Unnamed Prospect (ARDF - VA104; near Jack Bay), Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Prospect (ARDF - VA104; near Jack Bay) | - not defined - |
| 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° 1' 40'' North , 146° 33' 10'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Valdez | 3,870 (2017) | 15.9km |
Location: This prospect is within Jack Bay State Marine Park; it is on the west-facing slope of the ridge in the center of the east side of the park. It is at an elevation of about 400 feet in the SE1/4 section 1, T. 10 S., R. 8 W., of the Copper River Meridian. This prospect is probably located to within one-quarter mile. It is locality 38 of Cobb and Matson (1972) and locality 30 of Winkler and others (1981 [OFR 80-892-B]).
Geology: Slate inclusions in greenstone of the Valdez Group contain pyrite, pyrrhotite, chalcopyrite and sphalerite (Johnson, 1919). The deposit was explored by a 25-foot adit. It may be a submarine volcanogenic deposit, similar to the deposit at the Midas mine (VA103).
Workings: The deposit was explored by a 25-foot adit.
Age: Late Cretaceous, the age of the Valdez Group host rocks (Winkler and others, 1981 [OFR 80-892-A]).
Commodities (Major) - Cu, Zn
Development Status: None
Deposit Model: Besshi massive sulfide deposit? (Cox and Singer, 1986; model 24b)
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
5 valid minerals.
Detailed Mineral List:
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Pyrrhotite Formula: Fe1-xS |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| 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 | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe1-xS |
| S | ⓘ Sphalerite | ZnS |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
Other Databases
| Link to USGS - Alaska: | VA104 |
|---|
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