Unnamed Occurrence (ARDF - ID094; north bank of Beaver Creek), Innoko Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - ID094; north bank of Beaver Creek) | - not defined - |
| Innoko Mining District | Mining District |
| Yukon-Koyukuk Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
62° 40' 5'' North , 156° 11' 2'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This occurrence is at an elevation of about 800 feet on a steep bluff about 0.5 mile north of Beaver Creek. It is about 1.0 mile southwest of hill 1170, about 0.8 mile east-southeast of hill 985, and bout 0.2 mile west of the northeast corner of section 27, T. 30 N., R. 37 W., of the Seward Meridian. The location is accurate.
Geology: This occurrence consists of quartz stringers in an altered felsic(?) dike that cuts shale and sandstone of the Upper Cretaceous, Kuskokwim Group (Miller and Bundtzen, 1994; Miller, Bundtzen, and Gray, 2005). Grab samples contain up to 1.00 percent arsenic, more than 10.0 parts per million (ppm) mercury, 200 ppm tungsten, 100 ppm lead, 1,000 ppm chromium, and 120 ppm zinc (McGimsey and others, 1988).
Workings: The site was sampled by the U.S. Geological Survey in 1984 (McGimsey and others, 1988).
Age: Unknown; the dike is undated.
Alteration: Silicification.
Commodities (Major) - Hg, W; (Minor) - As, Cr, Pb, Zn
Development Status: None
Deposit Model: Polymetallic vein? (Cox and Singer, 1986; model 22c).
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
1 valid mineral.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
Other Databases
| Link to USGS - Alaska: | ID094 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Farewell buried DomainDomain
- Farewell TerranePassive Margin
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