Unnamed Occurrence (ARDF - WI051; northeast of Ernie Lake), Koyukuk Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - WI051; northeast of Ernie Lake) | - not defined - |
| Koyukuk Mining District | Mining District |
| Yukon-Koyukuk Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
67° 25' 26'' North , 152° 51' 32'' West
Latitude & Longitude (decimal):
Köppen climate type:
See also: Buzz (WI047); Ann (WI034).
Location: This occurrence is located about 4 miles northeast of Ernie Lake. The occurrence is at an elevation of about 1,700 meters, about 0.2 mile west-southwest of the center of section 14, T. 30 N., R. 24 W., of the Fairbanks Meridian. The occurrence is the site of sample 55 of Dillon and others (1981 [AOF 133B]). The location is accurate.
Geology: This occurrence consists of maroon, felsic schist that contains 5% oxidized sulfides (Dillon and others, 1981 [AOF 133B]). The sulfides are principally pyrite and sphalerite, and possibly galena. A rock sample contains 350 ppm Zn. The rocks in the area are Devonian, Skajit Limestone, a few miles south of the Earnie Lake pluton (Dillon and others, 1986). No other information is available.
Workings: Only surface sampling.
Alteration: Oxidation of sulfide minerals.
Commodities (Major) - Zn; (Minor) - Pb(?)
Development Status: None
Deposit Model: Polymetallic replacement deposit (?) (Cox and Singer, 1986; model 19a)
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsGallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Galena ? | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS - Alaska: | WI051 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Brooks RangeMountain Range
- Rocky MountainsMountain Range
North America PlateTectonic Plate
- Brooks Range DomainVolcanic Arc
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