Gus Creek Occurrence, Koyukuk Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Gus Creek 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° 35' 23'' North , 149° 16' 12'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
See also: Garnet Creek (CH071).
Location: Gus Creek (Shady Creek on the modern topographic map) is a small, north-flowing tributary to the Bettles River. The reference point is plotted near the mouth of Gus Creek (sec. 23, T. 32 N., R. 8 W., of the Fairbanks Meridian), although the exact location of the prospect is not known. The location is accurate within a 1/2-mile radius.
Geology: Reed (1938) reported only fair prospects on Gus Creek. He described the creek as flowing through a limestone canyon on its lower end, but widening with bedrock changing to schist about 1/4 mile above the mouth. Dillon and others (1996) mapped the geology of the lower mile of the creek as Ordovician to Cambrian marble and two small bodies of Devonian biotite granite gneiss that are part of the Baby Creek batholith. A Devonian calcareous hornfels surrounds one of the granitic bodies. Rocks adjacent to the upper portion of the creek are mapped as Ordovician to Cambrian(?) feldspar-quartz schist.
Workings: Reports of prospecting in the 1930s.
Age: Quaternary.
Commodities (Major) - Au
Development Status: None
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a)
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.
Detailed Mineral List:
| ⓘ Native Gold Formula: Au |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
List of minerals for each chemical element
| Au | Gold | |
|---|---|---|
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS - Alaska: | CH069 |
|---|
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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