Unnamed Occurrence (ARDF - MM006; south flank of Chitsia Mountain), Kantishna Mining District, Denali Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - MM006; south flank of Chitsia Mountain) | - not defined - |
| Kantishna Mining District | Mining District |
| Denali Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
63° 57' 2'' North , 150° 17' 52'' West
Latitude & Longitude (decimal):
Köppen climate type:
Mindat Locality ID:
201334
Long-form identifier:
mindat:1:2:201334:6
GUID (UUID V4):
dfa80ece-6820-4540-99f9-bb88dfbcebdb
The occurrence is in Denali National Park and Preserve.
Location: The approximate location of this occurrence is on the south flank of Chitsia Mountain at an elevation of about 2800 feet. It probably is the NE1/4 of section 21, T. 11 S., R. 14 W., Fairbanks Meridian. The occurrence corresponds to number 75 of Bundtzen, Smith, and Tosdal (1976) and 85a of Bundtzen (1981).
Geology: The area of this occurrence is probably underlain by phyllite and porphyritic metarhyolite of the Upper Devonian and Mississippian Totatlanika Formation (Hawley and Associates, 1978, fig. 4.1-A(3); Bundtzen, 1981). The occurrence consists of limonitic gossan developed on pyritic metarhyolite and phyllite; small amounts of chalcopyrite are associated with the pyrite. Grab samples of the limonitic material contained up to 400 ppm each of copper and lead, and 500 ppm zinc. Gold was not detected, but three samples each assayed 0.01 ounce of silver per ton (Bundtzen, 1981, occurrence 85a, table 10). The occurrence is similar geologically to those at MM007 and MM009, which are also in the Totatlanika Formation.
Workings: The area has been reconnaissance mapped and sampled (Hawley and Associates, 1978, fig. 4.1-A(3); Bundtzen, 1981). There are no siginificant workings.
Age: Possibly Late Devonian or Mississippian, the depositional age of the Totatlanika Formation.
Alteration: Iron-oxide alteration.
Commodities (Major) - Cu; (Minor) - Pb, Zn
Development Status: None
Deposit Model: Stratabound sulfide deposit in metarhyolite.
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 |
| ⓘ 'Limonite' |
| ⓘ Pyrite Formula: FeS2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
Other Databases
| Link to USGS - Alaska: | MM006 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
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References
