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Unnamed Prospect (ARDF - JU074; west-northwest of St. James Bay), Haines, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Prospect (ARDF - JU074; west-northwest of St. James Bay) | - not defined - |
| Haines | City Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
58° 38' 38'' North , 135° 22' 33'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Gustavus | 434 (2017) | 33.1km |
Location: This occurrence is 5 miles west-northwest of St. James Bay. It is at an elevation of approximately 2,000 feet, near the terminus of a glacier at the head of a creek draining into St. James Bay. It is in the NE1/4, SW1/4 section 20, T. 37 S., R. 61 E. of the Copper River Meridian. The location is accurate.
Geology: The prospect is in Silurian graywacke, turbidite, and limestone of the Point Augusta Formation (Brew and Ford, 1985). The deposit consists of pods and stringers of pyrite in siliceous argillite and in quartz veins, and of massive pyrite and pyrrhotite parallel to the foliation of laminated phyllite. U.S. Bureau of Mines samples contain up to 0.1 ppm gold, 1,600 ppm barium, 880 ppm copper, 570 ppm lead, and 710 ppm zinc (Clough and Redman, 1989). The general area is underlain by metamorphosed Silurian and Devonian clastic rocks, limestone, and volcanic units; Permian limestone and siltstone; and small plutons of Tertiary and Cretaceous granodiorite (Brew and Ford, 1985).
Workings: Only surface sampling.
Commodities (Major) - Au, Cu, Pb, Zn; (Minor) - Ba
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
4 valid minerals.
Detailed Mineral List:
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Pyrrhotite Formula: Fe1-xS |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe1-xS |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
Other Databases
| Link to USGS - Alaska: | JU074 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Coast MountainsMountain Range
North America PlateTectonic Plate
- Alexander DomainDomain
- Alexander TerraneVolcanic Arc
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