Unnamed Occurrence (ARDF - CR020), 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° 32' 34'' North , 132° 56' 20'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Klawock | 765 (2017) | 9.9km |
| Craig | 1,248 (2017) | 15.1km |
| Hollis | 112 (2011) | 19.1km |
| Thorne Bay | 483 (2017) | 30.7km |
| Hydaburg | 391 (2017) | 37.9km |
The Sealaska Corporation holds the subsurface rights to the land in the vicinity of this occurrence.
Location: This occurrence is along a logging road at an elevation of about 1,800 feet, about 1.4 miles southwest of peak 3640. It is in about the center of the NW1/4 section 15, T. 73 S., R. 82 E.
Geology: The occurrence consists of an arsenopyrite-quartz vein about 18 inches thick that cuts argillite of the Luck Creek Breccia of Silurian and Devonian age (Hedderly-Smith and Glavinovich, 1991; D.J. Grybeck, unpublished field notes, 1984). The vein is mainly quartz but a layer about 1.5 inches thick has about 10 percent sulfides, mainly arsenopyrite. Samples contained 0.46 percent copper and up to 17 parts per million (ppm) silver and 1.390 ppm gold. The deposit may be related to a nearby or buried Cretaceous granitic intrusion (Eberlein and others, 1983; Brew, 1996).
Age: Possibly related to a nearby or buried Cretaceous granitic intrusion.
Commodities (Major) - Ag, Au, Cu; (Minor) - As
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:
| ⓘ Arsenopyrite Formula: FeAsS |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| 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 | ⓘ Arsenopyrite | FeAsS |
| Fe | Iron | |
| Fe | ⓘ Arsenopyrite | FeAsS |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
Other Databases
| Link to USGS - Alaska: | CR020 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Alexander DomainDomain
- Alexander TerraneVolcanic Arc
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