South Fork Ophir Canyon Prospect

Occurrence in Tooele county in Utah, United States with commodities Lead, Silver, Zinc, Copper, Arsenic, Gold, Iron
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. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10012690
MRDS ID D008520
Record type Site
Current site name South Fork Ophir Canyon Prospect

Geographic coordinates

Geographic coordinates: -112.22441, 40.35327 (WGS84)
Elevation 2499
Relative position ABOUT 2,400 FT. N 5W OF PORPHYRY 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)

Federal lands

Bureau of Land Management(Bureau of Land Management UT)

Bureau of Land Management UT BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Utah Tooele

Public Land Survey System information

Meridian Township Range Section Fraction State
Salt Lake 005S 003W 30 SW OF NE OF SW Utah

Comments on the location information

  • INFO FROM LAND.ST :(1977)

Commodities

Commodity Importance
Lead Primary
Silver Primary
Zinc Critical Secondary
Copper Secondary
Arsenic Critical Secondary
Gold Secondary
Iron Tertiary

Materials information

Materials Type of material
Aurichalcite Ore
Cerargyrite Ore
Gold Ore
Limonite Ore
Malachite Ore
Plumbojarosite Ore
Realgar Ore
Calcite Gangue
Chlorite Gangue
Quartz Gangue
Sericite Gangue
Talc Gangue

Alteration

  • (Local) Dolomitization, Sericitization And Silicification

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Bird'S Eye Porphyry
    Rock description Bird'S Eye Porphyry
    Stratigraphic age (youngest) Mississippian
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    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) -112.22441, 40.35327

Economic information

Geologic structures

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

Ore body information

  • General form IRREGULAR
  • General form IRREGULAR

Controls for ore emplacement

  • Fissures

Comments on the geologic information

  • HOSTROCKS ARE HIGHLY DEFORMED AND ALTERED. SHALES ARE PULVERIZED, CARBONACEOUS, CALEAREOUS, SERIEITIC, KAOLIMITIC AND LIMONITIE. LIMESTONES ARE DARK GRAY, CHERTY, DOLOMITIC AND SILICIFIED. WALLROCKS ARE INPREGNATED WITH VEINS OF JASPEROID, QUARTZ AND CALCITE VEINS.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Mercur District

Land status

Ownership category Private

Workings at the site

  • Type of workings Surface
    Area 0.092HA
    Overall length 45.72M
    Overall width 21.34M

Comments on the workings information

  • SURFACE WORKINGS (DOZER CUTS)

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.

General comments

Subject category Comment text
Deposit MINERALIZATION IS CONTROLLED FISSURES TRENDING IN N-S, AND N40E DIRECTIONS. THE ORE IS YELLOISH OR GREYISH, SOFT AND PULVERIZED
Deposit THE DEPOSIT IS CONFINED TO THE LOWER PART OF THE GREAT BLUE LIMESTONES, BELOW THE LONG TRAIL SHALE MEMBER. ; INFO.SRC : 3 FIELD OBSERV

Reporter information

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

Beyond USGS

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