Unnamed Occurrence (ARDF - ID172; upper Little Eldorado Creek), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - ID172; upper Little Eldorado Creek) | - 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° 12' 16'' North , 157° 57' 18'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Crooked Creek | 105 (2016) | 38.0km |
Location: This occurrence is on a steep, east-facing bluff on the west side of Little Eldorado Creek. The occurrence is at an elevation of about 700 feet; it is about 0.8 mile north-northeast of hill 1013 and about 0.6 mile northeast of the center of section 6, T. 24 N., R. 47 W., of the Seward Meridian. The location is accurate.
Geology: This occurrence is based on a grab sample from what was thought to be a barren granite-porphyry plug that cuts sandstone of the Upper Cretaceous, Kuskokwim Group (Miller, Bundtzen, and Gray, 2005). The granite porphyry plug is 71.5 Ma (Miller and Bundtzen, 1994). The grab sample contained 700 parts per million (ppm) arsenic (McGimsey and others, 1988).
Workings: A sample was collected by the U.S. Geological Survey and Alaska Division of Geological and Geophysical Surveys in 1984 (McGimsey and others, 1988).
Age: Unknown; based on a sample from a granite-porphyry plug that has a 40K/40Ar age of 71.5 Ma (Miller and Bundtzen, 1994).
Commodities (Major) - As
Development Status: None
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: | ID172 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Farewell buried DomainDomain
- Farewell TerranePassive Margin
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