Maggie Creek Open Pit Gold Mine, Maggie Creek Mining District, Eureka County, Nevada, USAi
| Regional Level Types | |
|---|---|
| Maggie Creek Open Pit Gold Mine | Mine |
| Maggie Creek Mining District | Mining District |
| Eureka County | County |
| Nevada | State |
| USA | Country |
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Latitude & Longitude (WGS84):
40° 47' 5'' North , 116° 13' 19'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Carlin | 2,302 (2017) | 12.7km |
| Elko | 20,279 (2017) | 39.0km |
| Crescent Valley | 392 (2011) | 50.7km |
Other/historical names associated with this locality:
NBMG Sample Sites 562; 133; Mc Leach Deposit; Deep West Orebody
Structure: Located At Se Corner Of Carlin Window In Roberts Mountains Thrust Fissures, Fractures Zones, Faulting Folding. The Less Fault, A High-Angle Ne-Striking Structure.
Alteration: Oxidation, Silicification
Commodity: There is an association of gold and pyrite in the unoxidized ore. Au:ag ratio 19:1.
Deposit: Figures are for the main pit ore zones.
Deposit type: Carbonate-hosted Au-Ag
Development: The first claims in the vicinity of maggie creek were staked in 1925 by a. Berning, who leased the property to cuba consolidated mines company. In 1936, cuba consolidated shipped 60 tons of ore averaging 0.417 opt au, 0.882 opt ag. Newmont corp. Acquired the property in 1962 and conducted a drilling program in 1963-64 in the vicinity of what is no W the northern limit of gold quarry. Drilling was centered s W of the jasperoid outcrop from which the 60 tons of ore were mined. The maggie creek claims were reacquired in 1977 and a drilling program was initiated. Development drilling began in the spring of 1978 and continued until the fall of 1979. Mining began july 1980 and ceased in 1986 when operations transferred to the adjacent gold quarry mine. Percussion drilling in 1987 revealed that the maggie creek south ore zone is continuous at depth to the east, blossoming into the upper portions of the deep west orebody. A small deposit known As mc leach occurs SW of maggie creek along extensions of the gold quarry/les fault system.
Geology: Host rocks are part of the upper plate transitional series.
Rock formation(s): Transitional Assemblage;Roberts Mountains Formation
Vinini;Vinini;Vinini;Vinini
Ore(s): The Less Fault
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
7 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Alunite Formula: KAl3(SO4)2(OH)6 |
| ⓘ Baryte Formula: BaSO4 |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Kaolinite Formula: Al2(Si2O5)(OH)4 |
| ⓘ Montmorillonite Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
| ⓘ Muscovite var. Illite Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| ⓘ | Alunite | 7.BC.10 | KAl3(SO4)2(OH)6 |
| Group 9 - Silicates | |||
| ⓘ | Muscovite var. Illite | 9.EC.15 | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| ⓘ | 9.EC.15 | KAl2(AlSi3O10)(OH)2 | |
| ⓘ | Montmorillonite | 9.EC.40 | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| ⓘ | Kaolinite | 9.ED.05 | Al2(Si2O5)(OH)4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Alunite | KAl3(SO4)2(OH)6 |
| H | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| H | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Alunite | KAl3(SO4)2(OH)6 |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| O | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| O | ⓘ Quartz | SiO2 |
| Na | Sodium | |
| Na | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Mg | Magnesium | |
| Mg | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Al | Aluminium | |
| Al | ⓘ Alunite | KAl3(SO4)2(OH)6 |
| Al | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| Al | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Si | Silicon | |
| Si | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| Si | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Alunite | KAl3(SO4)2(OH)6 |
| S | ⓘ Baryte | BaSO4 |
| K | Potassium | |
| K | ⓘ Alunite | KAl3(SO4)2(OH)6 |
| K | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
Other Databases
| Link to USGS MRDS: | 10047013 |
|---|
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