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Unnamed Occurrence (ARDF - CR045), Paul Young Creek, Prince of Wales Island, Ketchikan Mining District, Prince of Wales-Hyder Census Area, Alaska, USAi
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Latitude & Longitude (WGS84):
55° 36' 17'' North , 132° 36' 3'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Hollis | 112 (2011) | 5.8km |
| Thorne Bay | 483 (2017) | 10.5km |
| Klawock | 765 (2017) | 31.6km |
| Hydaburg | 391 (2017) | 46.4km |
| Coffman Cove | 180 (2017) | 47.6km |
Location: This occurrence is at an elevation of about 170 feet, about 1.3 miles northwest of the mouth of Paul Young Creek. It is about 0.2 mile east of the northwest corner of section 30, T. 72 S, R. 84 E. The location is accurate.
Geology: As described by Sainsbury (1961), this prospect consists of several trenches along about 350 feet of a creek that coincides with a fault. The rocks in the vicinity are black argillite of the Descon Formation of Silurian and Devonian age. In the southernmost trench, pyrite and chalcopyrite occur in seams one-eighth to one-quarter inch thick and in quartz veins along bedding. About 40 feet upstream, pyrite and chalcopyrite form disseminations and sulfide veins that also contain calcite. At a third trench, about 200 feet upstream, pyrite-bearing calcite veins up to 6 inches thick occur along joints in the argillite. The rocks along the fault to the northwest and southeast of this occurrence are sheared and pyritized. This is probably a prospect noted by Chapin (1919).
Workings: At least three trenches.
Age: Unknown, other than that the occurrence is in Silurian or Ordovician argillite.
Alteration: Pyritization along fault zone.
Commodities (Major) - Cu
Development Status: None
Deposit Model: Cu in small veins and layers along a fault in argillite.
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
4 valid minerals.
Detailed Mineral List:
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Pyrite | FeS2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
Other Databases
| Link to USGS - Alaska: | CR045 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Alexander DomainDomain
- Alexander TerraneVolcanic Arc
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