Unnamed Occurrence (ARDF - HE031; on Costello Creek), Valdez Creek Mining District, Matanuska-Susitna Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - HE031; on Costello Creek) | - not defined - |
| Valdez Creek Mining District | Mining District |
| Matanuska-Susitna Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
63° 14' 23'' North , 149° 30' 0'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: The map site of this placer occurrence is at an elevation of about 2,400 feet on Costello Creek. It is in sec. 29, T. 19 S., R. 10 W., of the Fairbanks Meridian. The site corresponds to loc. E-15 of Balen (1990: OFR 34-90).
Geology: Gold has been reported in an alluvial placer along Costello Creek, from its confluence with the Bull River upstream for about 2 miles. Costello Creek drains a atchment basin containing porphyry, skarn, polymetallic, and epithermal veins, all with significant gold contents.
Workings: Minor surface workings show traces of gold in placer samples (Balen, 1990: OFR 34-90).
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: | HE031 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Chulitna-Broad Pass DomainDomain
- Peninsular TerraneVolcanic Arc
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