Nation River Occurrences, Black Mining District, Southeast Fairbanks Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Nation River Occurrences | Group of Occurrences |
| Black Mining District | Mining District |
| Southeast Fairbanks Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
65° 21' 32'' North , 141° 39' 28'' West
Latitude & Longitude (decimal):
Type:
Group of Occurrences
Köppen climate type:
This site is within the Yukon-Charley Rivers National Preserve. These prospects are located on Doyon, Limited selected or conveyed land. For more information, contact Doyon, Limited.
Location: The Nation River prospect area covers about 10 square miles. The coordinates are for the center of the area, on the boundary between section 12, T. 6 N., R. 29 E., of the Fairbanks Meridian, and section 7, T. 6 N., R. 30 E., of the Fairbanks Meridian. The main mineralized area is in section 10, T. 6 N., R. 29 E., of the Fairbanks Meridian. The locations are accurate. These prospects are located within Doyon, Limited selected or conveyed land.
Geology: The Nation River area of occurrences is defined by lead and zinc soil anomalies along with lesser copper values, that are associated with an east-west-trending fault. Iron staining is intense, and there are iron-rich seepages for half a mile in section 10, T. 6 N., R. 29 E. (Doyon, Limited, 1986). The prospect area is underlain by Permian limestone, Upper Devonian Nation River Formation, and Lower Cambrian Adams Argillite and Funnel Creek Limestone. All beds strike northeast and are repeatedly folded (Doyon, Limited, 1986). The lead and zinc anomalies may reflect leaching of mudstone, siltstone, and sandstone country rocks or of a deeper, buried sulfide body (Doyon, Limited, 1986).
Workings: The Nation River area has been explored by soil and rock sampling, as well as by geologic mapping (Doyon, Limited, 1986).
Alteration: Intense iron staining and iron-rich seepages along an east-west fault (Doyon, Limited, 1986).
Commodities (Major) - Pb, Zn; (Minor) - Cu
Development Status: None
Deposit Model: Fault-controlled Zn-Pb?
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: | CY022 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Brooks-Northslope1 DomainDomain
- Cordillera Front and ThrustOrogenic Belt
- Laurentia triangle DomainDomain
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