Unnamed Occurrence (ARDF - WI080; south of lower Michigan Creek), Koyukuk Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - WI080; south of lower Michigan Creek) | - 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° 16' 48'' North , 151° 17' 5'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This occurrence is south of lower Michigan Creek feet about 3 miles east-northeast of the junction of Michigan Creek and Wild River. The occurrence is at an elevation of 1,850 feet about 0.5 mile west-northwest of the center of section 3, T. 28 N., R. 17 W., of the Fairbanks Meridian. The location is accurate.
Geology: This occurrence consists of sulfide-bearing quartz veins and sulfides disseminations in greenschist. Dillon and others (1981, samples 52 and 402 [AOF 133B]) collected two samples of greenschist, one with thin quartz and pyrite veins, and one containing disseminated pyrite and traces of sphalerite in veins. One sample contained 500 ppm arsenic. The rocks in the vicinity consist of metabasite (Dillon and others, 1986).
Workings: Only surface sampling.
Commodities (Major) - Zn; (Minor) - As
Development Status: None
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
3 valid minerals.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
Other Databases
| Link to USGS - Alaska: | WI080 |
|---|
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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