Wickersham Occurrence, Valdez Creek Mining District, Matanuska-Susitna Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Wickersham Occurrence | Occurrence |
| Valdez Creek Mining District | Mining District |
| Matanuska-Susitna Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
63° 6' 35'' North , 147° 42' 7'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Location: This occurrence is at an elevation of about 3,600 feet on the west bank of an unnamed, southeast-flowing tributary of Wickersham Creek. It is about 6 miles west of the Denali Highway bridge over the Susitna River. The site is in the NW1/4 of sec. 11, T. 21 S., R. 1 W., of the Fairbanks Meridian. The location is accurate to within 1,000 feet. This is locality 13 of Smith and others (1975: OFR 69).
Geology: This occurrence consists of chalcopyrite disseminations in an altered intrusive rock that cuts metamorphosed Lower Cretaceous and Upper Jurassic flysch (Wilson and others, 1998). The intrusive rock probably is an apophysis of the quartz monzonite stock at the Gold Hill prospect (HE172). The stock is correlated with the Tertiary (63 and 55 Ma) Butte Lake pluton (Smith and others, 1988).
Workings: Surface exploration only.
Age: Tertiary, assuming that the deposit is indigenous to the intrusive host rock.
Commodities (Major) - Cu
Development Status: None
Deposit Model: Porphyry Cu-Au (Cox and Singer, 1986; model 20c)
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
2 valid minerals.
Detailed Mineral List:
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
Other Databases
| Link to USGS - Alaska: | HE173 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Chulitna-Broad Pass DomainDomain
- Yukon-TananaVolcanic Arc
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