Unnamed Occurrence (ARDF - MC039; head of Rock Creek), Chistochina Mining District, Valdez-Cordova Census Area, Alaska, USAi
Regional Level Types | |
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Unnamed Occurrence (ARDF - MC039; head of Rock Creek) | - 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° 38' 42'' North , 143° 52' 26'' West
Latitude & Longitude (decimal):
Köppen climate type:
Mindat Locality ID:
201025
Long-form identifier:
mindat:1:2:201025:3
GUID (UUID V4):
624bea60-babc-4d83-9b50-dc65bca1131f
The locality is in the Wrangell-Saint Elias National Park and Preserve.
Location: This occurrence is on the east wall of a cirque at the head of Rock Creek. It is at an of elevation about 5,560 feet, 2,600 feet south of the center of section 36, T. 2 S., R. 8 E. of the Copper River Meridian. This is locality 165 of MacKevett (1976) and locality 19 of MacKevett and others (1978). The location is accurate to within about 100 feet.
Geology: This occurrence consists of an altered zone about 2 meters wide that is developed along a prominent steep fault that separates Triassic Nikolai Greenstone to the north from Triassic Chitistone Limestone to the south (MacKevett, 1976; MacKevett and others, 1978). A sample of the altered material contained more than 2,000 parts per million (ppm) manganese, 15 ppm silver, 70 ppm cadmium, 20 ppm molybdenum, 3,000 ppm lead, and more than 10,000 ppm zinc. The altered zone at MC043 is on the same fault as this occurrence.
Workings: Only limited surface sampling.
Alteration: Oxidation.
Commodities (Major) - Ag, Pb, Zn; (Minor) - Cd, Mo
Development Status: None
Deposit Model: Polymetallic vein (Cox and Singer, 1986; model 22c)
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:
ⓘ Galena ? Formula: PbS |
ⓘ Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
ⓘ | Sphalerite | 2.CB.05a | ZnS |
ⓘ | Galena ? | 2.CD.10 | PbS |
List of minerals for each chemical element
S | Sulfur | |
---|---|---|
S | ⓘ Galena | PbS |
S | ⓘ Sphalerite | ZnS |
Zn | Zinc | |
Zn | ⓘ Sphalerite | ZnS |
Pb | Lead | |
Pb | ⓘ Galena | PbS |
Other Databases
Link to USGS - Alaska: | MC039 |
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Other Regions, Features and Areas containing this locality
North America
- Wrangell MountainsMountain Range
North America PlateTectonic Plate
- Wrangellia DomainDomain
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