Unnamed Occurrence (ARDF - TK123; on a south tributary of Sheep River), Yentna Mining District, Matanuska-Susitna Borough, Alaska, USAi
Regional Level Types | |
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Unnamed Occurrence (ARDF - TK123; on a south tributary of Sheep River) | - not defined - |
Yentna Mining District | Mining District |
Matanuska-Susitna Borough | Borough |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
62° 11' 11'' North , 149° 5' 42'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Sutton-Alpine | 1,447 (2015) | 48.6km |
Fishhook | 4,679 (2011) | 49.7km |
Buffalo Soapstone | 855 (2011) | 52.3km |
Mindat Locality ID:
201817
Long-form identifier:
mindat:1:2:201817:4
GUID (UUID V4):
2f517641-f9f1-4f74-b01d-e30e67670801
Location: This occurrence is at an elevation of about 1,500 feet, about 0.4 mile southwest of the junction of the Sheep River and its principal south tributary. It is in the NE1/4 sec. 9, T. 24 N., R. 2 E., Seward Meridian. The location is accurate to within 1/2 mile.
Geology: This occurrence consists of float of of altered mafic metavolcanic rocks and serpentinite(?). No sulfides are visible (Csejtey and Miller, 1978). Float samples of pyroxenite(?) contain up to 3,000 parts per million chromium, 500 parts per million nickel, 700 parts per million antimony, and 20 parts per million tin (Miller and others, 1978).
Workings: Only limited sampling by the U.S. Geological Survey (Miller and others, 1978).
Alteration: The mafic metavolcanic rocks are altered (Csejtey and Miller, 1978) but the type of alteration is not specified.
Commodities (Major) - Cr, Ni, Sb; (Minor) - Sn
Development Status: None
Deposit Model: Komatiitic Ni-Cu (Cox and Singer, 1986; model 6a)
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: | TK123 |
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Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Wrangellia DomainDomain
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