Metal Creek Occurrences, Anchorage Mining District, Matanuska-Susitna Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Metal Creek Occurrences | Group of Occurrences |
| Anchorage Mining District | Mining District |
| Matanuska-Susitna Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
61° 37' 47'' North , 148° 23' 23'' West
Latitude & Longitude (decimal):
Type:
Group of Occurrences
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Chickaloon | 272 (2011) | 18.9km |
| Sutton-Alpine | 1,447 (2015) | 25.7km |
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 | 38km |
Mindat Locality ID:
198847
Long-form identifier:
mindat:1:2:198847:8
GUID (UUID V4):
0af5c3d7-a40e-4c72-9a47-9a439fb09195
Abundance of scheelite in concentrates is enough to warrant prospecting of the area between Metal Creek and Glacier Fork (Richter, 1967).
Location: Near the headwaters of Metal Creek, accuracy unknown.
Geology: Country rock along Metal Creek is Valdez Group interbedded slate, siltstone, and graywacke of Late Cretaceous age that have been metamorphosed to phyllite and quartz mica schist. These rocks are tightly folded, exhibit strong foliation, strike N 10-30 E, and dip nearly vertical. At the headwaters of Metal Creek and Glacial Fork, greenstone containing discontinous dikes and one stock of quartz diorite are present (Lande, 1927). Quartz veins with pyrite and chlorite are common in the area. Samples assayed 0.02 oz/ton gold, 0.26 oz/ton silver, and 0.08 percent copper (Richter, 1967).
Workings: Richter (1967) mentions the only lode deposits of economic significance observed in place to be the small quartz diorite stock at headwaters. Samples assayed 0.02 oz/ton gold, 0.26 oz/ton silver, and 0.08 percent copper. Float samples taken downstream show same amount, 0.02 oz/ton, of gold to be present, but silver and copper were undetectable.
Age: Late Cretaceous or younger, veins cut and intrusive rocks intrude the Late Cretaceous Valdez Group sedimentary rocks.
Commodities (Major) - Ag, Au; (Minor) - Cu
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 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 |
Other Databases
| Link to USGS - Alaska: | AN162 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Chugach DomainDomain
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References
