Unnamed Occurrence (ARDF - MH269; east of toe of Gakona Glacier), Chistochina Mining District, Southeast Fairbanks Census Area, Alaska, USAi
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Latitude & Longitude (WGS84):
63° 12' 1'' North , 145° 5' 38'' West
Latitude & Longitude (decimal):
KΓΆppen climate type:
Mindat Locality ID:
201295
Long-form identifier:
mindat:1:2:201295:0
GUID (UUID V4):
3ba5933e-1526-452d-8f4f-ffc3d5923b33
Location: This occurrence is an elevation 5,250 feet approximately 2 miles east of the toe of the Gakona Glacier. It is in the NE1/4NE1/4 section 8, T. 20 S., R. 14 E., Fairbanks Meridian. The site corresponds to locality 5 of Rose (1967).
Geology: Pyrite and traces of chalcopyrite occur in an amphibolite-bearing marble skarn along a contact with diorite (Rose, 1967). The marble is part of the Slana Spur Formation of Pennsylvanian age (Nokleberg and others, 1991).
Age: Probably Mesozoic.
Alteration: Development of amphibole-bearing marble skarn at the contact with diorite.
Commodities (Major) - Cu
Development Status: No
Deposit Model: Cu skarn deposit (Cox and Singer, 1986; model 18b).
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:
| β 'Amphibole Supergroup' Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| β Chalcopyrite Formula: CuFeS2 |
| β Pyrite Formula: FeS2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| β | Chalcopyrite | 2.CB.10a | CuFeS2 |
| β | Pyrite | 2.EB.05a | FeS2 |
| Unclassified | |||
| β | 'Amphibole Supergroup' | - | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| O | Oxygen | |
| O | β Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| F | Fluorine | |
| F | β Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Al | Aluminium | |
| Al | β Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Si | Silicon | |
| Si | β Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| S | Sulfur | |
| S | β Chalcopyrite | CuFeS2 |
| S | β Pyrite | FeS2 |
| Cl | Chlorine | |
| Cl | β Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Ti | Titanium | |
| Ti | β Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Fe | Iron | |
| Fe | β Chalcopyrite | CuFeS2 |
| Fe | β Pyrite | FeS2 |
| Cu | Copper | |
| Cu | β Chalcopyrite | CuFeS2 |
Other Databases
| Link to USGS - Alaska: | MH269 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Wrangellia DomainDomain
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References
