Little Susitna River Occurrence, Willow Creek Mining District, Matanuska-Susitna Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Little Susitna River Occurrence | Occurrence |
| Willow Creek Mining District | Mining District |
| Matanuska-Susitna Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
61° 47' 24'' North , 149° 8' 24'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Fishhook | 4,679 (2011) | 7.2km |
| Buffalo Soapstone | 855 (2011) | 8.5km |
| Farm Loop | 1,028 (2011) | 16.8km |
| Sutton-Alpine | 1,447 (2015) | 19.8km |
| Lazy Mountain | 1,479 (2011) | 20.9km |
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 | 21km |
Mindat Locality ID:
198555
Long-form identifier:
mindat:1:2:198555:2
GUID (UUID V4):
0da9a13b-8bba-4cfe-b988-8c9fcc11cc28
Location: Multiple occurrences along upper reaches of Little Susitna River, centered near VABM Creek. Accurate within 1.5 miles upstream and downstream from plotted point. Locality 77-84 of Cobb (1972).
Geology: Concentrate samples in stream gravels contain a few grains of scheelite and chalcopyrite (Jasper, 1967). Assays yielded up to 110 ppm Cu and 5 ppm Mo (Jasper, 1967). Nearby crystalline rocks include Tertiary to Cretaceous biotite-hornblende tonalite, and Jurassic amphibolite and foliated quartz diorite. Creek float dominantly quartz diorite.
Workings: Assays yielded up to 110 ppm Cu and 5 ppm Mo (Jasper, 1967). Other pan concentrates include magnetite, pyrite, and zircon.
Age: Jurassic or younger, based on ages of bedrock in the area.
Commodities (Major) - Cu, 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
4 valid minerals.
Detailed Mineral List:
| β Chalcopyrite Formula: CuFeS2 |
| β Magnetite Formula: Fe2+Fe3+2O4 |
| β Pyrite Formula: FeS2 |
| β Scheelite Formula: Ca(WO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| β | Chalcopyrite | 2.CB.10a | CuFeS2 |
| β | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| β | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| β | Scheelite | 7.GA.05 | Ca(WO4) |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | β Magnetite | Fe2+Fe23+O4 |
| O | β Scheelite | Ca(WO4) |
| S | Sulfur | |
| S | β Chalcopyrite | CuFeS2 |
| S | β Pyrite | FeS2 |
| Ca | Calcium | |
| Ca | β Scheelite | Ca(WO4) |
| Fe | Iron | |
| Fe | β Chalcopyrite | CuFeS2 |
| Fe | β Magnetite | Fe2+Fe23+O4 |
| Fe | β Pyrite | FeS2 |
| Cu | Copper | |
| Cu | β Chalcopyrite | CuFeS2 |
| W | Tungsten | |
| W | β Scheelite | Ca(WO4) |
Other Databases
| Link to USGS - Alaska: | AN062 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Wrangellia DomainDomain
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References
