Unnamed Occurrence (ARDF - GU042; east; southeast of Mankomen Lake), Chistochina Mining District, Valdez-Cordova Census Area, Alaska, USAi
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Latitude & Longitude (WGS84):
62° 56' 13'' North , 144° 18' 54'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Slana | 147 (2011) | 31.2km |
Additional information can be obtained from Ahtna Minerals in Anchorage, Alaska.
Location: The occurrence is at an elevation of approximately 4,500 feet, about 6.4 miles east, southeast of the east end of Mankomen Lake. The occurrence is in the center of section 5, T. 13 N., R. 6 E., Copper River Meridian. It is probably accurate within 500 feet.
Geology: WGM Inc. (1979, fig. 6) reported an occurrence of magnetite and pyrite associated with the contact of the border phase of the Brimstone granite and the Pennsylvanian to Permian, Tetelna volcanics. A chilled zone of altered potassium-feldspar-rich rocks contains bands of disseminated pyrite and magnetite.
Alteration: Related to a contact zone of a granitic body.
Commodities (Major) - Fe
Development Status: None
Deposit Model: Skarn(?)
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
2 valid minerals.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Pyrite | FeS2 |
Other Databases
| Link to USGS - Alaska: | GU042 |
|---|
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