Unnamed Occurrence (ARDF - NB019; south of Mirror Creek), Chisana Mining District, Southeast Fairbanks Census Area, Alaska, USAi
Regional Level Types | |
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Unnamed Occurrence (ARDF - NB019; south of Mirror Creek) | - not defined - |
Chisana Mining District | Mining District |
Southeast Fairbanks Census Area | Census Area |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
62° 31' 9'' North , 141° 9' 39'' West
Latitude & Longitude (decimal):
Köppen climate type:
Mindat Locality ID:
201381
Long-form identifier:
mindat:1:2:201381:0
GUID (UUID V4):
4347b9c6-d075-4473-826e-df5c71a9b671
Location: This occurrence is in the high part of the uplands south of Mirror Creek. It is at an elevation of about 2,700 feet, about 500 feet north of elevation 2835. The occurrence is in the NE1/4 of section 31, T. 9 N., R. 23 E. of the Copper River Meridian. This is locality 57 of Richter and others (1975). It is located to within several hundred feet.
Geology: Cobble-sized float of massive chromite occurs at this locality (Richter and others, 1975). The chromite was eroded from a band of alpine-type ultramafic rocks that trends east-west for about 1 mile in this area (Richter, 1976).
Age: Cretaceous? This is the inferred age of the alpine-type ultramafic body (Richter, 1976).
Commodities (Major) - Cr
Development Status: None
Deposit Model: Podiform chromite (Cox and Singer, 1986; model 8b)
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.
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: | NB019 |
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Other Regions, Features and Areas containing this locality
North America
- Wrangell MountainsMountain Range
North America PlateTectonic Plate
- Windy-McKinley DomainDomain
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