Unnamed Prospect (ARDF - CR111), Twelvemile Arm, Kasaan Bay, Prince of Wales Island, Ketchikan Mining District, Prince of Wales-Hyder Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Prospect (ARDF - CR111) | - not defined - |
| Twelvemile Arm | - not defined - |
| Kasaan Bay | Bay |
| Prince of Wales Island | Island |
| Ketchikan Mining District | Mining District |
| Prince of Wales-Hyder Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
55° 19' 52'' North , 132° 44' 2'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Hydaburg | 391 (2017) | 15.0km |
| Hollis | 112 (2011) | 25.8km |
| Craig | 1,248 (2017) | 30.7km |
| Klawock | 765 (2017) | 33.5km |
| Thorne Bay | 483 (2017) | 41.8km |
Location: This is locality 1 of Herreid and Rose (1966) and its location is accurate. It is about 1.2 miles south of the head of Twelvemile Arm and about 0.6 mile south-southwest of the center of section 25, T. 75 S., R. 83 E.
Geology: At this site, a series of discontinuous quartz veins that strike N10E and dip 80NW contain small amounts of chalcopyrite and tetrahedrite (Herreid and Rose, 1966). A sample of a vein contained 0.06 ounce of gold per ton and 8.64 ounces of silver per ton. The veins cut massive, light-gray dolomite that is part of the Wales Group of Cambrian and older age. The workings consist of a 110-foot adit and several prospect pits.
Workings: The workings consist of a 110-foot adit and several prospect pits.
Age: Unknown, other than that the deposit consists of quartz veins that cut dolomite of Cambrian or older age.
Commodities (Major) - Ag, Au, Cu
Development Status: None
Deposit Model: Polymetallic vein (Cox and Singer, 1986; model 22c).
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
2 valid minerals.
Detailed Mineral List:
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ 'Tetrahedrite Subgroup' Formula: Cu6(Cu4C2+2)Sb4S12S |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
| 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 | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Sb | Antimony | |
| Sb | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
Other Databases
| Link to USGS - Alaska: | CR111 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Alexander DomainDomain
- Alexander TerraneVolcanic Arc
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