Fourmile Mining District (Timberlake Creek Mining District), Moffat County, Colorado, USAi
| Regional Level Types | |
|---|---|
| Fourmile Mining District (Timberlake Creek Mining District) | Mining District |
| Moffat County | County |
| Colorado | State |
| USA | Country |
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Latitude & Longitude (WGS84):
40° 51' 18'' North , 107° 40' 46'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Commodities (Major) - Gold; (Minor) - Silver; (Trace) - Iron, REE, Niobium (Columbium), Thorium, Titanium - Metal
Deposit Type: Placer
Development Status: Past Producer
Host Rock Unit: Cathedral Bluffs Member Of Wasatch Formation, Unconsolidated Deposits--Alluvium
Structure: Washakie Basin
Host Rock: Sand And Gravel, Conglomerate
Tectonic Structure: Colorado Platform
Deposit Type: Placer
Development Status: Past Producer
Host Rock Unit: Cathedral Bluffs Member Of Wasatch Formation, Unconsolidated Deposits--Alluvium
Structure: Washakie Basin
Host Rock: Sand And Gravel, Conglomerate
Tectonic Structure: Colorado Platform
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded from this region.Mineral List
Mineral list contains entries from the region specified including sub-localities9 valid minerals.
Rock Types Recorded
Rock list contains entries from the region specified including sub-localities
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ 'Allanite Group' Formula: (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| ⓘ 'Columbite-(Fe)-Columbite-(Mn) Series' |
| ⓘ Euxenite-(Y) Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 |
| ⓘ Ilmenite Formula: Fe2+TiO3 |
| ✪ Kaolinite Formula: Al2(Si2O5)(OH)4 Locality: Dry Gulch, Fourmile Mining District (Timberlake Creek Mining District), Moffat County, Colorado, USA Habit: Smooth Kaolinite Banding Colour: White Description: Kaolinite on Crustaceous Life. References: |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 |
| ⓘ 'Monazite Group' Formula: REE(PO4) |
| ⓘ Native Gold Formula: Au Localities: Reported from at least 16 localities in this region. Habit: Flour Gold Colour: Gold Description: Flour Gold. |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Rutile Formula: TiO2 |
| ⓘ Xenotime-(Y) Formula: Y(PO4) |
| ⓘ Zircon Formula: Zr(SiO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Rutile | 4.DB.05 | TiO2 |
| ⓘ | Euxenite-(Y) | 4.DG.05 | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Xenotime-(Y) | 8.AD.35 | Y(PO4) |
| Group 9 - Silicates | |||
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | Kaolinite | 9.ED.05 | Al2(Si2O5)(OH)4 |
| Unclassified | |||
| ⓘ | 'Monazite Group' | - | REE(PO4) |
| ⓘ | 'Columbite-(Fe)-Columbite-(Mn) Series' | - | |
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
| ⓘ | 'Allanite Group' | - | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| H | ⓘ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| O | Oxygen | |
| O | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Monazite Group | REE(PO4) |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Rutile | TiO2 |
| O | ⓘ Xenotime-(Y) | Y(PO4) |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Columbite-(Fe)-Columbite-(Mn) Series | |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| O | ⓘ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| Al | Aluminium | |
| Al | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | Silicon | |
| Si | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Si | ⓘ Allanite Group | (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH) |
| P | Phosphorus | |
| P | ⓘ Monazite Group | REE(PO4) |
| P | ⓘ Xenotime-(Y) | Y(PO4) |
| Ca | Calcium | |
| Ca | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Ti | Titanium | |
| Ti | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Ti | ⓘ Rutile | TiO2 |
| Mn | Manganese | |
| Mn | ⓘ Columbite-(Fe)-Columbite-(Mn) Series | |
| Fe | Iron | |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Columbite-(Fe)-Columbite-(Mn) Series | |
| Y | Yttrium | |
| Y | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Y | ⓘ Xenotime-(Y) | Y(PO4) |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Nb | Niobium | |
| Nb | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Nb | ⓘ Columbite-(Fe)-Columbite-(Mn) Series | |
| Ce | Cerium | |
| Ce | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Ta | Tantalum | |
| Ta | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
| Th | Thorium | |
| Th | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| U | Uranium | |
| U | ⓘ Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
Localities in this Region
- Colorado
- Moffat County
- Fourmile Mining District (Timberlake Creek Mining District)
- Moffat County
- Colorado
- Moffat County
- Fourmile Mining District (Timberlake Creek Mining District)
- Placer Mine (MRDS - 10013450)
- Placer Mine (MRDS - 10013451)
- Placer Mine (MRDS - 10013452)
- Placer Mine (MRDS - 10097859)
- Placer Mines (MRDS - 10013453)
- Rock Springs Placer Company Mine
- Timberlake Mining and Development Company Placer
- Utah Mining Company Property
- West Side Mining Association Placer Mine
- Fourmile Mining District (Timberlake Creek Mining District)
- Moffat County
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Brown’s Park BasinBasin
- Great Plains DomainDomain
- Idaho-Wyoming Thrust Belt–Greater Green River BasinBasin
- Middle Rocky MountainsOrogenic Belt
USA
- Green River FormationFormation
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References
Law Dredge Mine, Fourmile Mining District, Moffat County, Colorado, USA