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Unnamed Occurrence (ARDF - MC055; between Sheep and Clear creeks), Chistochina Mining District, Valdez-Cordova Census Area, Alaska, USAi
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Latitude & Longitude (WGS84):
61° 35' 10'' North , 143° 50' 9'' West
Latitude & Longitude (decimal):
Köppen climate type:
The locality is in the Wrangell-Saint Elias National Park and Preserve.
Location: This occurrence is near the south end of the ridge between Clear Creek and Sheep Creek. It is at an elevation of about 4,200 feet, 800 feet northwest of elevation 4270 and 2,800 feet northeast of the center of section 30, T. 3 S., R. 9 E. of the Copper River Meridian. This is locality 132 of MacKevett (1976); the location is accurate to within about 1,000 feet.
Geology: This occurrence consists of a 2-foot-wide vein that cuts Triassic Chitistone Limestone (MacKevett, 1976). A sample of this vein contained 1,000 parts per million (ppm) chromium and 100 ppm lanthanum.
Workings: Only limited surface sampling.
Age: Triassic or younger based on the age of the host rocks.
Commodities (Major) - Cr
Development Status: None
Deposit Model: Vein
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:
| ⓘ Chromite ? Formula: Fe2+Cr3+2O4 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Chromite ? | 4.BB.05 | Fe2+Cr3+2O4 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Chromite | Fe2+Cr23+O4 |
| Cr | Chromium | |
| Cr | ⓘ Chromite | Fe2+Cr23+O4 |
| Fe | Iron | |
| Fe | ⓘ Chromite | Fe2+Cr23+O4 |
Other Databases
| Link to USGS - Alaska: | MC055 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Wrangell MountainsMountain Range
North America PlateTectonic Plate
- Wrangellia DomainVolcanic Arc
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