Grand Central Mine, Mammoth, Tintic Mining District, Juab County, Utah, USAi
| Regional Level Types | |
|---|---|
| Grand Central Mine | Mine |
| Mammoth | Town (Historical) |
| Tintic Mining District | Mining District |
| Juab County | County |
| Utah | State |
| USA | Country |
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Latitude & Longitude (WGS84):
39° 56' 10'' North , 112° 7' 0'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Eureka | 666 (2017) | 2.0km |
| Mount Nebo | 302 (2006) | 13.8km |
| Elberta | 256 (2011) | 14.4km |
| Goshen | 944 (2017) | 18.5km |
| Genola | 1,419 (2017) | 24.2km |
Mindat Locality ID:
4149
Long-form identifier:
mindat:1:2:4149:5
GUID (UUID V4):
e976fd9d-1b4c-4f54-ba15-a3e8c6c53ac3
A former Cu-Au-Pb-Ag occurrence/mine located in sec. 19, T10S, R2W, SLM, 1.5 km (0.9 mile) NE of Mammoth, on private (patented) land. Discovered in 1875 by a shaft sinking. First produced in 1872. Closed in 1960. Owned by the McIntyre family, Mammoth (100%), Utah (1976) [E. Steele McIntyre, Eureka, UT]. Operated by Walter Morgan. MRDS database stated accuracy for this location is 10 meters. The last serious work was by ASARCO in 1940 (Reed Welch, Geologist).
Mineralization is a Pliocene replacement deposit hosted in the Late Silurian Opohonga Limestone and A Jax Dolomite. The ore body strikes N15W to N30W, dips 80 & plunges 90 and has a depth-to-bottom of 762 meters. It is 6 meters in thickness, 70 meters wide and 850 meters long, with a depth-to-top of 250 meters. The ore body is an irregular replacement deposit. The primary mode of origin was hydrothermal activity. The secondary mode was oxidation. Primary ore control was lithology and secondary was faulting. Wallrock alteration is moderate (silicification). There are large bodies of siliceous ore, 200 feet wide in places. A second ore shoot rich in Cu was reported 700 feet to the W on the 2,000 level. Local rocks include Upper Cambrian carbonate rocks in central Utah.
Workings include underground openings with a length of 6,000 meters and an overall depth of 750 meters and/or a length of 1,609.3 meters, overall depth of 731.52 meters and an overall length of 3,218.6 meters. A winze followed the ore below the 2,400 level. The adit level is in the gulch below the shaft And the adit carried ore to the railroad. A connection was made in the 1970's from the Mammoth workings on the 1,500 and 2,100 levels. Faulted continuation of ammoth or was mined at depth.
This deposit produced 27,000 tons of ore in 1916 and similar tonnages until 1940. Most ore was shipped as smelter flux.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| β Anglesite Formula: PbSO4 |
| β Baryte Formula: BaSO4 |
| β Calcite Formula: CaCO3 |
| β Cerussite Formula: PbCO3 |
| β Chalcocite Formula: Cu2S |
| β Chalcopyrite Formula: CuFeS2 |
| β Chlorargyrite Formula: AgCl |
| β Connellite Formula: Cu19(SO4)(OH)32Cl4 · 3H2O |
| β Covellite Formula: CuS |
| β Enargite Formula: Cu3AsS4 |
| β Galena Formula: PbS |
| β Gold Formula: Au |
| β 'Jasper' |
| β 'Limonite' |
| β Quartz Formula: SiO2 |
| β Silver Formula: Ag |
| β Spangolite Formula: Cu6Al(SO4)(OH)12Cl · 3H2O References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| β | Silver | 1.AA.05 | Ag |
| β | Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| β | Chalcocite | 2.BA.05 | Cu2S |
| β | Covellite | 2.CA.05a | CuS |
| β | Chalcopyrite | 2.CB.10a | CuFeS2 |
| β | Galena | 2.CD.10 | PbS |
| β | Enargite | 2.KA.05 | Cu3AsS4 |
| Group 3 - Halides | |||
| β | Chlorargyrite | 3.AA.15 | AgCl |
| β | Connellite | 3.DA.25 | Cu19(SO4)(OH)32Cl4 Β· 3H2O |
| Group 4 - Oxides and Hydroxides | |||
| β | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| β | Calcite | 5.AB.05 | CaCO3 |
| β | Cerussite | 5.AB.15 | PbCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| β | Anglesite | 7.AD.35 | PbSO4 |
| β | Baryte | 7.AD.35 | BaSO4 |
| β | Spangolite | 7.DD.15 | Cu6Al(SO4)(OH)12Cl Β· 3H2O |
| Unclassified | |||
| β | 'Limonite' | - | |
| β | 'Jasper' | - | |
List of minerals for each chemical element
Other Databases
| Link to USGS MRDS: | 10020087 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
- Oquirrh BasinBasin
USA
- Utah
- East Tintic MountainsMountain Range
- Tintic Mining DistrictMining District
- East Tintic MountainsMountain Range
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0490230065
