Third Term Mine

The Third Term Mine is a lead and silver mine located in Tooele county, Utah at an elevation of 7,979 feet.

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: Third Term Mine  

State:  Utah

County:  Tooele

Elevation: 7,979 Feet (2,432 Meters)

Primary Mineral: Lead, Silver

Lat, Long: 40.50306, -112.59639

Map: View on Google Maps


Satelite image of the Third Term Mine

Third Term Mine MRDS details

Site Name

Primary: Third Term Mine


Commodity

Primary: Lead
Primary: Silver
Secondary: Copper


Location

State: Utah
County: Tooele
District: Third Term


Land Status

Land ownership: Private


Holdings

Not available


Workings

Not available


Ownership

Owner Name: Thomas J. Wells

Owner Name: Ray Mining And Dev. Co.


Production

Year: 1925
Description: Ap_Grade: ^7 To 8 Percent Pb


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Replacement Vein
Operation Type: Unknown
Year First Production: 1870
Discovery Year: 1870
Discovery Method: Ore-Mineral In Place
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, Stansbury Mountains


Mineral Deposit Model

Not available


Orebody

Form: LENS


Structure

Type: R
Description: Deseret Anticline


Alterations

Alteration Type: L
Alteration Text: Oxidation


Rocks

Name: Limestone
Role: Host
Age Type: Host Rock
Age Young: Mississippian


Analytical Data

Not available


Materials

Ore: Copper
Gangue: Jarosite
Gangue: Limonite
Gangue: Hematite


Comments

Comment (Workings): A 165 FT. ADIT INTERSECTS A 46 DEGREE INCLINED STOPE BEGUN FROM A GLORY HOLE 78 FT. ABOVE THE ADIT PORTAL. OTHER WORKINGS INCLUDE A CAVED-IN ADIT, 900 FT. LONG, DRIVEN FROM THE SOUTHWEST TO INTERSECT THE MINERALIZED ZONE, A 65 FT. CAVED-IN SHAFT ON A WEAKLY COPPER-MINERALIZED ZONE WITH AN INTERSECTING, 170 FT. ADIT, AND ASSOCIATED SHAFT ADITS AND PITS

Comment (Deposit): MOST OF THE ORE WAS PRODUCED FROM THE GLORY HOLE THAT BECAME THE 100 FT., 46 DEGREE DECLINE. THE 900 FT. DRIFT DID NOT EXPOSE ANY ORE, BUT DID INTERSECT SOME FISSURES CARRYING IRON OXIDES. ; INFO.SRC : 3 FIELD OBSERV; 2 UNPUB REPT; 1 PUB LIT

Comment (Development): THE U.S. BUREAU OF MINES FIELD WORK (1980) WAS PART OF A MINERAL RESOURCES EVALUATION OF A RARE II AREA (04-757) IN THE STANSBURY MTNS. SECTION (GRANTSVILLE DIV.) OF THE WASATCH NATIONAL FOREST. ; ECON.COM: APPROX. $100,000 OF ORE SOLD DURING THE HISTORY OF THE MINE.

Comment (Geology): EXCEPT FOR THE 900 FT. TUNNEL, THE WORKING ARE NEARLY ON THE GARDNER DOLOMITE-PINE CANYON LIMESTONE CONTACT.


References

Reference (Deposit): 1980 RECON USBM-DENVER, COLO.

Reference (Deposit): 1980 RECON UTAH GEOL. AND MINERAL SURVEY

Reference (Deposit): MESSENGER, H.M. III, 1980, ON-SITE INVESTIGATION,: UTAH GEOL. AND MINERAL SURVEY.

Reference (Deposit): RIGBY, J.K., 1958, GEOLOGY OF THE STANSBURY MOUNTAINS: GUIDEBOOK TO THE GEOLOGY OF UTAH NO. 13, UTAH GEOL. SOCIETY, P. 127.

Reference (Deposit): U.S. BUREAU OF MINES, 1950, MINERAL PROPERTY FILE NO. 37.49, DENVER, COLO., UNPUBLISHED OPEN-FILE REPORT

Reference (Production): U.S.G.S. MINERAL RESOURCES 1917, 1925, 1940; U.S.B.M. (1950)

Reference (Deposit): ALMQUIST, CARL, 1980, ON-SITE INVESTIGATION, U.S. BUREAU OF MINES, DENVER, COLORADO.

Reference (Deposit): 1950 RECON USBM-MINERAL PROPERTY FILE 37.49