Unnamed Occurrence (ARDF - HE164; near VABM Way), Valdez Creek Mining District, Matanuska-Susitna Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - HE164; near VABM Way) | - not defined - |
| Valdez Creek Mining District | Mining District |
| Matanuska-Susitna Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
63° 2' 2'' North , 147° 38' 24'' West
Latitude & Longitude (decimal):
KΓΆppen climate type:
Mindat Locality ID:
200780
Long-form identifier:
mindat:1:2:200780:2
GUID (UUID V4):
e1691682-8061-4d80-b0f5-187987f02510
Location: This occurence is at an elevation of approximately 5,000 feet, 0.6 mile NW of VABM Way and about 2 miles south of Butte Creek. The site is in sec. 6, T. 22 S., R. 1 E., of the Fairbanks Meridian. The location is accurate to within 1000 feet. This is location 37 of Clark and Cobb (1972).
Geology: This occurrence is hosted in Middle Triassic to Upper Pennsylvanian metasedimentary rocks, cut by numerous diabasic and gabbroic dikes and sills (Wilson and others, 1998). The deposit consists of copper sulfides disseminated in the mafic units, and of magnetite along fault zones separating limestone and argillite. The sulfide minerals are bornite, chalcopyrite, and pyrite. Malachite and azurite occur in cross-cutting carbonate veins. Some of the sulfide minerals probably are syngenetic with emplacement of their Upper Paleozoic or Triassic mafic hostrocks. The bornite may represent subsequent supergene enrichment.
Workings: Surface workings and exploration only.
Age: Some of the sulfide minerals probably are syngenetic with their Upper Paleozoic Triassic mafic host rocks. The bornite may represent subsequent supergene enrichment.
Commodities (Major) - Cu, Fe
Development Status: None
Deposit Model: Cyprus massive sulfide (Cox and Singer, 1986; model 24a)
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
8 valid minerals.
Detailed Mineral List:
| β Azurite Formula: Cu3(CO3)2(OH)2 |
| β Bornite Formula: Cu5FeS4 |
| β Calcite Formula: CaCO3 |
| β Chalcopyrite Formula: CuFeS2 |
| β Magnetite Formula: Fe2+Fe3+2O4 |
| β Malachite Formula: Cu2(CO3)(OH)2 |
| β Pyrite Formula: FeS2 |
| β Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| β | Bornite | 2.BA.15 | Cu5FeS4 |
| 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 |
| β | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| β | Calcite | 5.AB.05 | CaCO3 |
| β | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
| β | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Azurite | Cu3(CO3)2(OH)2 |
| H | β Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | β Azurite | Cu3(CO3)2(OH)2 |
| C | β Calcite | CaCO3 |
| C | β Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | β Azurite | Cu3(CO3)2(OH)2 |
| O | β Calcite | CaCO3 |
| O | β Magnetite | Fe2+Fe23+O4 |
| O | β Malachite | Cu2(CO3)(OH)2 |
| O | β Quartz | SiO2 |
| Si | Silicon | |
| Si | β Quartz | SiO2 |
| S | Sulfur | |
| S | β Bornite | Cu5FeS4 |
| S | β Chalcopyrite | CuFeS2 |
| S | β Pyrite | FeS2 |
| Ca | Calcium | |
| Ca | β Calcite | CaCO3 |
| Fe | Iron | |
| Fe | β Bornite | Cu5FeS4 |
| Fe | β Chalcopyrite | CuFeS2 |
| Fe | β Magnetite | Fe2+Fe23+O4 |
| Fe | β Pyrite | FeS2 |
| Cu | Copper | |
| Cu | β Azurite | Cu3(CO3)2(OH)2 |
| Cu | β Bornite | Cu5FeS4 |
| Cu | β Chalcopyrite | CuFeS2 |
| Cu | β Malachite | Cu2(CO3)(OH)2 |
Other Databases
| Link to USGS - Alaska: | HE164 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Wrangellia DomainDomain
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References
