Unnamed Occurrence (ARDF - SP021; north of Inyuilak Creek), Shungnak Mining District, Northwest Arctic Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - SP021; north of Inyuilak Creek) | - not defined - |
| Shungnak Mining District | Mining District |
| Northwest Arctic Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
67° 18' 39'' North , 154° 56' 56'' West
Latitude & Longitude (decimal):
Köppen climate type:
Located within Gates of the Arctic National Park.
Location: This site is at an elevation of about 4000 feet on a ridge 3 miles north of Inyuilak Creek. It is in the N1/2 of sec. 18, T. 22 N., R. 18 E., of the Kateel River Meridian. The location is accurate to within 1000 ft. The site corresponds to locality 44 of Grybeck and Nelson (1981).
Geology: This occurrence is a contact metamorphic deposit at the contact of Devonian granite and Paleozoic schist (Grybeck and Nelson, 1981). Selected samples contain up 5 ppm Ag, 100 ppm Bi, 1 percent Cu, 30 ppm Sn, and 700 ppm Zn. The deposit is related to intrusion of the granite and is similar to other contact-metamorphic deposits in the Brooks Range (Newberry and others, 1986).
Workings: Site briefly examined during regional geologic mapping by the USGS in the late 1970s.
Age: Devonian; related to the intrusion of Devonian pluton.
Commodities (Major) - Ag, Bi, Cu, Sn, Zn
Development Status: None
Deposit Model: Skarn (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: | SP021 |
|---|
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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