NBMG Sample Site 2305, Gold Run Mining District, Humboldt County, Nevada, USAi
| Regional Level Types | |
|---|---|
| NBMG Sample Site 2305 | Occurrence |
| Gold Run Mining District | Mining District |
| Humboldt County | County |
| Nevada | State |
| USA | Country |
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Latitude & Longitude (WGS84):
40° 49' 50'' North , 117° 31' 46'' West
Latitude & Longitude (decimal):
Locality type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Golconda | 214 (2011) | 14.0km |
| Winnemucca | 7,887 (2017) | 23.4km |
Alteration: Silicification; Argillization
Deposit: Iron oxide minerals occur in quartz vein matter and silicified rock along a fault zone cutting olive phyllite, workings are quite shallow, entirely in the oxidized zone. Stoping was done along the fault, up to 1 m wide. Brecciation for several meters away from the fault is common. Vein quartz is spotty, often crushed. Sericite (green) or illite occurs in the crushed phyllite in the central part of the fault zone. The workings examined here are along a north-trending line of pits, adits, and shafts extending for over 1.5 km n-s. Examination of pits to the south indicates that this thrust fault continues and is the mineralized structure at the inclined shafts in N W 4 sec 18, t 34 n, r 40 e. The structure probably also continues to the north along the line of workings in W 2, sec 7, t 34 n, r 40 e. The more extensive workings are in n W 4, sec 18.
Deposit type: Polymetallic veins
Development: No activity in 1984, but a rotary drill hole 100m s W was probably drilled within the last fe W years.
Rock formation(s): Preble
Ore(s): N 15 E, 25-30 W Fault Zone
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
3 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:
| β Gold Formula: Au Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Muscovite Formula: KAl2(AlSi3O10)(OH)2 Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Muscovite var. Sericite Formula: KAl2(AlSi3O10)(OH)2 Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Quartz Formula: SiO2 Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| β | Gold | 1.AA.05 | Au |
| Group 4 - Oxides and Hydroxides | |||
| β | Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| β | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| β | var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| H | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | Oxygen | |
| O | β Quartz | SiO2 |
| O | β Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| O | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | Aluminium | |
| Al | β Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Al | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | β Quartz | SiO2 |
| Si | β Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | Potassium | |
| K | β Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| K | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Au | Gold | |
| Au | β Gold | Au |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Garside, L.J., (1984), NBMG Sample Site 2305, Field Examination 22 Jun84, and Sample Analysis
Willden, R., (1964), NBMG Bull 59.
Other Databases
| Link to USGS MRDS: | 10047312 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
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