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Unnamed Occurrence (ARDF - MC185; north of Upper Hanagita Lakes), Nizina Mining District, Valdez-Cordova Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - MC185; north of Upper Hanagita Lakes) | - not defined - |
| Nizina Mining District | Mining District |
| Valdez-Cordova Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
61° 13' 20'' North , 143° 24' 21'' West
Latitude & Longitude (decimal):
Köppen climate type:
The locality is in the Wrangell-Saint Elias National Park and Preserve.
Location: This occurrence is in the headwaters of an unnamed north tributary to the Klu River. It is at an elevation of about 4,600 feet, 8,500 feet east-southeast of benchmark Verde (elevation 6233). The site is in the NE1/4 of section 34, T. 7 S., R. 11 E. of the Copper River Meridian. This is locality 41 of MacKevett (1976). It is probably accurate to within about 1,000 feet.
Geology: Small dikelike bodies of largely serpentinized ultramafic rock are emplaced in Upper Paleozoic metamorphic rocks. A sample contained, 150 parts per million (ppm) cobalt, 3,000 ppm chromium, 3,000 ppm nickel, and more than 10 percent magnesium (MacKevett, 1976).
Age: Late Paleozoic or younger based on the age of the metamorphic host rocks.
Alteration: Serpentinization.
Commodities (Major) - Cr, Ni
Development Status: None
Deposit Model: Podiform chromite (Cox and Singer, 1986, model 8a)
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 |
| ⓘ 'Serpentine Subgroup' Formula: D3[Si2O5](OH)4 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Chromite ? | 4.BB.05 | Fe2+Cr3+2O4 |
| Unclassified | |||
| ⓘ | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| O | Oxygen | |
| O | ⓘ Chromite | Fe2+Cr23+O4 |
| O | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| Si | Silicon | |
| Si | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| Cr | Chromium | |
| Cr | ⓘ Chromite | Fe2+Cr23+O4 |
| Fe | Iron | |
| Fe | ⓘ Chromite | Fe2+Cr23+O4 |
Other Databases
| Link to USGS - Alaska: | MC185 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Peninsular TerraneVolcanic Arc
- Wrangellia DomainVolcanic Arc
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