The Porphyry Knob Prospect #1 is a gold mine located in Tooele county, Utah at an elevation of 7,959 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: 7,959 Feet (2,426 Meters)
Commodity: Gold
Lat, Long: 40.33528, -112.22778
Map: View on Google Maps
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.
Porphyry Knob Prospect #1 MRDS details
Site Name
Primary: Porphyry Knob Prospect #1
Commodity
Primary: Gold
Secondary: Arsenic
Secondary: Silver
Secondary: Antimony
Secondary: Mercury
Tertiary: Iron
Location
State: Utah
County: Tooele
District: Mercur 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
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Deposit Type: Replacement
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: Fissures, Fractures, Folds
Alterations
Alteration Type: L
Alteration Text: Dolomitization, Sericitization And Silicification
Rocks
Name: Limestone
Role: Host
Age Type: Host Rock
Age Young: Mississippian
Analytical Data
Not available
Materials
Ore: Realgar
Ore: Orpiment
Ore: Stibnite
Ore: Cinnabar
Ore: Pyrite
Gangue: Calcite
Gangue: Sericite
Gangue: Quartz
Gangue: Chlorite
Comments
Comment (Workings): PITS AND TRENCHES
Comment (Location): INFO FROM LAND.ST :(1977)
Comment (Deposit): MINERALIZED ZONE IS LOCALIZED IN ALTERED WALLROCKS.
Comment (Geology): WALLROCKS ARE HIGHLY DEFORMED AND ALTERED. LIMESTONES ARE DARK GRAY TO BLACK, DOLOMITIZED, AND SILICIFIED. SHALES ARE GREENISH GRAY TO BLACK, PULVERIZED, SERICITIC, CALCAREOUS, CARBONACEOUS AND KAOLIMITIC. LIMONITIC STAINS ARE COMMON ON HOSTROCKS.
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 QUADRANGELS: U.S.G.S. PROF. PA.173,167P.
Reference (Deposit): BUTTLER,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.
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