Unnamed Occurrences (ARDF - CR096), Klawock Lake, Prince of Wales Island, Ketchikan Mining District, Prince of Wales-Hyder Census Area, Alaska, USAi
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Latitude & Longitude (WGS84):
55° 29' 26'' North , 132° 58' 55'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Klawock | 765 (2017) | 9.9km |
| Craig | 1,248 (2017) | 10.6km |
| Hollis | 112 (2011) | 22.9km |
| Hydaburg | 391 (2017) | 32.9km |
| Thorne Bay | 483 (2017) | 36.3km |
The Sealaska Corporation has the subsurface rights to the land in the vicinity of these occurrences.
Location: The descriptions that have been published do not provide exact locations of the several mineralized samples that define this site, but they are generally in the S1/2 section 32, T. 73 S., R. 82 E., and the N1/2 section 5, T. 74 S., R. 82 E. The coordinates are at about the center of the mineralized area.
Geology: Hedderly-Smith (1999 [Inventory]) identified several mineral occurrences in this area by following up geochemical anomalies. The country rocks are mostly metamorphosed Silurian or Ordovician andesite of the Luck Creek Breccia or Descon Formation, and the deposits probably are at or near the periphery of a small syenite stock. A rock-chip sample from a borrow pit in the southeast corner of section 32 contained 216 parts per million (ppm) lead and 2,100 ppm zinc; further examination revealed pyrite-sphalerite veinlets in silicified rhyodacite(?). In the northwest corner of section 5, brecciated rhyodacite(?) with a matrix composed of quartz with minor pyrite, pyrrhotite, sphalerite, and galena, forms a zone 20-60 feet wide; a sample contained 232 ppm lead, more than 2 percent zinc, and 2.3 ppm silver.
Workings: Only sampling by industry geologists.
Age: The deposits may be related to a small syenite stock of uncertain age.
Alteration: Silicification of volcanic rocks.
Commodities (Major) - Ag, Pb, Zn
Development Status: None
Deposit Model: Base and precious-metal values in quartz veinlets and breccia.
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:
| ⓘ Galena Formula: PbS |
| ⓘ 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 |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | 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 | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe1-xS |
| S | ⓘ Sphalerite | ZnS |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS - Alaska: | CR096 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Alexander DomainDomain
- Alexander TerraneVolcanic Arc
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