Anchor Occurrences, McGrath Mining District, Bethel Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Anchor Occurrences | Group of Occurrences |
| McGrath Mining District | Mining District |
| Bethel Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
61° 25' 23'' North , 154° 48' 36'' West
Latitude & Longitude (decimal):
Type:
Group of Occurrences
Köppen climate type:
Location: Occurrences of placer gold are present in a several-square-mile area centered on USGS benchmark Anchor (Eppinger, 1993). The map site is at an elevation of 1,500 feet on one of the drainages flowing north from these uplands in the SE1/4 section 34, T 16 N, R 31 W, of the Seward Meridian. The map site is chosen to represent the general area of gold occurrences.
Geology: Pan concentrates from several drainages in this area contain detrital gold (Eppinger, 1993). The gold is subangular to angular and includes some grains to 1 mm across with very delicate features, such as serrated edges (Eppinger, 1993). Bedrock in the area is dominantly Cretaceous clastic sedimentary rocks (Eppinger, 1993).
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: | LH005 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Farewell-McGrath DomainDomain
- Farewell TerranePassive Margin
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