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Unnamed Occurrence (ARDF - ID050; on hill 935), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - ID050; on hill 935) | - not defined - |
| Iditarod Mining District | Mining District |
| Yukon-Koyukuk Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
62° 39' 46'' North , 158° 17' 34'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This occurrence is on hill 935 in the SE1/4 SW1/4, section 28, T. 30 N., R. 49 W., of the Seward Meridian. The location is accurate.
Geology: This occurrence is in vuggy silicified rhyolite of the Upper Cretaceous to Early Tertiary, Yetna River volcanic field (Miller and Bundtzen, 1994; Miller, Bundtzen, and Gray, 2005). A grab sample of iron-stained rhyolite contained 10.0 parts per million (ppm) silver, 500 ppm lead, and 20 ppm tin (McGimsey and others, 1988).
Workings: Surface sampling was conducted by the U.S. Geological Survey in 1984 (McGimsey and others, 1988).
Age: Unknown; the Yetna River volcanic field is Late Cretaceous to Tertiary (58-68 Ma) in age (Miller and Bundtzen (1994).
Alteration: Silicification.
Commodities (Major) - Ag, Pb; (Minor) - Sn
Development Status: None
Deposit Model: May be a tin-granite-type deposit (Miller and Bundtzen, 1994; Bundtzen and Mill
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: | ID050 |
|---|
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