Porphyry Knob Prospect #3

The Porphyry Knob Prospect #3 is a gold mine located in Tooele county, Utah at an elevation of 7,759 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: Porphyry Knob Prospect #3  

State:  Utah

County:  Tooele

Elevation: 7,759 Feet (2,365 Meters)

Primary Mineral: Gold

Lat, Long: 40.33806, -112.22250

Map: View on Google Maps


Satelite image of the Porphyry Knob Prospect #3

Porphyry Knob Prospect #3 MRDS details

Site Name

Primary: Porphyry Knob Prospect #3


Commodity

Primary: Gold
Secondary: Mercury
Secondary: Silver
Secondary: Arsenic
Secondary: Antimony
Tertiary: Iron


Location

State: Utah
County: Tooele
District: Mercur District


Land Status

Land ownership: Private


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 And Fractures


Alterations

Alteration Type: L
Alteration Text: Dolomitization And Silicification


Rocks

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Mississippian


Analytical Data

Not available


Materials

Ore: Realgar
Ore: Cerargyrite
Ore: Orpiment
Ore: Pyrite
Ore: Cinnabar
Gangue: Chlorite
Gangue: Calcite
Gangue: Quartz
Gangue: Sericite


Comments

Comment (Location): INFO FROM LAND.ST :(1977)

Comment (Deposit): MINERALIZED ZONE IS LOCALIZED IN ALTERED WALLROCKS.

Comment (Workings): ONE PIT OF 120 X 50 X 20 FT. SIZE; ONE TRENCH OF 100 X 30 X 15 FT. SIZE.

Comment (Geology): HOSTROCKS ARE DEFORMED AND ALTERED. LIMESTONES ARE DARK GRAY, DOLOMITIZED, AND SILICIFIED. SHALES ARE GREENISH GRAY, PULVERIZED, SERICITIC, CARBONACEOUS, CALCAREOUS, SILICEOUS, AND KAOLIMINTIC.


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.