Eklutna Tunnel Occurrence, Anchorage Mining District, Matanuska-Susitna Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Eklutna Tunnel Occurrence | Occurrence |
| Anchorage Mining District | Mining District |
| Matanuska-Susitna Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
61° 28' 11'' North , 149° 9' 0'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Butte | 3,246 (2011) | 10.2km |
| Gateway | 5,552 (2011) | 12.4km |
| Knik River | 744 (2011) | 12.7km |
| Palmer | 6,788 (2017) | 14.5km |
| Lakes | 8,364 (2011) | 17.4km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Mat-Su Rock and Mineral Club | Palmer, Alaska | 15km |
| Chugach Gem & Mineral Society | Anchorage, Alaska | 49km |
Rose (1966) reports several other cinnabar occurrences in the Eklutna River drainage and farther southwest near Turnagain Arm, but there is no record of the exact location or extent of any of the occurrences.
Location: Occurrence is reported by Rose (1966) as being inside the Eklutna Tunnel (marked AQUEDUCT on map), 300 ft from the north end of the tunnel. The tunnel runs through East Twin Peak, connecting Eklutna Lake with the Eklutna Powerhouse (on south side of Old Glenn Highway). Location is accurate within a few tens of feet. Locality 44 of Cobb (1972) and locality 33 of MacKevett and Holloway (1977).
Geology: Athern and Judd (1956) report a very small kidney of cinnabar reported in a 10 ft length of fault gouge about 300 ft from the north end of Eklutna tunnel. The bedrock in the area consists of graywacke and minor interbedded argillite of the Mesozoic McHugh Complex and nearby ultramafic rocks of Middle to Early Jurassic age.
Workings: Underground mapping and sampling.
Age: Host is Mesozoic.
Commodities (Major) - Hg
Development Status: None
Deposit Model: Almaden Hg ? (Cox and Singer, 1986; model 27b ?)
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.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Cinnabar | 2.CD.15a | HgS |
Other Databases
| Link to USGS - Alaska: | AN093 |
|---|
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