Golden Sage Project, Ten Mile Mining District, Humboldt County, Nevada, USAi
Regional Level Types | |
---|---|
Golden Sage Project | Project |
Ten Mile Mining District | Mining District |
Humboldt County | County |
Nevada | State |
USA | Country |
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Latitude & Longitude (WGS84):
40° 59' 54'' North , 118° 7' 2'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Winnemucca | 7,887 (2017) | 32.2km |
Imlay | 171 (2011) | 37.6km |
Humboldt | 119 (2011) | 45.4km |
Other/historical names associated with this locality:
Main Zone; Central Zone
Structure: Mineralization is controlled by bedding plane faults and fractures that crosscut bedding,
Alteration: pervasive alteration
Commodity: Ore Materials: gold, electrum, petzite, possibly sulfides Gangue Materials: quartz, adularia
Deposit: Mineralization occurs in pervasively altered volcanic rocks containing anomalous amounts of antimony, arsenic and mercury, indicator elements for epithermal gold deposits. Mineralization is comprised of stockworks and veins which are typically open spaced and vuggy grading into wider silicified zones at depth. The mines in the area worked oxidized deposits with all workings stopping just above sulfide ore. High-grade gold pockets (typically greater than 30 g/t Au (1 opt Au) were located with a metal detector and appear to be localized along a fault surface. Most of the gold is found along the footwall, where open-space-filling occurred during gold deposition; gold was concentrated in areas where solutions poold. The presence of some microbreccia and pebble-breccia fragments suggest that the fault was reactivated post-mineralization. Occasionally euhedral gold leaves are found rolled up with and within small breccia fragments, also indicating post gold movement. Mineralization appears to follow bedding plane faults and fractures that crosscut bedding, the largest observed gold-bearing strikes N. 55-60E and dips to the 55-65 NW. A second location where gold was found in situ is at the intersection of N-S and NE-SW- trending structures that converge and can be traced to the surface. Evidence exists of supergene enrichment in the upper zones where some exceptionally rich pockets of gold were found concentrated in favorable structural traps. Thus, crystalline native gold is believed to be bi-modal in origin.
Deposit type: Low-sulfide Au-quartz vein
Development: The Ten Mile district was reportedly active from about the early 1900s to the 1940s, with some production judging from the size of the dumps of the old underground workings.No significant production has occurred since then, although several claims are active in the area and in recent years prospectors with metal detectors have reported substantial finds of nuggets and pocket gold around the district. Early in 1997, Blue Desert Mining Inc. commenced a reverse circulation drilling project at the Golden Sage property where previous drilling had outlined a 500,000-oz gold resource located along the range front faults at the base of Blue Mountain. Difficult drilling conditions led to the suspension of drilling after only seven holes were completed, some of which fell short of their target depth. Drilling intersected pervasively altered volcanic rocks containing anomalous amounts of antimony, arsenic and mercury, indicator elements for epithermal gold deposits.
Ore(s): Mineralization is controlled by bedding plane faults and fractures that crosscut bedding,
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.
Detailed Mineral List:
ⓘ Gold Formula: Au Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
ⓘ Gold var. Electrum Formula: (Au,Ag) Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
ⓘ 'K Feldspar' Formula: KAlSi3O8 Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
ⓘ 'K Feldspar var. Adularia' Formula: KAlSi3O8 Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
ⓘ Petzite Formula: Ag3AuTe2 Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
ⓘ 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 | |||
---|---|---|---|
ⓘ | Gold | 1.AA.05 | Au |
ⓘ | var. Electrum | 1.AA.05 | (Au,Ag) |
Group 2 - Sulphides and Sulfosalts | |||
ⓘ | Petzite | 2.BA.75 | Ag3AuTe2 |
Group 4 - Oxides and Hydroxides | |||
ⓘ | Quartz | 4.DA.05 | SiO2 |
Unclassified Minerals, Rocks, etc. | |||
ⓘ | 'K Feldspar' | - | KAlSi3O8 |
ⓘ | 'var. Adularia' | - | KAlSi3O8 |
List of minerals for each chemical element
O | Oxygen | |
---|---|---|
O | ⓘ Quartz | SiO2 |
O | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
O | ⓘ K Feldspar | KAlSi3O8 |
Al | Aluminium | |
Al | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
Al | ⓘ K Feldspar | KAlSi3O8 |
Si | Silicon | |
Si | ⓘ Quartz | SiO2 |
Si | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
Si | ⓘ K Feldspar | KAlSi3O8 |
K | Potassium | |
K | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
K | ⓘ K Feldspar | KAlSi3O8 |
Ag | Silver | |
Ag | ⓘ Gold var. Electrum | (Au,Ag) |
Ag | ⓘ Petzite | Ag3AuTe2 |
Te | Tellurium | |
Te | ⓘ Petzite | Ag3AuTe2 |
Au | Gold | |
Au | ⓘ Gold | Au |
Au | ⓘ Gold var. Electrum | (Au,Ag) |
Au | ⓘ Petzite | Ag3AuTe2 |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)D.A. Davis and J. V. Tingley, (1999), Gold and silver resources in Nevada, NBMG Map 120
Bowell, R.J., Hunerlach, M.P., Parshley, J., and Sears, S., (2000), The Ten Mile mining district, Winnemucca, Nevada: Geology, mineralogy and supergene gold enrichment, in Cluer, J.K., Price, J.G., Struhsacker, E.M., Hardyman, R.F., and Morris, C.L., eds., Geology and ore Deposits 2000: The Great Basin and Beyond: Geological Society of Nevada Symposium Proceedings, Reno/Sparks, May (2000), p. 349-363.
Willden, R., (1964), Geology and mineral deposits of Humboldt County,
Other Databases
Link to USGS MRDS: | 10310413 |
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