Emma E Claim

The Emma E Claim is a gold mine located in Eureka 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

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.

Site Name

Primary: Emma E Claim
Secondary: Roberts Mining Co.
Secondary: Mill Canyon Mine

Commodity

Primary: Gold
Secondary: Silver
Tertiary: Lead
Tertiary: Zinc
Tertiary: Copper

Location

State: Nevada
County: Eureka
District: Cortez District

Land Status

Land ownership: Federal
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Not available

Workings

Not available

Ownership

Owner Name: Roberts Mining Co.

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1938
Discovery Year: 1938
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Great Basin
Physiographic Detail: Basin And Mountains

Mineral Deposit Model

Model Name: Polymetallic veins

Orebody

Form: TABULAT

Structure

Type: R
Description: Roberts Mtn Thrust

Alterations

Alteration Type: L
Alteration Text: Silification & Bleaching Of Carborate Near Fissure Veins

Rocks

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Jurassic

Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Late Devonian

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Jurassic

Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Devonian

Analytical Data

Not available

Materials

Ore: Chalcopyrite
Ore: Pyrite
Ore: Sphalerite
Ore: Galena
Ore: Argentite
Gangue: Quartz
Gangue: Calcite

Comments

Comment (Deposit): FISSURE VEINS IN SHEAR ZONES

Comment (Geology): GENERALLY NORTH TRENDING SHEAR ZONES WERE IN VADED BY HYDROTHERAND ORE FLUIDS

References

Reference (Production): ROBERTS, R.J., ETAL., (1967)

Reference (Deposit): ROBERT RJ, ETAL (1967) GEOLGOY AND MINERAL RESOURCES OF EUREKA CO., NEV. BUR. OF MINES BULL 64

Reference (Deposit): USBM (WINNEMUCCA) MILS NO. 41, REF. NO. 3201100019, MINERAL PROPERTY FILE 37.053

Reference (Deposit): VANDERBURG W.O. (1938) RECONNAISSANCE OF MINING DISTRICTS IN EUREKA CO. NEV., USBM I.C. 7022

Reference (Deposit): GILLULY J. & MASURSKY H. (965) GEOLOGY OF THE CORTEZ QUADRANGLE NEV., USGS BULL 1175

Nevada Gold

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.