Unnamed Occurrence (ARDF - HU009; ridge between Bear and Clear Creeks), Hughes Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
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Latitude & Longitude (WGS84):
66° 12' 16'' North , 155° 50' 52'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This occurrence is on the ridge between Clear and Bear Creeks, about 3.5 miles northeast of the summit of Caribou Mountain. It is at an elevation of about 1,600 feet, in the NW1/4 E1/4 of section 3, T. 9 N., R. 14 E. of the Kateel River Meridian. The location is accurate within one-half mile.
Geology: This occurrence consists of altered quartz breccia in the contact zone between the Cretaceous, Zane Hills pluton and Lower or Upper Jurassic, andesitic volcanic rocks. A grab sample of the breccia contains 200 ppm antimony (Miller and Ferrians, 1968). No sulfides were noted in the sample description. Stream-sediment sample in the area are anomalous in lead and copper (Miller and Ferrians, 1968). A stream-sediment sample from a nearby spring contains 1.74 ppm Au (Miller and Ferrians, 1968). The rocks in the area are gneissic monzonite and quartz monzonite.
Workings: Only surface sampling.
Age: The Zane Hills pluton is Cretaceous based on a K-Ar date of 81 Ma.
Commodities (Major) - Sb; (Minor) - Au
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
1 valid mineral.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
Other Databases
| Link to USGS - Alaska: | HU009 |
|---|
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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