Unnamed Occurrence (ARDF - AN136; near Crescent Glacier), Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USAi
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Latitude & Longitude (WGS84):
61° 1' 12'' North , 147° 54' 36'' West
Latitude & Longitude (decimal):
KΓΆppen climate type:
Mindat Locality ID:
200518
Long-form identifier:
mindat:1:2:200518:1
GUID (UUID V4):
47ae6b52-764c-484d-9133-e252aad990f3
Location: At terminus of Cresent Glacier. Accurate within 1,000 ft. Locality A-18 of Jansons and others (1984).
Geology: Quartz float contains pyrite, arsenopyrite, and chalcopyrite. A float sample contained no detectable gold and 0.03 oz/ton Ag. Bedrock in the vicinity is the Late Cretaceous metasedimentary rocks of the Valdez Group. A minor amount of placer gold present (Jansons and others, 1984).
Workings: Quartz float sample contained no detectable gold and 0.03 oz/ton Ag. Placer gold was present in minor amounts. Jansons and others (1984) reported low mineral development potential.
Age: Late Cretaceous or younger.
Production: No production reported.
Commodities (Major) - Ag, Au
Development Status: None
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a)
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
4 valid minerals.
Detailed Mineral List:
| β Arsenopyrite Formula: FeAsS |
| β Chalcopyrite Formula: CuFeS2 |
| β Pyrite Formula: FeS2 |
| β Quartz Formula: SiO2 |
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 |
| β | Arsenopyrite | 2.EB.20 | FeAsS |
| Group 4 - Oxides and Hydroxides | |||
| β | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | β Quartz | SiO2 |
| Si | Silicon | |
| Si | β Quartz | SiO2 |
| S | Sulfur | |
| S | β Arsenopyrite | FeAsS |
| S | β Chalcopyrite | CuFeS2 |
| S | β Pyrite | FeS2 |
| Fe | Iron | |
| Fe | β Arsenopyrite | FeAsS |
| Fe | β Chalcopyrite | CuFeS2 |
| Fe | β Pyrite | FeS2 |
| Cu | Copper | |
| Cu | β Chalcopyrite | CuFeS2 |
| As | Arsenic | |
| As | β Arsenopyrite | FeAsS |
Other Databases
| Link to USGS - Alaska: | AN136 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Yakutat-Malaspina DomainDomain
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References
