Unnamed Occurrence (ARDF - BN131; along tributary to the Niukluk River), Council Mining District, Nome Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - BN131; along tributary to the Niukluk River) | - not defined - |
| Council Mining District | Mining District |
| Nome Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
65° 12' 0'' North , 163° 52' 11'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This occurrence is on the south bank of an unnamed east headwater tributary to the Niukluk River at an elevation of about 1,200 feet. It is locality 84 of Gamble (1988).
Geology: A pyritized zone at a greenstone (amphibolite ?) contact with schist carries anomalous amounts of copper, zinc, and silver (Bundzten, 1974). This locality, and several others in this part of the Bendeleben A-4 quadrangle, are in high grade metamorphic rocks that are structurally above or peripheral to the crosscutting Pargon pluton. The Pargon pluton is mostly granodiorite and assumed to be Cretaceous in age (Till and others, 1986). It was emplaced at shallower depths than the more deep-seated Bendeleben pluton to the east. The metamorphic rocks peripheral to the western Pargon pluton are also intruded by small, felsic dikes and plugs including quartz porphyry and muscovite granite.
Workings: No workings are known at this locality.
Age: Cretaceous ?; this occurrence may be related to emplacement of the Pargon pluton which is assumed to be Cretaceous in age.
Alteration: Probably oxidized.
Commodities (Major) - Ag, Cu, Zn
Development Status: None
Deposit Model: Pyritized zone at greenstone-marble contact
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 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
Other Databases
| Link to USGS - Alaska: | BN131 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Brooks-Seward DomainDomain
- Nome ComplexAccretionary Complex
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