Unnamed Occurrence (ARDF - TK070; southwest of VABM Iron), Yentna Mining District, Matanuska-Susitna Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - TK070; southwest of VABM Iron) | - not defined - |
| Yentna Mining District | Mining District |
| Matanuska-Susitna Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
62° 20' 34'' North , 149° 28' 26'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Y | 1,260 (2011) | 28.1km |
Location: This occurrence is at an elevation of about 3,000 feet on a hillside northeast of Sheep Creek. It is 5 miles west of Rainbow Lake and 1.9 miles southwest of VABM Iron. The location is accurate to within 1/2 mile.
Geology: This occurrence consists of dark red to yellow, pyrite-bearing gossan in Paleozoic(?) mafic metavolcanic rocks. No ore minerals other than pyrite are visible (Csejtey and Miller, 1978). Rock samples contain up to 7,000 parts per million copper, 2,000 parts per million arsenic, 700 parts per million cobalt, 700 parts per million nickel, and 3 parts per million silver (Miller and others, 1978).
Workings: Limited surface sampling by the U.S. Geological Survey (Miller and others, 1978).
Alteration: Iron-oxide alteration.
Commodities (Major) - Ag, Co, Cu, Ni; (Minor) - As
Development Status: None
Deposit Model: Basaltic copper (Cox and Singer, 1986; model 23)
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
1 valid mineral.
Detailed Mineral List:
| ⓘ 'Limonite' |
| ⓘ Pyrite Formula: FeS2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
Other Databases
| Link to USGS - Alaska: | TK070 |
|---|
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