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Monarch Mines

Past Producer in Tooele county in Utah, United States with commodities Silver, Lead, Gold
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10020037
MRDS ID DC12217
Record type Site
Current site name Monarch Mines

Geographic coordinates

Geographic coordinates: -112.2458, 40.3605 (WGS84)
Elevation 2560
Relative position ABOUT 900 FT N.84E. FROM LION HILL

Site location context

Political divisions (FIPS codes)

Tooele(county)

Utah(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mercur(quadrangle 1:24,000 scale)

Rush Valley(quadrangle 1:100,000 scale)

Tooele(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Rush-Tooele Valleys(hydrologic unit)

Great Salt Lake(hydrologic accounting unit)

Great Salt Lake(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Utah Tooele

Public Land Survey System information

Meridian Township Range Section Fraction State
Salt Lake 005S 004W 25 SE OF NW OF NW Utah

Comments on the location information

  • INFO FROM LAND.ST :(1977)

Commodities

Commodity Importance
Silver Primary
Lead Primary
Gold Secondary

Materials information

Materials Type of material
Gold Ore
Plumbojarosite Ore
Barite Gangue
Calcite Gangue
Chlorite Gangue
Fluorite Gangue
Gypsum Gangue
Sericite Gangue
Talc Gangue

Alteration

  • (Local) Dolomitization And Silicification

Analytical data

Result AG 130 OZ/TON
Result AU $8/TON
Result PB 12 PERCENT

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Birds Eye Porphyry
    Rock description Birds Eye Porphyry
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Mississippian
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Great Blue Limestones;Long Trail Shale Member Of The Great Blue Limestone
    Rock description Great Blue Limestones;Long Trail Shale Mbr. Of The Great Blue Limestone

Nearby scientific data

(1) -112.2458, 40.3605
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Basin And Range
Type of structure Local
Structure description Fissures, Fractures And Golds

Ore body information

  • General form IRREGULAR
    Strike N
    Dip 10E
    Thickness 3.66M
    Length 22.86M
    Width 9.14M
  • General form IRREGULAR
    Dip 10E
  • General form IRREGULAR
    Dip 10E
  • General form IRREGULAR
    Dip 10E

Controls for ore emplacement

  • Fissures

Comments on the geologic information

  • HOSTROCKS ARE HIGHLY DEFORMED AND ALTERED. LIMESTONES ARE DARK GRAY TO BLACK, DOLOMITIC AND SILICIFIED. SHALES AREGREENISH GRAY TO BLACK, PULVERIZED, CARBONACEOUS, KAOLIMITIC, SERICITIC AND SILICEOUS. EFFECTS OF LIMONITIZATION ARE COMMON ON HOSTROCKS. VEINS OF CALCITE AND QUARTZ HAVE IMPREGNATED THE WALLROCKS.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1916
Year of last production 1936

Mining district

District name Ophir District; Lion Hill Area

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner F And S Co., Inc.

Comments on the production information

  • PRODUCTION FIGURES ARE NOT AVAILABLE.

Workings at the site

  • Type of workings Underground
    Length 609.6M

Comments on the workings information

  • ADITS AND DRIFTS TOTALLING 2,000 FT.; WORKINGS ARE GENERALLY CAVED AND INACCESSIBLE;

Reference information

Bibliographic references

  • 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.

  • Deposit

    GILLULY, J., 1932, GEOLOGY AND ORE DEPOSITS OF THE STOCKTON AND FAIRFIELD QUADRANGLES: U.S.G.S. PROF. PA. 173, 167P.

  • Deposit

    BUTLER, B.S., ET. AL., 1920, THE ORE DEPOSITS OF UTAH: U.S.G.S. PROF. PA. 111, 672P.

  • Deposit

    SPURR, J.E., 1895, ECONOMIC GEOLOGY OF THE MERCUR MINING DISTRICT, UTAH: U.S.G.S. 16TH. ANN. REPT., PT. 2, 454P.

  • Production

    GILLULY, J., 1932, P. 140-141

General comments

Subject category Comment text
Deposit ORE ZONES ARE LOCALIZED IN FISSURES WITH QUARTZ FILLINGS, IN DEFORMED AND HIGHLY ALTERED WALLROCKS; ORE IS EXTREMELY OXIDIZED; ORE BODY DIPS DUE NE
Deposit MINERALIZED ZONE LIES JUST BELOW THE LONG TRAIL SHALE MEMBER, IN THE LOWER PART OF THE 'GREAT BLUE' LIMESTONES, ON THE EASTERN FLANK OF THE OPHIR ANTICLINE. THE ORE DEPOSITS OCCURS IN OY CLOSELY ASSOCIATED WITH JASPEROID. THE JASPEROID LIES IMMEDIATELY BENEATH A SILL OF 'BIRD EYE PORPHYRY: THE ORE FOLLOWED VERY IRREGULAR, GENERALLY NORTH-EASTERLY FISSURES IN THE JASPEROID. THE ORE IS PRACTICALLY ALL OXIDIZED. ; INFO.SRC : 1 PUB LIT; 3 FIELD OBSERV

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1981 Mohammad, Hasan Utah Geological and Mineral Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

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