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Carr Fork Mine

Past Producer in Tooele county in Utah, United States with commodities Copper, Lead, Zinc, Silver, Molybdenum, Gold, Manganese, Iron, Platinum, Palladium
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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. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Land status
  18. Ownership information
  19. Production statistics
  20. Reserves and resources
  21. Links to other databases
  22. Bibliographic references
  23. General comments
  24. Reporter information

Geologic information

Identification information

Deposit ID 10041786
MRDS ID M057559
Record type Deposit
Current site name Carr Fork Mine
Alternate or previous names Utah Apex Pre 1947, Apex Mine and Tunnel, Bingham Limestone Copper Deposit
Included sites Carr Fork Copper Deposit

Comments on the site identification

  • The Carr Fork Mine and related North Ore Shoot Extension: are two seperate records, SEE "North Ore Shoot Extension" DEPOSIT ID 10276611ALSO "Bingham Open Pit Mine" DEPOSIT ID 10069296 and "Bingham Canyon (Plant)" DEPOSIT ID 10129805
  • DATA MERGED from Carr Fork Copper Deposit Deposit ID 10300633

Geographic coordinates

Geographic coordinates: -112.19108, 40.53133 (WGS84)
Elevation 1987
Relative position ABOUT 9 KM EAST OF TOOELE

Site location context

Political divisions (FIPS codes)

Tooele(county)

Utah(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bingham Canyon(quadrangle 1:24,000 scale)

Tooele(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 003S 003W 28 SE4 OF SW4 OF NW4 Utah

Comments on the location information

  • 6,500 FT S35W OF MARKHAM PEAK IN PINE CANYON. LOCATION GIVEN IS FOR SHAFT SYMBOL SHOWN AT APPROPRIATE LOCATION ON TOPO MAP INFO FROM LAND.ST :(1977)

Commodities

Commodity Importance
Copper Primary
Lead Primary
Zinc Critical Primary
Silver Primary
Molybdenum Secondary
Gold Secondary
Manganese Critical Secondary
Iron Tertiary
Platinum Critical Tertiary
Palladium Critical Tertiary

Comments on the commodity information

  • HIGH-GRADE GOLD ZONE CHARACTERIZED BY ANOMALOUS AU, AS, SB, HG, SI, S, AND TL AND DEPLETED PD, CA, AND SE.

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Hematite Ore
Limonite Ore
Molybdenite Ore
Rhodochrosite Ore
Sphalerite Ore
Actinolite Gangue
Biotite Gangue
Clay Gangue
Diopside Gangue
Epidote Gangue
Garnet Gangue
Opal Gangue
Talc Gangue
Wollastonite Gangue

Alteration

  • (Local) Dolomitization, Diopsitization, Actinloitization, Biotitization, Silicification, Chloritization

Analytical data

Result SEE CAMERON AND GARMOE FOR ANALYTICAL DATA. PT=0.002-0.01 OZ/TON (69-340 PPB), PD=0.003-0.028 OZ/TON (100-960 PPB) IN MINERALIZED LIMESTONE

Mineral occurrence model information

Model code 59
USGS model code 18b
Deposit model name Skarn Cu
Mark3 model number 8

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Bingham Stock;Last Chance Stock;Quartz-Monzonite Porphyry
    Rock description Bingham Stock;Last Chance Stock;Quartz-Monzonite Porphyry
    Stratigraphic age (youngest) Pennsylvanian
    Stratigraphic age (youngest) Eocene
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Trachyte
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Commercial and Jordan Limestones within; Bingham Mine Formation above Butterfield Peaks Formation
    Rock description Butterfield Peaks Formation;Bingham Mine Formation
    Stratigraphic age (youngest) Carboniferous

Nearby scientific data

(1) -112.19108, 40.53133
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Faults, Folds, Fractures And Fissures

Ore body information

  • General form IRREGULAR, TABULAR, WEDGE
    Strike EW-NE
    Dip 0-20N
    Plunge direction NW
    Length 900M
    Width 1000M
    Depth to top 610M
    Depth to bottom 1830M

Controls for ore emplacement

  • Contact Zones; Fissures And Fractures

Comments on the geologic information

  • LIMESTONE GRADES FROM DARK GRAY TO BLACK THROUGH BANDED, GRAY, BLACK, AND WHITE TOWARD MORE INTENSELY SILICATED ZONES AT IGNEOUS CONTACTS. ORE MINERALS ARE INTIMATELY ASSOCIATED WITH QUARTZ VEINS IN ALTERED WALL ROCKS.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Large
Significant Yes
Discovery year 1873
Discoverer James W. Campbell

Mining district

District name Bingham District

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Anaconda Co.
    First year 1981

Production statistics

  • Year 1979
    Material ore
    Ore mined 49678mt
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary AU Gold Gold 6000g
    Primary AG Silver Silver 120000g
    Primary CU Copper Copper 175mt
  • Year 1980
    Material ore
    Ore mined 584074mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Gold Gold 113000g
    Primary Silver Silver 1862000g
    Primary Copper Copper 4923mt
  • Year 1981
    Material ore
    Ore mined 1276960mt
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Gold Gold 551000g
    Primary Silver Silver 6843000g
    Primary Copper Copper 13858mt

Comments on the production information

  • PRODUCTION THROUGH 1947 CONSISTED OF 11.972 MILLION TONS OF PB, ZN, AG, CU ORE AVERAGING 8% PB, 5% ZN, 4 OZ/TON AG, 2-2.5% CU. THESE PRODUCTION FIGURES ARE FROM OLD MINES

Reserves and resources

  • Type In-situ
    Estimate year 1979
    Total resources 61000000mt ore
    Remarks Cameron and Garmoe, 1987, p. 1319.
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 1.89 wt-pct Copper Major 1979
    Silver Ag 9.673 g/mt Silver Major 1979
    Gold Au 0.342 g/mt Gold Minor 1979
    Molybdenum Mo 0.027 wt-pct Molybdenum Minor 1979

Comments on the reserve resource information

  • ORE (2% CU, 90% RECOVERY)

Comments on the workings information

  • 4 CIRCULAR, CONCRETE-LINED SHAFTS OPERATED FOR PRODUCTION, SERVICE, EXHAUST AIR, AND FRESH AIR. THE FRESH AIR SHAFT IS COLLARED NEAR END OF THE 1,830 M PINE CANYON TUNNEL. SERVICE SHAFT IS COMPLETE TO 1,172 M. MINE DEVELOPMENT IN PROGRESS ON MAIN LEVELS WAS AT ELEVATIONS OF 970 AND 1,200 M ABVOVE SEA LEVEL. THE 1,200 LEVEL IS 4.5 M HIGH BY 3.7 M WIDE AND PROVIDES GENERAL ACCESS TO MINE WORKINGS. MINE FLOODED BY 1987.

Comments on development

  • VCR (VERTICAL CRATER RETREAT) MINING IS USED TO REDUCE BLAST DAMAGE THROUGHOUT THE MINE AND, AT THE SAME TIME, PRODUCE BETTER FRAGMENTATION.

Reference information

Bibliographic references

General comments

Subject category Comment text
General The Carr Fork mine was developed on section of the Carr Fork/North Ore Shoot skarn deposits which are part of the Bingham Canyon porphyry system in the Central Oquirrh Mountains, near Sat Lake City, northern Utah, USA. They occur in the immediate contact zone of the Bingham Stock, adjacent to the Bingham Canyon open pit.
Deposit SEDIMENTARY SECTION EXPOSED IN CARR FORK AREA IS ABOUT 2,150 FT THICK; IT INCLUDES 2 THICK LIMESTONES IN LOWER PART OF SECTION SEPARATED AND OVERLAIN BY CALCAREOUS QUARTZITE AND THIN SILTY LIMESTONE. ALTERATION IN QUARTZITE AND SILTY LIMESTONE IS CHARACTERIZED BY REPLACEMENT OF CALCITE BY DIOPSIDE, WHICH WAS LATER ALTERED TO QUARTZ-ACTINOLITE-CALCITE RESULTING IN ALTERATION ENVELOPES ALONG FRACTURES NEAR BINGHAM STOCK AND ORBICULAR TEXTURES FARTHER AWAY. BIOTITE REPLACED ACTINOLITE IN ENVELOPES NEAR STOCK. THICKER LIMESTONES SHOW A PROGRESSIVE ALTERATION TO CALCITE-WOLLASTONITE, ANDRADITE-CALCITE-WOLLASTONITE, ANDRADITE-WOLLASTONITE, AND ANDRADITE-QUARTZ. CHALCOPYRITE DEPOSITION WAS GREATEST IN ANDRADITE-BEARING ROCKS. DIOPSIDE-SALITE MAY HAVE FORMNED WITH ANDRADITE BUT ITS DISTRIBUTION AND PARAGENESIS ARE OBSCURED BY ITS SUSCEPTIBILITY TO CLAY ALTERATION AND LEACHING. EXPOSED SEMINENTARY ROCKS LIE ON LIMBS OF AN OVERTURNED ANTICLINE, THE AXIAL PLANE OF WHICH STRIKES NEARLY
Deposit EAST AND DIPS 50S. THE TRACE OF THE AXIAL PLANE IS LOCATED IMMEDIATELY NORTH OF APEX SHAFT AND JUST NORTH OF CARR FORK MINE EXHAUSE SHAFT. ROCKS ON SOUTH LIMB OF ANTICLINE DIP 20-30N AND STRIKE N60-80W; THOSE ON NORTH LIMB DIP 70-80N AND STRIKE N70-80W. ONLY A MINOR AMOUNT OF NORMAL FAULTING WITH APPARENT MAXIMUM OFFSET OF 20 FT IS OBSERVIED AT SURFACE. BEST CU VALUES ARE IN MARBLIZED-SILICATED ZONES AND PB-ZN-CU ORES ARE IN TRANSITION FROM WHITE TO BLACK LIMESTONE. THE MORE INTENSELY SILICATED LIMESTONE HAS BECOME A MASSIVE OR GRANULAR GARNETITE CONTAINING SPECULAR HEMATITE, MAGNETITE, CHALCOPYRITE, PYRITE. CONSEQUENTLY A TELESCOPING ORDER OF MINERALIZATION MAY FOLLOW A PATTERN SUCH AS CU-PB-ZN, PB-CU-ZN, PB-ZN-CU, ZN-PB-MN. AG AND AU ARE PRESENT IN VARIABLE AMOUNTS THROUGHOUT BUT INCREAST IN AN OUTER ENVIRONMENT. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV
Deposit RECORD W002689 HAS BEEN DELETED.
Deposit DEPOSIT LIES ON WEST FLANK OF OQUIRRH MOUNTAINS ALONG OCCIDENTAL FAULT. ORE IS A SKARN FORMED IN TWO LIMESTONE UNITS ENCLOSED BY QUARTZITES. EVIDENCE SUGGESTS TWO GOLD MINERALIZING EPISODES. SOME GEOLOGISTS CLASSIFY THIS DEPOSIT AS A CU SKARN OR A GOLD-BEARING SKARN.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1981 Mohammad, Hasan Utah Geological and Mineral Survey
Updater 01-OCT-1974 Cox, Dennis P. U.S. Geological Survey
Updater 01-JUL-1992 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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

Operator history (post-MRDS)

MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:

  • Anaconda Co. — dissolved ~1977
    Acquired by Atlantic Richfield (ARCO) in 1977 and shut down most operations in the 1980s. Mineral assets were sold off piecemeal; some are now in Glencore via intermediate owners.

Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.

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