Unnamed Prospect (ARDF - MC026; south bank of Kotsina River), Chistochina Mining District, Valdez-Cordova Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Prospect (ARDF - MC026; south bank of Kotsina River) | - not defined - |
| Chistochina Mining District | Mining District |
| Valdez-Cordova Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
61° 42' 59'' North , 143° 52' 11'' West
Latitude & Longitude (decimal):
Köppen climate type:
The locality is in the Wrangell-Saint Elias National Park and Preserve.
Location: This prospect is on the south bank of the Kotsina River, 2,200 feet downstream of the mouth of Amy Creek. It is at an elevation of 2,600 feet, 3,000 feet southeast of the center of section 1, T. 2 S., R. 8 E., of the Copper River Meridian. This is locality 170 of MacKevett (1976) and locality 6 of MacKevett and others (1978). The location is accurate to within about 100 feet.
Geology: The deposit at this prospect consists of pyrite- and chalcopyrite-bearing veins less than 30 centimeters thick that cut Triassic gabbro and Tertiary(?) felsic dikes. Some of the pyrite is localized along iron-stained fault zones (Moffit and Mertie, 1923). Samples of the mineralization contain as much as 3 parts per million (ppm) silver and 1,000 ppm copper. The deposits were explored by several short adits.
Workings: The deposits were explored by several short adits.
Age: Tertiary? The veins cut felsic dikes that may be Tertiary in age.
Alteration: Oxidation.
Commodities (Major) - Ag, Cu
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
2 valid minerals.
Detailed Mineral List:
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ 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 |
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: | MC026 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Wrangell MountainsMountain Range
North America PlateTectonic Plate
- Wrangellia DomainVolcanic Arc
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