Tuscarora Deposit

The Tuscarora Deposit is a gold 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: Tuscarora Deposit  

State:  Nevada

County:  Elko

Elevation:

Commodity: Gold

Lat, Long: 41.3116, -116.22300

Map: View on Google Maps

Satelite View

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Satelite image of the Tuscarora Deposit

Tuscarora Deposit MRDS details

Site Name

Primary: Tuscarora Deposit
Secondary: Dexter Mine


Commodity

Primary: Gold
Secondary: Silver
Tertiary: Titanium


Location

State: Nevada
County: Elko
District: Tuscarora


Land Status

Land ownership: BLM Administrative Area
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.
Administrative Organization: Elko BLM Administrative District


Holdings

Not available


Workings

Not available


Ownership

Owner Name: Tuscarora Gold Mines, Inc.

Owner Name: Granges Exploration Ltd.
Home Office: Canada
Info Year: 1988

Owner Name: Horizon Gold Shares, Inc.
Home Office: Colorado
Info Year: 1988

Owner Name: Homestake Canada Ltd
Home Office: Canada
Info Year: 1996
Years: 1991 -

Owner Name: Carlin Resources Corp.
Percent: 40.00
Home Office: Canada
Info Year: 1996

Owner Name: Fischer-Watt Gold Co., Inc.
Percent: 15.00
Home Office: Idaho
Info Year: 1996

Owner Name: Silver Standard Resources Inc. (3%Nsr)
Home Office: Canada
Info Year: 1996


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: stockwork
Plant Type: Leach
Plant Subtype: Precipitation
Operation Type: Surface
Mining Method: Open Pit
Milling Method: Leach-Precipitation
Year First Production: 1875
Discovery Year: 1875
Years of Production:
Organization:
Significant: Y
Deposit Size: L


Physiography

Not available


Mineral Deposit Model

Model Name: Epithermal vein, Comstock


Orebody

Form: STOCKWORK


Structure

Type: L
Description: N.E. STRIKING NORMAL FAULTS, DIPPING NW


Alterations

Alteration Type: L
Alteration Text: POTASSIC ALTERATION OF BEDDED ANDESITE


Rocks

Name: Andesite
Role: Host
Description: adularized
Age Type: Host Rock
Age Young: Tertiary


Analytical Data

Not available


Materials

Ore: Gold
Ore: Adularia
Ore: Dickite
Ore: Chlorite
Gangue: Quartz


Comments

Comment (Development): LARGE, LOW-GRADE GOLD DEPOSIT, DISCOVERED AFTER THE SILVER MINES HAD BEEN DEVELOPED. IT WAS WORKED UNTIL 1898, WHEN THE INFLUX OF WATER BECAME TOO GREAT

Comment (Geology): GEOL.COM: THE DEPOSITS ARE STOCKWORKS ALONG FRACTURES THAT TREND EASTWARD AND DIP NORTHWARD IN ADULARIZED BEADED ANDESITE. THE FRACTURE ZONE IS 1,400 FT LONG, 200 FT. WIDE AND WAS MINED TO A 300' DEPTH. ZONE CONTAINS MANY CLOSELY SPACED VEINLETS OF QUARTZ AND ADULARIA. FREE GOLD IS DEPOSITED IN DRUSY CAVITIES IN THE VEINLETS AND ALSO REPLACING BEDDED ANDESITE. SILVER CONTENT SO DISPERSED THAT VERY LITTLE SECONDARY ENRICHMENT OCCURRED

Comment (Identification): This record incorporates all material from record No. W700395 which is a very incomplete record and should be deleted from the database.

Comment (Deposit): DEPOSITS ARE STOCKWORKS ALONG FRACTURES THAT TREND EASTWARD AND DIP NORTH IN ADULARIZED ANDESITE. ZONE CONTAINS MANY CLOSELY-SPACED VEINLETS OF QUARTZ AND ADULARIA. FREE GOLD IS DEPOSITED IN DRUSY CAVITIES IN THE VEINLETS.

Comment (Commodity): Gangue Materials: GANGUE: QUARTZ, ADULARIA, DICKITE, CHLORITE, TITANIUM MINERALS

Comment (Commodity): Ore Materials: NATIVE GOLD

Comment (Production): http://www.terracogold.com/files/Tuscarora_43-101_FinalV2_screen.pdf Total production in the district was seven million ounces of silver and 500,000 ounces of gold up to 1995, according to the report by Cruson (1995). Of the reported production, 25,000 ounces of the gold and 200,000 ounces of silver were mined from the Dexter Mine between 1989 and 1990. Placer deposits are reported to have contributed 300,000 ounces of the total gold, but the number ?is not well documented.?


References

Reference (Deposit): Cruson, Michael G., (1995), Progress Report on the Tuscarora District Elko County, Nevada; Cruson & Pansze, Geologists.

Reference (Ownership): AMERICAN MINES HANDBOOKS, 1987-1996.

Reference (Deposit): NEV. DIV. MINE INSPECTION, 1983, DIRECTORY OF NEVADA MINE OPERATIONS ACTIVE DURING CALENDAR YEAR 1982.

Reference (Ownership): RANDOL MINING DIRECTORY, 1996/97, U.S. MINES AND MINING COMPANIES, P277.

Reference (Ownership): RANDOL MINING DIRECTORY, 1994/95, U.S. MINES AND MINING COMPANIES, P357.

Reference (Deposit): NEV. DIV. MINE INSPECTION, 1991, DIRECTORY OF NEVADA MINE OPERATIONS ACTIVE DURING CALENDAR YEAR 1990, P. 23.

Reference (Deposit): SMITH R. M. (1976-56) MINERAL RES. OF ELKO CO. NEV., USGS OPEN-FILE REPORT

Reference (Deposit): NOLAN, T. B. (1936) TUSCARORA MINING DISTRICT, ELKO CO. NEV., NEV. BUR. OF MINES BULL 25

Reference (Deposit): EMMONS W. H. (1910) RECONNAISSANCE OF ELKO LANDER AND EUREKA CO'S NEV., USGS BULL 408

Reference (Deposit): NBMG, 1994, MI-1993

Reference (Deposit): Long, K.R., DeYoung, J.H., Jr., and Ludington, S.D., 1998, Significant deposits of gold, silver, copper, lead, and zinc in the United States: U.S. Geological Survey Open-File Report 90-206A, 33 p.; 98-206B. one 3.5 inch diskette.


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.