Unnamed Occurrence (ARDF - WI052; east of upper Midas Creek), Koyukuk Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - WI052; east of upper Midas 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° 15' 34'' North , 152° 13' 58'' West
Latitude & Longitude (decimal):
Köppen climate type:
Mindat Locality ID:
201925
Long-form identifier:
mindat:1:2:201925:6
GUID (UUID V4):
84446d9a-b041-45e9-8c04-8eaf2c403580
Location: This occurrence is located about 6 miles south of the junction of Midas and Sixtymile Creeks. It is at an elevation of about 3,400 feet, 0.1 mile southeast of the top of hill 3567, in section 8, T. 28 N., R. 21 W., of the Fairbanks Meridian. The occurrence is the site of sample 82 in Dillon and others (1981 [AOF 133B]). The location is accurate.
Geology: This occurrence consists of skarn mineralization in calcareous schist near an intrusive (Dillon and others, 1981 [AOF 133B]). A chip sample of the mineralized rock contains 3000 ppm zinc, more than 50 ppm tungsten, 700 ppm tungsten, 7-- ppm tin, 500 ppm arsenic, 50 ppm bismuth, 700 ppm boron, and 20% iron. The rocks in the vicinity are Devonian chloritic and carbonate rocks and Devonian, Ambler metavolcanics and metabasite (Dillon and others, 1986).
Workings: Only surface sampling.
Commodities (Major) - Zn; (Minor) - As, B, Bi, Sn, W
Development Status: None
Deposit Model: Sn skarn deposit (?) (Cox and Singer, 1986; model 14b)
Commodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.List of minerals for each chemical element
Other Databases
| Link to USGS - Alaska: | WI052 |
|---|
Other Regions, Features and Areas containing this locality
North America
- Brooks RangeMountain Range
- Rocky MountainsMountain Range
North America PlateTectonic Plate
- Brooks Range DomainDomain
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References
