Unnamed Prospect (ARDF - HE159; at Peak 5532), Valdez Creek Mining District, Matanuska-Susitna Borough, Alaska, USAi
Regional Level Types | |
---|---|
Unnamed Prospect (ARDF - HE159; at Peak 5532) | - not defined - |
Valdez Creek Mining District | Mining District |
Matanuska-Susitna Borough | Borough |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
63° 0' 32'' North , 147° 43' 58'' West
Latitude & Longitude (decimal):
KΓΆppen climate type:
Mindat Locality ID:
202176
Long-form identifier:
mindat:1:2:202176:1
GUID (UUID V4):
9eb5ca2c-fa2b-4198-aa2c-7dfbc973c289
This deposit was discovered in the 1980s, during a regional geologic reconnaissance by the Bureau of Land Management (Balen, 1990: OFR 34-90).
Location: This prospect is on Peak 5532, at the west-central edge of sec. 15, T. 22 S., R. 1 W., of the Fairbanks Meridian. The location is accurate to within 1,000 feet. This is location B-13 of Balen (1990: 34-90).
Geology: The country rocks at this prospect are Middle or Upper Triassic Nikolai Greenstone, and probably cogenetic, ultramafic dikes that cut the greenstone. The deposit consists of disseminations and pods of chalcopyrite, chromite, pentlandite, and pyrrhotite in within the ultramafic intrusive rocks. Samples contain as much as 0.41% chromium, 0.15% copper, 0.11% nickel, 28 ppb palladium, and 140 ppb platinum (Balen and others, 1991).
Workings: There has only been surface sampling to date.
Age: The ore minerals probably are magmatic segregations in the Triassic ultramafic hostrocks.
Commodities (Major) - Cu, Pt, Pd; (Minor) - Cr, Ni
Development Status: None
Deposit Model: Cu-Ni-PGE (Cox and Singer, 1986; model 5)
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 Chromite Formula: Fe2+Cr3+2O4 |
β Pentlandite Formula: (NixFey)Ξ£9S8 |
β Pyrrhotite Formula: Fe1-xS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
β | Pentlandite | 2.BB.15 | (NixFey)Ξ£9S8 |
β | Chalcopyrite | 2.CB.10a | CuFeS2 |
β | Pyrrhotite | 2.CC.10 | Fe1-xS |
Group 4 - Oxides and Hydroxides | |||
β | Chromite | 4.BB.05 | Fe2+Cr3+2O4 |
List of minerals for each chemical element
O | Oxygen | |
---|---|---|
O | β Chromite | Fe2+Cr23+O4 |
S | Sulfur | |
S | β Chalcopyrite | CuFeS2 |
S | β Pentlandite | (NixFey)Ξ£9S8 |
S | β Pyrrhotite | Fe1-xS |
Cr | Chromium | |
Cr | β Chromite | Fe2+Cr23+O4 |
Fe | Iron | |
Fe | β Chalcopyrite | CuFeS2 |
Fe | β Chromite | Fe2+Cr23+O4 |
Fe | β Pentlandite | (NixFey)Ξ£9S8 |
Fe | β Pyrrhotite | Fe1-xS |
Ni | Nickel | |
Ni | β Pentlandite | (NixFey)Ξ£9S8 |
Cu | Copper | |
Cu | β Chalcopyrite | CuFeS2 |
Other Databases
Link to USGS - Alaska: | HE159 |
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Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Wrangellia DomainDomain
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