Windy Creek Mine, Yentna Mining District, Matanuska-Susitna Borough, Alaska, USAi
Regional Level Types | |
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Windy Creek Mine | Mine |
Yentna Mining District | Mining District |
Matanuska-Susitna Borough | Borough |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
62° 27' 32'' North , 151° 1' 30'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Mindat Locality ID:
202965
Long-form identifier:
mindat:1:2:202965:1
GUID (UUID V4):
3114cad1-ce20-4aae-9bba-fac2e06f0d8b
Deposit appears to be of glaciofluvial origin, similar to Nugget (TL035) and Bird Creek (TL040) placers. See also Cache Creek (TL029).
Location: C.C. Hawley and Associates, Inc. (1978, Fig. 42.-B(3)) locate this property on a small tributary that enters Cache Creek between Falls and Dollar Creeks, near the locality shown as Sunset on the published 15 minute map, in the southwest quarter of Section 6, T. 27 N., R. 9 W., of the Seward Meridian. Reed and others (1978) show this as locality 73.
Geology: The Windy Creek deposit consists of 40 to 60 feet of gravel with the lower 6 feet stained and cemented by iron oxides and hydroxides, overlain by glacial mud containing large angular boulders. Gold occurs in the lower iron-stained 6 feet. The gravel averages 5 inches in diameter with some boulders from 1 to 3 feet in diameter. Glacial mud layer is overlain by 20 feet of gravel containing abundant pyrite (Capps, 1913; C.C. Hawley and Associates, Inc., 1978). Concentrates contain arsenopyrite, cassiterite, native copper, gold, ilmenite, magnetite, pyrite, scheelite, garnet, quartz and zircon (Cobb and Reed, 1980). This deposit appears to be of glaciofluvial origin, similar to Nugget (TL035) and Bird Creek (TL040) placers. See also Cache Creek (TL029).
Workings: The drainage has been prospected and mined by various small scale surface methods.
Age: Pleistocene.
Commodities (Major) - Au, Cu, Sn, W
Development Status: Yes; small.
Deposit Model: Placer Au-PGE (Cox and Singer, 1986; model 39a).
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
10 valid minerals.
Detailed Mineral List:
β Arsenopyrite Formula: FeAsS |
β Cassiterite Formula: SnO2 |
β Copper Formula: Cu |
β 'Garnet Group' Formula: X3Z2(SiO4)3 |
β Gold Formula: Au |
β Ilmenite Formula: Fe2+TiO3 |
β Magnetite Formula: Fe2+Fe3+2O4 |
β Pyrite Formula: FeS2 |
β Quartz Formula: SiO2 |
β Scheelite Formula: Ca(WO4) |
β Zircon Formula: Zr(SiO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
β | Copper | 1.AA.05 | Cu |
β | Gold | 1.AA.05 | Au |
Group 2 - Sulphides and Sulfosalts | |||
β | Pyrite | 2.EB.05a | FeS2 |
β | Arsenopyrite | 2.EB.20 | FeAsS |
Group 4 - Oxides and Hydroxides | |||
β | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
β | Ilmenite | 4.CB.05 | Fe2+TiO3 |
β | Quartz | 4.DA.05 | SiO2 |
β | Cassiterite | 4.DB.05 | SnO2 |
Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
β | Scheelite | 7.GA.05 | Ca(WO4) |
Group 9 - Silicates | |||
β | Zircon | 9.AD.30 | Zr(SiO4) |
Unclassified | |||
β | 'Garnet Group' | - | X3Z2(SiO4)3 |
List of minerals for each chemical element
O | Oxygen | |
---|---|---|
O | β Cassiterite | SnO2 |
O | β Ilmenite | Fe2+TiO3 |
O | β Magnetite | Fe2+Fe23+O4 |
O | β Quartz | SiO2 |
O | β Scheelite | Ca(WO4) |
O | β Zircon | Zr(SiO4) |
O | β Garnet Group | X3Z2(SiO4)3 |
Si | Silicon | |
Si | β Quartz | SiO2 |
Si | β Zircon | Zr(SiO4) |
Si | β Garnet Group | X3Z2(SiO4)3 |
S | Sulfur | |
S | β Arsenopyrite | FeAsS |
S | β Pyrite | FeS2 |
Ca | Calcium | |
Ca | β Scheelite | Ca(WO4) |
Ti | Titanium | |
Ti | β Ilmenite | Fe2+TiO3 |
Fe | Iron | |
Fe | β Arsenopyrite | FeAsS |
Fe | β Ilmenite | Fe2+TiO3 |
Fe | β Magnetite | Fe2+Fe23+O4 |
Fe | β Pyrite | FeS2 |
Cu | Copper | |
Cu | β Copper | Cu |
As | Arsenic | |
As | β Arsenopyrite | FeAsS |
Zr | Zirconium | |
Zr | β Zircon | Zr(SiO4) |
Sn | Tin | |
Sn | β Cassiterite | SnO2 |
W | Tungsten | |
W | β Scheelite | Ca(WO4) |
Au | Gold | |
Au | β Gold | Au |
Other Databases
Link to USGS - Alaska: | TL027 |
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Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Farewell buried DomainDomain
- Susitna BasinBasin
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