Alps mine, Treasure Hill, Pioche, Pioche Mining District, Lincoln County, Nevada, USAi
| Regional Level Types | |
|---|---|
| Alps mine | Mine |
| Treasure Hill | Hill |
| Pioche | Town |
| Pioche Mining District | Mining District |
| Lincoln County | County |
| Nevada | State |
| USA | Country |
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Latitude & Longitude (WGS84):
37° 54' 56'' North , 114° 25' 48'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Structure: Highland Thrust Plate, Major Nw Trending Normal Faults Thrust Fault And Faults Cutting Off Ore And Yuba Dike.
Alteration: Sericitic Alteration Of Yuba Dike.
Commodity: Unusually high gold content for pioche ore
Deposit: Ore body faulted off at about 300 ft depth. Quartzite highly brecciated and cemented by silica stained with Mn-Fe oxides. Phyllitic shale observed on dump along with abundant gossan. Galena occurs As clots and stringers in quartz vein which cuts white quartzite along with minor pyrite. Copper oxides and crystalline jarosite along with mustard yellow oxides (sb oxides?) coat fractures and breccia fragments. Yuba dike extends to general vicinity of the mine, where it has been intersected at depth. On the east, the vein has been cut off by a fault that strikes n55w, dip 55sw. 3 veins present, reported to contain "5-10 oz Ag to each unit of Pb". 2 of the veins coincide with the hanging wall and footwall of the yuba dike, while the so-called "middle vein" is along a set of fractures paralleling the strike of and wholly contained within the dike.
Deposit type: Polymetallic veins
Development: Alps silver mining co owned the old floral mill. No activity at time of examination in 1983, but tailings had been milled recently and one shaft was being used As a landfill. One of the oldest mines in the district, the alps shaft had already been sunk to a depth of 115 ft by 1871.
Geology: Ore occurs in fissure vein and brecciated zones of pb carbonate in a quartz gangue, which is usually white. The main vein is 1 to 4 feet thick. At depth the vein terminates against shale. Host rocks are white to grey banded quartzite dipping s W up to 40, phyllitic shales. Granite porphyry dike (yuba dike) 40 ft wide, dip 70s.
Rock formation(s): Yuba Dike; Prospect Mountain Quartzite
Ore(s): Faulting. Extension Of Yuba Dike Intersecting With A Cross-Fissure; Brecciation.
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
5 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:
| ⓘ Galena Formula: PbS |
| ⓘ Jarosite Formula: KFe3+3(SO4)2(OH)6 |
| ⓘ Native Gold Formula: Au |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Jarosite | 7.BC.10 | KFe3+3(SO4)2(OH)6 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| O | Oxygen | |
| O | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Galena | PbS |
| S | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| S | ⓘ Pyrite | FeS2 |
| K | Potassium | |
| K | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| Fe | Iron | |
| Fe | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| Fe | ⓘ Pyrite | FeS2 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10037328 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Antler Foreland BasinBasin
- Basin and Range BasinsBasin
- Mojave DomainDomain
- Northern Basin and RangeWide Rift
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