Unnamed Occurrence (ARDF - CR067), Tolstoi Mountain, Kasaan Peninsula, Prince of Wales Island, Ketchikan Mining District, Prince of Wales-Hyder Census Area, Alaska, USAi
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Latitude & Longitude (WGS84):
55° 39' 2'' North , 132° 22' 48'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Thorne Bay | 483 (2017) | 9.8km |
| Hollis | 112 (2011) | 19.2km |
| Coffman Cove | 180 (2017) | 49.1km |
| Hydaburg | 391 (2017) | 56.8km |
Location: This occurrence is a few hundred feet southeast of the outlet of a small lake about 0.4 mile north of Tolstoi Mountain. It is in the SE1/4 section 4, T. 72 S., R. 85 E. The geology and workings in the area are shown on plate 16 of Warner and others (1961).
Geology: This occurrence was first described by Warner and others (1961). The deposit consists of a vein about 4 inches thick that is exposed for about 8 feet; it strikes N50W and dips 60SW. It consists of stringers of pyrite and arsenopyrite in brecciated quartz, and may contain gold. The rocks in the vicinity are part of a large Silurian or Ordovician granodiorite stock.
Age: The vein cuts Silurian or Ordovician granodiorite.
Commodities (Major) - Au?; (Minor) - As
Development Status: None
Deposit Model: Gold?-quartz vein.
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 | |||
|---|---|---|---|
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | 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 |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Pyrite | FeS2 |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
Other Databases
| Link to USGS - Alaska: | CR067 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Alexander DomainDomain
- Alexander TerraneVolcanic Arc
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