John River Occurrence, Koyukuk Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| John River Occurrence | Occurrence |
| Koyukuk Mining District | Mining District |
| Yukon-Koyukuk Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
67° 45' 36'' North , 152° 22' 48'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Location: The original reference for this occurrence only describes the location as being on John River near Hunt Fork (Joesting, 1942). Based on subsequent descriptions (Berg and Cobb, 1967; Cobb, 1972 [MF 469]; Maas, 1987), it is probably at an elevation of about 1,500 feet on the east side of John River, about 1.5 miles downstream from the mouth of Hunt Fork. These later locations may or may not be more accurate. The location is accurate within 1 mile.
Geology: This occurrence is a stibnite lode, a sample of which assayed 42% antimony (Joesting, 1942). It is near a fault contact between Upper Devonian, Hunt Fork Shale and Middle or Upper Devonian(?) or older(?), black slate, phyllite. and limestone (Dillon and others, 1986). No other information about this occurrence is available.
Workings: Only surface sampling.
Commodities (Major) - Sb
Development Status: None
Deposit Model: Simple Sb deposit (?)
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 | |||
|---|---|---|---|
| ⓘ | Stibnite | 2.DB.05 | Sb2S3 |
Other Databases
| Link to USGS - Alaska: | WI003 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Brooks RangeMountain Range
- Rocky MountainsMountain Range
North America PlateTectonic Plate
- Brooks Range DomainVolcanic Arc
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