Unnamed Occurrence (ARDF - HU017; near Red Mountain Creek), Hughes Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - HU017; near Red Mountain Creek) | - not defined - |
| Hughes Mining District | Mining District |
| Yukon-Koyukuk Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
66° 17' 48'' North , 153° 53' 31'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This occurrence is on the north side of Koyukuk River, about 0.5 mile north-northwest of the junction of Red Mountain Creek and Koyukuk River. The occurrence is at an elevation of about 750 feet, 0.2 mile east-northeast of the center of section 2, T. 10 N., R. 23 E. of the Kateel River Meridian. The location is accurate within one-half mile.
Geology: This occurrence is marked by a prominent gossan in a small, hypabyssal intrusion of Cretaceous(?) latite porphyry (Patton and Miller, 1966). The porphyry contains disseminated pyrite. Samples contained trace amounts of gold, zinc, and other metals (Patton and Miller, 1966). The latite porphyry intrudes Cretaceous graywacke and mudstone. Samples of latite porphyry, quartzite, and slate collected by Kurtak and others (1999) do not contain anomalous gold or other metals.
Workings: Only surface sampling.
Age: Patton and Miller (1966) suggest that the latite porphyry is Cretaceous.
Alteration: Gossan formed by oxidation of disseminated pyrite.
Commodities (Major) - Au; (Minor) - Zn
Development Status: None
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
2 valid minerals.
Detailed Mineral List:
| ⓘ Native Gold Formula: Au |
| ⓘ Pyrite Formula: FeS2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS - Alaska: | HU017 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Koyukuk ArcsVolcanic Arc
- Koyukuk north DomainDomain
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