Unnamed Occurrence (ARDF - CR026), Black Bear Lake, Prince of Wales Island, Ketchikan Mining District, Prince of Wales-Hyder Census Area, Alaska, USAi
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Latitude & Longitude (WGS84):
55° 31' 42'' North , 132° 53' 5'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Klawock | 765 (2017) | 13.5km |
| Hollis | 112 (2011) | 15.9km |
| Craig | 1,248 (2017) | 17.6km |
| Thorne Bay | 483 (2017) | 28.8km |
| Hydaburg | 391 (2017) | 35.9km |
The land in the vicinity of this occurrence has been identified for possible selection by the Sealaska Corporation.
Location: This occurrence is at an elevation of about 3,200 feet, about 0.7 mile south-southwest of peak 3996 . It is about 0.2 mile north-northwest of the center of section 24, T. 73 S., R. 82 E.
Geology: At this occurrence, Hedderly-Smith and Glavinovich (1991) sampled a 3-inch-thick quartz-sulfide vein. The sample contained 0.16 percent copper, 0.40 percent lead, 2.08 percent zinc, 0.72 percent arsenic, 63.4 parts per million (ppm) silver, and 2.13 ppm gold. The sulfides are not identified but based on the analysis, the main ore minerals are probably galena and sphalerite. The rocks in the area are mainly Silurian or Ordovician metavolcanic and metasedimentary rocks of the Descon Formation. The deposit is possibly related to a Cretaceous diorite and granodiorite pluton to the north (Eberlein and others, 1983; Brew, 1996).
Workings: Only sampling by private geologists.
Age: Unknown; possibly related to a Cretaceous diorite and granodiorite pluton to the north (Eberlein and others, 1983; Brew, 1996).
Commodities (Major) - Ag, Au, Cu, Pb, Zn; (Minor) - As
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
3 valid minerals.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Galena | 2.CD.10 | PbS |
| 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 | ⓘ Galena | PbS |
| S | ⓘ Sphalerite | ZnS |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS - Alaska: | CR026 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Alexander DomainDomain
- Alexander TerraneVolcanic Arc
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