Unnamed Occurrence (ARDF - HU026; south of Indian Mountain), Hughes Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - HU026; south of Indian Mountain) | - 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° 0' 36'' North , 153° 41' 16'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This occurrence is located east of the Indian River, about 4.5 miles south of Indian Mountain. The occurrence is at an elevation of about 1,800 feet, 0.3 mile west of the center of section 18, T. 7 N., R. 25 E. of the Kateel River Meridian. The location is accurate within 1 mile.
Geology: Kurtak and others (1999) report a small, conspicuous, color anomaly, which is the expression of hydrothermally altered andesite(?) that contains 2 to 3% pyrite. The andesite(?) and numerous quartz veinlets occur only as float. The oxidized rocks commonly exhibit boxworks and gossan textures which suggest a high,original sulfide content. Samples of quartz-rich float contain up to 593 ppb gold, 21.6 ppm silver, and 692 ppm, copper. The rocks in the area are Upper Jurassic-Lower Cretaceous, andesitic volcanic rocks (Patton and Miller, 1966).
Workings: Only surface sampling.
Alteration: Oxidation and unspecified hydrothermal alteration.
Commodities (Major) - Ag, Au, Cu
Development Status: None
Deposit Model: Porphyry Cu-Au (?) (Cox and Singer, 1986; model 20c)
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.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
Other Databases
| Link to USGS - Alaska: | HU026 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Koyukuk-Indian Mountain DomainDomain
- Koyukuk ArcsVolcanic Arc
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