Unnamed Occurrence (ARDF - ID066; east of Dishna River), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - ID066; east of Dishna River) | - 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° 44' 45'' North , 157° 26' 16'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This occurrence is at an elevation of about 1,200 feet on a north-trending bluff overlooking the Dishna River. It is about 0.8 mile northwest of hill 1224 and about 0.4 mile northwest of the southeast corner of section 25, T. 31 N., R. 43 W., of the Seward Meridian. The location is accurate.
Geology: This occurrence is a pervasive, silicified zone in an altered dike of intermediate composition that cuts shale and sandstone of the Upper Cretaceous, Kuskokwim Group (Miller, and Bundtzen, 1994; Miller, Bundtzen, and Gray, 2005). No size or orientation information is available. One sample collected contained 200 parts per billion (ppb) gold and 280 ppb mercury (Bundtzen, Laird, and Lockwood, 1988).
Workings: The Alaska Division of Geological and Geophysical Surveys sampled this occurrence in 1983 (Bundtzen, Laird, and Lockwood, 1988).
Alteration: Silicification.
Commodities (Major) - Au; (Minor) - Hg
Development Status: None
Deposit Model: Polymetallic vein (Cox and Singer, 1986; model 22c).
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.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
Other Databases
| Link to USGS - Alaska: | ID066 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Angayucham TerraneAccretionary Complex
- Farewell buried DomainDomain
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