Unnamed Occurrence (ARDF - TR008; west of upper Hidden Creek), Juneau Mining District, Juneau, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - TR008; west of upper Hidden Creek) | - not defined - |
| Juneau Mining District | Mining District |
| Juneau | City Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
58° 24' 0'' North , 133° 44' 49'' West
Latitude & Longitude (decimal):
Köppen climate type:
Location: This occurrence is along the west side of upper Hidden Creek valley. It is just east of the center of section 18, T.40 S., R.71 E. of the Copper River Meridian. The map location is the approximate center of several reported occurrences and is accurate within 1/4 mile.
Geology: This occurrence is in the Coast Range plutonic-metamorphic complex which consists of high-grade schist and gneiss intruded by Cretaceous and Tertiary granodiorite (Brew and Ford, 1974, 1984). In 1985, the U.S. Bureau of Mines found granite float in the area that contained sparse molybdenite. Their sampling indicated anomalous values of molybdenum, barium, copper and gold. Limited reconnaissance failed to locate the bedrock source of the molybdenite-bearing float (Clough, 1990). Recent studies of other molybdenite occurrences in this area (TR002, TR003, TR006, TR007) suggest that molybdenite mineralization is associated with Paleocene-Eocene (63-50 Ma) magmatism (Miller and others, 1997).
Workings: There are no surface or underground workings and exploration has been limited.
Age: Recent studies of other molybdenite occurrences in this area (TR002, TR003, TR006, TR007) suggest that molybdenite mineralization is associated with Paleocene-Eocene (63-50 Ma) magmatism (Miller and others, 1997).
Commodities (Major) - Mo; (Minor) - Au
Development Status: None
Deposit Model: Porphyry Mo (Cox and Singer, 1986; model 21b)
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
1 valid mineral.
Detailed Mineral List:
| ⓘ Molybdenite Formula: MoS2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Molybdenite | 2.EA.30 | MoS2 |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Molybdenite | MoS2 |
| Mo | Molybdenum | |
| Mo | ⓘ Molybdenite | MoS2 |
Other Databases
| Link to USGS - Alaska: | TR008 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Coast MountainsMountain Range
North America PlateTectonic Plate
- Coast plutonic complexVolcanic Arc
- Taku DomainDomain
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