Alameda Prospect (Tomboy Prospect), Kitkun Bay, Prince of Wales Island, Ketchikan Mining District, Prince of Wales-Hyder Census Area, Alaska, USAi
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Latitude & Longitude (WGS84):
55° 10' 6'' North , 132° 7' 40'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Ketchikan | 8,197 (2017) | 36.0km |
Location: The Alameda or Tomboy prospect is southeast of Kitkun Bay at an elevation of about 300 feet. It is about 1.0 mile north-northwest of hill 2221 and near the center of the NE1/4 section 27, T. 77 S., R. 88 E.
Geology: As described by Brooks (1902) as part of the Tomboy Group, this deposit is a series of quartz veins that form topographic knolls and were reported by the owner to have been traced for about 3,000 feet. The veins are bounded on one side by marble and on the other by chlorite schist. Most of the quartz appears to be barren; some contains pyrite. Wright and Wright (1908) note that one of the claims was restaked as the Alameda, and describe the deposit as a quartz vein about 4 feet wide that strikes north and dips 50E. The vein has low gold values. The rocks in the area are part of the Wales Group of Late Proterozoic and Cambrian age (Eberlein and others, 1983; Brew, 1996). No workings are reported.
Workings: No workings are reported.
Age: Younger than the Late Proterozoic or Cambrian host rocks.
Commodities (Major) - Au
Development Status: None
Deposit Model: Low sulfide, gold-quartz vein (Cox and Singer, 1986; model 36a).
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.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | 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 | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
Other Databases
| Link to USGS - Alaska: | CR181 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Alexander DomainDomain
- Alexander TerraneVolcanic Arc
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