive for the occurrence of stratabound barite deposits (Menzie and others, 1985).
Location: Site is at an elevation of about 2,600 ft. on the south side of the Atigun River canyon about 4 1/2 miles east of Galbraith Lake (SE1/4 sec. 23, T. 11 S., R. 12 E., of the Umiat Meridian). Location accurate within 1-mile radius.
Geology: Minor amounts of pervasive barite, typically in scattered concretionary clusters and solid silica-centered nodules, is reported in the Permian - Lower Triassic Sadlerochit Group (Menzie and others, 1985). In the Atigun Canyon, a 5-meter-thick zone contains an estimated 10-15% barite. Bundtzen and Henning (1978) describe the barite in the Atigun canyon as zones of nodules and layers within a black sideritic shale horizon in the Permian Siksikpuk Formation. The zones pinch and swell within the shale horizon. The barite is reportedly in the form of prismatic and tabular crystals as long as 3 inches, and black shale fragments are found throughout the barite. No base metals have been noted associated with this barite occurrence. Minor amounts of barite also occur locally in the Philip Smith Mountains quadrangle in the Triassic Shublik Formation and possibly in the Jurassic Kingak Shale (Menzie and others, 1985).
Workings: Results from analysis of a sample from this location showed values of 2 ppm Ag and 1,500 ppm Ba (Cathrall and others, 1977; sample number 76BE403B).
Commodities (Major) - BaSO4
Development Status: None
Deposit Model: Bedded barite (?) (Cox and Singer, 1986; model 31b).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsGallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
|---|---|---|---|
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Baryte | BaSO4 |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
Other Databases
| Link to USGS - Alaska: | PS015 |
|---|
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
- North SlopePassive Margin
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