The Zella Mine is a gold and silver mine located in Tooele county, Utah at an elevation of 8,320 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
Elevation: 8,320 Feet (2,536 Meters)
Commodity: Gold, Silver
Lat, Long: 40.36167, -112.24944
Map: View on Google Maps
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Zella Mine MRDS details
Site Name
Primary: Zella Mine
Commodity
Primary: Gold
Primary: Silver
Secondary: Lead
Location
State: Utah
County: Tooele
District: Ophir District
Land Status
Land ownership: Private
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
Type: Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
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: Uinta Extension
Mineral Deposit Model
Not available
Orebody
Form: IRREGULAR
Structure
Type: R
Description: Basin And Range
Type: L
Description: Faults And Fissures
Alterations
Alteration Type: L
Alteration Text: Silicification
Rocks
Name: Lamprophyre
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene
Name: Lamprophyre
Role: Associated
Age Type: Host Rock
Age Young: Mississippian
Name: Lamprophyre
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Not available
Materials
Ore: Cerargyrite
Ore: Gold
Ore: Plumbojarosite
Gangue: Sericite
Gangue: Barite
Gangue: Calcite
Gangue: Quartz
Comments
Comment (Production): NO PRODUCTION FIGURES AVAILABLE.
Comment (Deposit): CLARK BLUISH GREY LIMESTONE WITH SPARSE CALCITE VEINS AND CHERT LENSES ALONG BEDDING PLANES, THIN BEDDED TO MASSIVE
Comment (Workings): 70 FT HIGHWALL ON QUARRY
Comment (Deposit): IRON-STAINING AND CALCITE ALONG JOINTS WHICH FORM HIGHWALLS ; INFO.SRC : 1 PUB LIT; 3 FIELD OBSERV
Comment (Location): INFO FROM LAND.ST :(1977)
Comment (Production): THE TOTAL PRODUCTION OF THE FELLA GROUP, WHICH COMPRISES FELLA, MOUNTAIN TIGER, SILVER CHIEF AND ROCKWELL, WAS ESTIMATED AS $750,000; PRODUCTION FIGURES ARE NOT AVAILABLE.
Comment (Deposit): THE ORE OUTCROPPED IN TWO PLACES. THREE LARGE BODIES AND SEVERAL SMALLER ONES WERE FOUND ABOUT 20 FEET BELOW THE SURFACE. THE ORE IS A SOFT YELLOW SILICEOUS CHLORIDE, AND IS HIGHLY OXIDIZED.
Comment (Workings): SEVERAL SHAFTS AND TUNNELS, IN ALL OVER 6,500 FT. THE ACTUAL WORKING DEVELOPMENT ON THE STRATUM CONTAINING ORE DOES NOT, HOWEVER, EXTEND OVER 125 FT. VERTICALLY AND 800 FEET HORIZONTALLY. THE WORKINGS ARE NOW CAVED AND INACCESSIBLE.
Comment (Geology): MINERALIZATION IS ASSOCIATED WITH JASPEROID.
Comment (Deposit): THE DEPOSIT IS CONFINED TO THE LOWER PART OF THE 'GREAT BLUE' LIMESTONE, WHERE IT DIPS GENTLY WESTWARD ON THE WESTERN FLANK OF OPHIR ANTICLINE. A FAULT TRENDING N45W WAS OBSERED AT THE MINE SITE, AND CONSIDERABLE WORK HAD BEEN DONE ALONG THE CONTACT OF A LAMPROPHYRE DIKE TRENDING DUE NORTH. ; INFO.SRC : 1 PUB LIT
References
Reference (Deposit): BISSELL, H.J., ET. AL., 1959, GUIDEBOOK TO THE GEOLOGY OF UTAH, NO. 14, UT. GEOL. SOC.: U.G.M.S. BULL. 14, 262P.
Reference (Deposit): GILLULY, J., 1932, GEOLOGY AND ORE DEPOSITS OF THE STOCKTON AND FAIRFIELD QUADRANGLES: U.S.G.S. PROF. PA. 173, 167P.
Reference (Deposit): BUTLER, B.S., ET. AL., 1920, THE ORE DEPOSITS OF UTAH: U.S.G.S. PROF. PA. 111, 672P.
Reference (Deposit): SPURR, J.E., 1895, ECONOMIC GEOLOGY OF THE MERCUR MINING DISTRICT, UTAH: U.S.G.S. 16TH. ANN. REPT., PT. 2, 454P.
Reference (Production): GILLULY, J., 1932, P. 141
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