Silver Circle

The Silver Circle is a copper mine located in Elko county, Nevada.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Name: Silver Circle  

State:  Nevada

County:  Elko

Elevation:

Commodity: Copper

Lat, Long: 41.78056, -114.79667

Map: View on Google Maps

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.


Satelite image of the Silver Circle

Silver Circle MRDS details

Site Name

Primary: Silver Circle
Secondary: Queen of the Hills Mine


Commodity

Primary: Copper
Secondary: Silver
Secondary: Lead
Secondary: Gold


Location

State: Nevada
County: Elko
District: Contact (48)


Land Status

Not available


Holdings

Not available


Workings

Type: Underground


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1928
Discovery Year: 1928
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Columbia Plateau
Physiographic Section: Snake River Plain


Mineral Deposit Model

Model Name: Skarn Cu


Orebody

Form: IRREGULAR TO TABULAR


Structure

Type: L
Description: Granodiorite Stock With Assoc. Faults, Fractures


Alterations

Alteration Type: L
Alteration Text: Silicification, Oxidation


Rocks

Name: Diorite
Role: Host
Age Type: Associated Rock Unit
Age Young: Late Jurassic

Name: Diorite
Role: Host
Age Type: Host Rock Unit
Age Young: Late Permian


Analytical Data

Not available


Materials

Ore: Chalcopyrite
Ore: Bornite
Ore: Galena
Ore: Chalcocite
Gangue: Diopside
Gangue: Chlorite
Gangue: Garnet
Gangue: Actinolite
Gangue: Biotite
Gangue: Tremolite
Gangue: Axinite


Comments

Comment (Geology): SULFIDE ORE PRESENT IN OUTCROPS DUE TO IMPERVIOUS AND RESISTANT NATURE OF ACTINOLITE.

Comment (Deposit): LITTLE DONE HERE PRIOR TO 1928. 1,000 TONS OF SULFIDE ORE SHIPPED FROM 1928 TO MID-1930. ORE CONTAINED 11-29% CU, WITH A LITTLE PB AND AG. THE MINE IS OPENED TO 250 FT. BY A SHAFT INCLINED 50 SOUTH AND TUNNELS DRIVEN NE-WARD. THE META-LIMESTONE IS 100 WIDE ALONG THE GRANODIORITE CONTACT, AND THE PRINCIPAL ORE ZONE WITHIN IT IS 4 1/2 TO 10 FEET WIDE (SCHRADER, 1935, P 31-2.) ; INFO.SRC : 1 PUB LIT

Comment (Production): $5,000-$100,000

Comment (Development): LITTLE DONE HERE PRIOR TO 1928. 100 TONS ORE SHIPPED FROM 1928-1930, CONTAINING 11-29% CU WITH A LITTLE PB AND AG.

Comment (Deposit): IGNEOUS CONTACT ZONE

Comment (Workings): SHAFT, TUNNELS


References

Reference (Deposit): SMITH, R.M. (1976) MINERAL RESOURCES OF ELKO CO., NEV: USGS OFR 76-56, P 39-45.

Reference (Production): SCHRADER (1935) P. 31-32

Reference (Deposit): SCHRADER, F.C. (1935) THE CONTACT MINING DISTRICT, NEVADA: USGS BUL. 847-A

Reference (Deposit): HOPE, R.A. & COATS, R.R. (1976) PRELIM. GEOLOGIC MAP OF ELKO CO., NEV: USGS OFR 76-779


Nevada Gold

Gold Districts of Nevada

Nevada has a total of 368 distinct gold districts. Of the of those, just 36 are major producers with production and/or reserves of over 1,000,000 ounces, 49 have production and/or reserves of over 100,000 ounces, with the rest having less than 100,000 ounces. Read more: Gold Districts of Nevada.