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Unnamed Occurrence (ARDF - JU018; northeast of Independence Lake), Juneau Mining District, Juneau, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - JU018; northeast of Independence Lake) | - not defined - |
| Juneau Mining District | Mining District |
| Juneau | City Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
58° 54' 0'' North , 135° 6' 28'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This occurrence is at an elevation of about 3,100 feet, approximately 1 mile northeast of Independence Lake and 1.4 mile east of Lynn Canal. It is in the S1/2 section 20 or N1/2 section 29, T. 34 S., R. 62 E. of the Copper River Meridian. The location is accurate within 1/2 mile.
Geology: The U.S. Bureau of Mines investigated this area in 1986 and 1987 in response to increased exploration activity 3 miles to the south in the Kensington area (JU029). They collected several samples of quartz and quartz-calcite veins, and calcite breccia. A 1-foot channel sample across a quartz-calcite vein in metavolcanic rock contained 50.0 ppm gold, 490 ppm copper, 70 ppm lead, and 14 ppm tungsten. Placid Oil Company staked several claims in this area in the early 1980's (Clough, 1990). The country rocks in the area of this occurrence are upper Paleozoic or Mesozoic metasedimentary and metavolcanic strata on the western margin of the Coast Plutonic-Metamorphic Complex (Brew and others, 1992).
Workings: Placid Oil Company staked several claims in this area in the early 1980's (Clough, 1990). Only surface samples have been collected.
Commodities (Major) - Au, Cu, Pb, W
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
2 valid minerals.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| 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 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
Other Databases
| Link to USGS - Alaska: | JU018 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Coast MountainsMountain Range
North America PlateTectonic Plate
- Taku DomainDomain
- Yukon-TananaVolcanic Arc
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