The Delmas Mine is a copper, silver, and lead 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
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.
Delmas Mine MRDS details
Site Name
Primary: Delmas Mine
Secondary: Sweepstakes
Secondary: Como
Commodity
Primary: Copper
Primary: Silver
Primary: Lead
Secondary: Gold
Secondary: Zinc
Location
State: Nevada
County: Elko
District: Railroad
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Delmas Copper Co.
Owner Name: Delmas Copper Co
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Contact Metamorphic
Operation Type: Unknown
Year First Production: 1906
Discovery Year: 1906
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Model Name: Skarn Cu
Orebody
Form: TABULAR TO IRREGULAR
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Silificion
Rocks
Name: Quartz Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Devonian
Name: Quartz Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene
Name: Quartz Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Name: Quartz Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Devonian
Analytical Data
Not available
Materials
Ore: Pyrite
Ore: Pyrrhotite
Ore: Bornite
Ore: Sphalerite
Ore: Chalcopyrite
Ore: Chalcocite
Ore: Copper
Ore: Galena
Gangue: Zoisite
Gangue: Quartz
Gangue: Pyroxene
Gangue: Tremolite
Gangue: Garnet
Gangue: Diopside
Comments
Comment (Geology): SOME GOLD-BEARING QUARTZ VEINS OCCUR IN THE GRANITE PORPHYRY
Comment (Deposit): TACTITE BODY AT CONTACT OF GRANITE PORPHYRY WITH LIMESTONE ALSO, SOME GOLD-BEARING QUARTZ VEINS.
Comment (Workings): SHALLOW PITS AND ADITS
Comment (Deposit): THE DELMAS COPPER CO., OWNER OF SEVERAL CLAIMS, DEVELOPED THEIR PROPERTY BY MEANS OF SHALLOW PITS AND ADITS TO EXPLORE THE COPPER ORE DEPOSITS IN THE TACTITE BODY WHICH EXTENDS IN A ZONE OVER 2000' LONG, AND 125'-400' WIDE. MUCH OF THE EARLY DEVELOPMENT WAS COMPLETED FROM 1906-1908. THIS ACTIVITY RESULTED IN THE SHIPPING OF ORE TO THE UTAH SMETTERS. THE SWEEPSTAKES CLAIM IS THE MOST EXTENSIVELY EXPLORED. ORE SHIPPED RAN AS HIGH AS 70 OZ. OF SILVER, 10.4% COPPER, AND 2.8% LEAD. THE HIGHEST GRADE ORE CARRIES CHALCOCITE COATED SULPHIDES ; INFO.SRC : 1 PUB LIT
Comment (Production): ORE SHIPPED RAN AS HIGH AS 70 OZ/TON AG, 10.4% CU; 2.8% PB. ORE ALSO CARRIER SOME GOLD & ZINC.
Comment (Development): EARLY DEVELOPMENT TOOK PLACE 1906 TO 1908, WHEN ORE WAS SHIPPED TO UTAH SMELTERS
Comment (Location): N W PRONG OF BUNDER HILL
References
Reference (Deposit): EMMONS, W. H., 1910, A RECONNASSANCE OF SOME MINING CAMPS IN ELKO, LANDER AND EURELSA COUNTIES, NEVADA: USGS BULLETIN 408
Reference (Deposit): SMITH, R. M., MINERAL RESOURCES OF ELKO COUNTY, NEVADA, USGS OPEN FILE REPORT 1976-56
Reference (Production): SMITH, R. M., (1976)
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.
