Unnamed Occurrence (ARDF - VA075; near the head of the Uranatina River), Nelchina Mining District, Valdez-Cordova Census Area, Alaska, USAi
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Latitude & Longitude (WGS84):
61° 25' 43'' North , 144° 58' 15'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Kenny Lake | 355 (2011) | 32.3km |
| Willow Creek | 191 (2011) | 45.3km |
Mindat Locality ID:
201889
Long-form identifier:
mindat:1:2:201889:1
GUID (UUID V4):
2b9acd86-f2ae-4a84-b669-1c5b0637e296
Location: This occurrence is on the ridge on the north side of the upper Uranatina River about 1,000 feet west of elevation (peak) 5740. It is at an elevation of about 5,900 feet in the SW1/4 section 13, T. 5 S., R. 2 E., of the Copper River Meridian. This occurrence is probably located to within one-quarter mile; it is locality 80 of Winkler and others (1981 [OFR 80-892-B]).
Geology: Stratiform, iron-stained zones extend for as much as several hundred meters in quartz-mica schist of the Haley Creek terrane (Winkler and others, 1981 [OFR 80-892-B]; Winkler and others, 1981 [OFR 80-892-A]). These zones contain disseminated pyrite, sphalerite, and galena (?). These may be epigenetic replacement deposits and younger than the enclosing schist (Winkler and others, 1981 [OFR 80-892-B]).
Workings: Surface examination and possibly sampling have taken place at this occurrence.
Age: Schist of the Haley Creek terrane was probably metamorphosed in the mid-Cretaceous (Winkler and others, 1981 [OFR 80-892-A]). If the deposits are epigenetic, they are probably Late Cretaceous or Tertiary.
Commodities (Major) - Ag, Pb, Zn
Development Status: None
Deposit Model: Disseminated replacement deposits (?) in quartz-mica schist
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
3 valid minerals.
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 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS - Alaska: | VA075 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
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References
