Shelton Prospect, Twelvemile Arm, Kasaan Bay, Prince of Wales Island, Ketchikan Mining District, Prince of Wales-Hyder Census Area, Alaska, USAi
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Latitude & Longitude (WGS84):
55° 25' 59'' North , 132° 38' 27'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Hollis | 112 (2011) | 13.7km |
| Hydaburg | 391 (2017) | 27.7km |
| Thorne Bay | 483 (2017) | 29.3km |
| Klawock | 765 (2017) | 31.6km |
Location: The Shelton prospect is about 3.4 miles south of Hollis at an elevation of about 1,000 feet. It is about 0.1 mile north of the southwest corner of section 22, T. 74 S., R. 84 E.
Geology: A quartz-calcite vein about 6 feet thick cuts fractured marble associated with schist and phyllite that are part of the Descon Formation of Silurian and Ordovician age (Wright and Wright, 1908; Twenhofel and others, 1949; Eberlein and others, 1983; Brew, 1996). The vein strikes N20E and dips 65 SE, and contains 1 to 2 percent pyrite and chalcopyrite. A 6-foot sample across the vein contained 0.25 percent copper. The prospect was explored by a short drift and a 55-foot winze. Maas and others (1991) were not able to find the workings but did find mining debris near the reported site of the prospect. Their samples of quartz in rubble contained 11.8 to 12.3 parts per million silver and 1.8 to 1.92 percent copper.
Workings: The prospect was explored by a short drift and a 55-foot winze prior to 1908.
Age: Unknown, other than that the vein cuts Silurian or Ordovician marble.
Commodities (Major) - Ag, Cu
Deposit Model: Quartz-calcite vein with pyrite and chalcopyrite.
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 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | 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 | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Pyrite | FeS2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
Other Databases
| Link to USGS - Alaska: | CR118 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Alexander DomainDomain
- Alexander TerraneVolcanic Arc
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