Wells Bay No. 4 Occurrence, Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Wells Bay No. 4 Occurrence | Occurrence |
| Prince William Sound Mining District | Mining District |
| Valdez-Cordova Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
61° 3' North , 147° 24' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Mindat Locality ID:
202851
Long-form identifier:
mindat:1:2:202851:7
GUID (UUID V4):
dc432946-88fc-49df-939d-b9047b7454a4
Location: On south facing slope above the northernmost drainage of Wells Bay. At 2,000 ft elevation, 2.1 miles north-northeast of the tidal flats in northern Wells Bay. Accurate within 3,000 ft. Locality A-11 of Jansons and others (1984).
Geology: Jansons and others (1984) reported a 30-ft-wide, more than 100-ft-long shear zone in graywacke of the Tertiary Orca Group. The shear zone contains fractured graywacke cemented by pyrite, arsenopyrite, and quartz. Eight grab samples contained up to .012 oz/ton Au, less than 0.2 to 0.6 oz/ton Ag, and up to 0.2 percent As.
Workings: Eight grab samples contained up to .012 oz/ton Au, less than 0.2 to 0.6 oz/ton Ag, and up to 0.2 percent As. Jansons and others (1984) indicate low potential for mineral development.
Age: Paleocene or younger; shear zone cuts graywacke of the Tertiary Orca Group.
Commodities (Major) - Ag, As, Au,
Development Status: None
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 | |||
|---|---|---|---|
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Pyrite | FeS2 |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
Other Databases
| Link to USGS - Alaska: | AN154 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Yakutat-Malaspina DomainDomain
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References
