Mulchatna River Occurrence, Bristol Bay Region Mining District, Dillingham Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Mulchatna River Occurrence | Occurrence |
| Bristol Bay Region Mining District | Mining District |
| Dillingham Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
60° 18' North , 156° 6' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Location: Martin and Katz (1912) reported that flour gold was present on gravel bars of the Mulchatna River above the mouth of the Koktalee (Koktuli) River. The map site of this occurrence is a gravel bar about 1.5 mile above the mouth of Keefer Creek. It is arbitrarily chosen to represent the general area of occurrences noted by Martin and Katz (1912). Cobb (1972 [MF 384]; 1976 [OF 76-606]) included these occurrences under the name 'Mulchatna River'.
Geology: Martin and Katz (1912) reported that fine flour gold was present on gravel bars of the Mulchatna River above the mouth of the Koktalee (Koktuli) River. The Mulchatna River approximately coincides with a major structural boundary between mid-Cretaceous Kuskowim Group clastic rocks to the west and Mesozoic sedimentary and igneous rocks to the east (Decker and others, 1994).
Age: Holocene.
Commodities (Major) - Au
Development Status: None
Deposit Model: Placer Au-PGE (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: | TA012 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Peninsular-Tlikakila DomainDomain
- Peninsular TerraneVolcanic Arc
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