Graham Creek Prospect, Innoko Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Graham Creek Prospect | Prospect |
| Innoko Mining District | Mining District |
| Yukon-Koyukuk Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
63° 36' 36'' North , 156° 7' 40'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Location: Graham Creek is a large, north-flowing tributary to Colorado Creek. The headwater tributaries to Graham Creek include Bear Creek (OP003) and Cripple Creek (OP005). Mining occurred along both Bear and Cripple creeks, and an additional mine is marked on the current topographic map along the north side of Cripple Creek just south of the junction of Cripple Creek and Graham Creek. The exact location of prospecting along Graham Creek is not known; the coordinates are arbitrarily chosen at the approximate midpoint of Graham Creek. This location is accurate within 3 miles.
Geology: The rocks in the vicinity of Graham Creek consist of chert, argillite, and volcaniclastic rocks. A headwater tributary of Graham Creek, Cripple Creek, drains a monzonitic intrusion (Chapman and others, 1985). This Cretaceous/Tertiary monzonitic intrusion is the probable source of gold in these creeks (Bundtzen and others, 1987). Prospecting and development work were reported along Graham Creek in 1940 (Smith, 1942); the exact location of prospecting is unknown. Two headwater tributaries to Graham Creek, Bear Creek (OP003) and Cripple Creek (OP005), were both mined.
Workings: Prospecting and development work were reported along Graham Creek in 1940 (Smith, 1942); the exact location of the work is unknown. Two headwater tributaries to Graham Creek, Bear Creek (OP003) and Cripple Creek (OP005) were both mined.
Age: Quaternary. Cripple Creek, a headwater tributary of Graham Creek, drains a Cretaceous/Tertiary monzonitic intrusive body that is the probable source of gold in these creeks (Bundtzen and others, 1987).
Commodities (Major) - Au
Development Status: Undetermined.
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a)
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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:
Other Databases
| Link to USGS - Alaska: | OP001 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Angayucham TerraneAccretionary Complex
- Farewell-Innoko-Idono DomainDomain
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