Skookum Chief Prospect, Juneau Mining District, Juneau, Alaska, USAi
| Regional Level Types | |
|---|---|
| Skookum Chief Prospect | Prospect |
| Juneau Mining District | Mining District |
| Juneau | City Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
58° 16' 12'' North , 134° 24' 43'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Juneau | 32,756 (2017) | 3.6km |
Mindat Locality ID:
199992
Long-form identifier:
mindat:1:2:199992:4
GUID (UUID V4):
0aa2e0eb-e3b6-4ee8-a591-dc83b4aa040c
Location: The Skookum Chief prospect is at an elevation of approximately 800 feet on Douglas Island, 1/2 mile west of Douglas. It is in the NE1/4 SW1/4 section 35, T. 41 S., R. 67 E. of the Copper River Meridian. The location is accurate.
Geology: The Skookum Chief prospect was discovered prior to 1936 when native gold was found in a thin layer of debris on bedrock. There are 5 open cuts on the prospect (Redman and others, 1989). The country rocks at this prospect consist of black phyllite and a 150-foot thick greenstone unit. The deposit consists of quartz veins and stringers in the greenstone. The quartz is sheared. Pyrite and native gold occur in the quartz and along fractures in the greenstone (Wells and others, 1986). The rocks in the general area are Upper Jurassic or Cretaceous marine argillite and graywacke, interbedded with andesite or basalt (Brew and Ford, 1985). The bedded rocks are regionally metamorphosed to prehnite-pumpellyite or greenschist grade, and cut by diorite or gabbro dikes and sills.
Workings: The deposit at the Skookum Chief prospect was discovered prior to 1936 when native gold was found in a thin layer of debris on bedrock. There are 5 open cuts on the prospect (Redman and others, 1989).
Commodities (Major) - Au
Development Status: None
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 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| 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 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
Other Databases
| Link to USGS - Alaska: | JU195 |
|---|
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References
