Goldfield Mine

Plant in Esmeralda county in Nevada, United States with commodities Gold, Silver

Geologic information

Identification information

Deposit ID 10173919
MRDS ID M242277
MAS/MILS ID 0320090415
Record type Site
Current site name Goldfield Mine
Alternate or previous names Coulmbia Mtn. West Tunnel, Goldfield, Goldfield Consolidated Main Vein, Goldfield Project, Check Out These Properties:, Goldfield Mill 0320099018, Goldfield Vector 0320090727, Goldfield Geochen 0320090744, Columbia 0320090273, Columbia Mt. Alunite 0320090030, Columbia Mtn. East Tunnel
Related records 10104122

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -117.22061, 37.72495 (WGS84)
Elevation 1720
Location accuracy 1000(meters)
(click for info)

Geographic areas

Country State County
United States Nevada Esmeralda

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 002 S 042 E 36 Nevada

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Materials information

Materials Type of material
Bismuthinite Unknown
Calaverite Unknown
Chalcopyrite Unknown
Famatinite Unknown
Galena Unknown
Gold Unknown
Gypsum Unknown
Halloysite Unknown
Hessite Unknown
Jasper Unknown
Limonite Unknown
Petzite Unknown
Pyrite Unknown
Quartz Unknown
Sphalerite Unknown
Sylvanite Unknown
Tennantite Unknown
Tetrahedrite Unknown

Nearby scientific data

Ore Body (1) -117.22061, 37.72495

Ore body information

  • Thickness 30M
    Width 45M
    Length 460M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 STOCKWORK
    Shape of Orebody #1 PIPELIKE
    Type of Orebody #2 REPLACEMENT
    Shape of Orebody #2 LENTICULAR
    Shape of Orebody #3 TABULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Secondary Ore Control FRACTURING
    Degree of Wallrock Alter. INTENSE
    Type of Wallrock Alter. #1 BLEACHING
    Type of Wallrock Alter. #2 ADV ARGILLIC
    Type of Wallrock Alter. #3 SILICIFICATION
    Date of Last Modification 850903
  • Area 100HA
    Field Value
    Total Surface Area (HA) 100
    Date of Last Modification 910418

Comments on the geologic information

  • GENERAL SIZE OF ORE BODY IS LARGE. THE PROJECT IS PRIMARILY LOCATED IN THE MILLTOWN ANDESITE PIT AREA GEOLOGY UNAVAILABLE, DATA DESCRIBES AREA OF DIST. AND THE OVERLYING DACITE, WHICH ARE MORE OR LESS CONCENTRI- CALLY SURROUNDED BY ASHFLOW TUFFS AND LACUSTRINE TUFFACEOUS BEDS. BOTH THE MILLTOWN AND OVERLYING DACITE ARE HIGHLY BLEACHED AND ALTERED. THE BLEACHED ROCKS HAVE BEEN ARGIL- LIZED, ALUNITIZED, AND SILICIFIED, AND BOTH ARE HOST FOR ORE DEPOSITS. THE ORE DEPOSITS ARE CLOSELY ALLIED TO FISSURE VEINS. STRUCTURALLY THE DEPOSITS ARE IRREGULAR MASSES OF ALTERED AND MINERALIZED ROCK TRAVERSED BY IRREGULAR INTER- SECTING FRACTURES, WITH THE FRACTURES PASSING INTO PLACES OF THOROUGH BECCIATION. TYPICALLY, THE ORE MASSES ARE CALLED LEDGES. WITHIN THE ZONE OF OXIDATION THE LEDGES ARE SILICIFIED INTO FRACTURED AND POROUS JASPERIOD. BELOW THIS ZONE, THE LEDGES BECOME LESS SILILEOUS AND LESS POROUS. THE MINERALIZED LEDGES RANGE FROM A FEW FEET TO HUNDREDS OF FEET IN LENGTH. THE ORE BODIES WITHIN THE LEDGES VARY IN SHAPE FROM PIPES TO EQUIDIMENSIONAL BODIES. THE DIPS VARY BUT ARE GENERALLY GREATER THAN 49 DEGREES TO THE EAST AND APPEAR TO ALIGN THEMSELVES DOWNDIP. THE OVERALL DIMENSIONS OF THE GOLD -FIELD ORE BODY IS ESTIMATED TO BE 30 METERS DEEP, 460 METERS IN LENGTH, AND NEARLY 45 METERS WIDE.

Economic information

Economic information about the deposit and operations

Operation type Surface
Development status Plant
Commodity type Metallic
Deposit size Medium
Significant Yes
Discovery year 1902
Mining method Open Pit
Year of first production 1984
Plant type Leach
Plant subcategory Ion Exchange-Electrowin
Milling method Heap Leach-Merrill-Crowe

Mining district

District name Goldfield District

Mineral rights holdings

Type of mineral rights Patented
Type of mineral rights Located Claim
Type of mineral rights Minerals Only

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner American Resources Corp. (Afil Of Apm, Ltd.)
    Interest 78
    Home office California
    Year 1996
    First year 1994
  • Type Owner
    Owner American Pacific Minerals, Ltd. (Red Rock Mining Corp.)
    Interest 22
    Home office California
    Year 1996
    First year 1994
  • Type Owner
    Owner Davis Goldfield Mining Co.(Recieves 10% Net Royalties)
    Home office California
    Year 1983
  • Type Owner
    Owner Southern Pacific Land Co., (Lessee)
    Interest 50
    Home office San Francisco, CA
    Year 1983
  • Type Owner
    Owner Noranda Exploration, Inc., Toronto, On, Canada(Lessee)
    Interest 25
    Home office Canada
    Year 1983
  • Type Unknown
    Owner Pacific Gold And Uranium Inc., Los Angeles, Ca (Lessee)
    Interest 25
    Home office California
    Year 1983
  • Type Operator
    Owner Blackhawk Mines Corp.
    Year 1984
  • Type Owner
    Owner Crown Resources Corp.
    Interest 50
    Home office Colorado
    Year 1990
  • Type Owner
    Owner Sutton Resources Ltd.
    Interest 50
    Year 1990

Comments on the ownership information

  • NEW OWNERS: SEE "O" BIB REF.

Production statistics

  • Year 1995
    Description Gold Production 9519 T Oz/Yr Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 296,074g

Comments on the production information

  • MINE FACILITY IS BEING SHUT DOWN. IN 1995, THE MINE IS ON STAND-BY, BUT PRODUCTION FROM EXISTING HEAPS CONTINUES.

Reserves and resources

  • Type In-situ
    Estimate year 1984
    Demonstrated 1,949,999mt ore
    Measured 1,949,999mt ore
    Total resources 1,949,999mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 2.3999 g/mt Gold Major 1984
  • Type In-situ
    Estimate year 1994
    Total resources 9,200,000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 2.2 g/mt Gold Major 1994
  • Type In-situ
    Estimate year 1994
    Demonstrated 3,150,000mt ore
    Total resources 3,150,000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 2.4 g/mt Gold Major 1994
  • Type In-situ
    Estimate year 1995
    Demonstrated 10,704,780mt ore
    Total resources 10,704,780mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.53 g/mt Gold Major 1995
  • Type In-situ
    Estimate year 1996
    Demonstrated 291,826mt ore
    Total resources 291,826mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 2.64 g/mt Gold Major 1996

Comments on the reserve resource information

  • IN-SITU GEOLOGIC RESERVES ARE STATED TO BE 1.587,000 MT AT A GRADE OF 2.47 GM AU/MT. ASSUMING A 20 PERCENT DILUTION AT NEAR ZERO DILUTION GRADE AND TOTAL RESOURCE RECOVERY, THE OPEN PIT MINEABLE RECOVERABLE RESOURCE IS 1.904,000 MT AT A GRADE OF 2.06 GM GOLD/MT BASED UPON THE HISTORIC 3:1 GOLD: SILVER RATIO FOR THE DISTRICT, SILVER RECOVERABLE RESOURCE GRADES CAN BE EXPECTED TO BE ABOUT 0.69 GM SILVER/MT. IN ADDITIOON TO THE ABOVE UMNIMED RESOURCE, APPROXIMATELY 279,000 MT OF COMMERCIALLY EXPLOITABLE OLD DUMP MATERIAL EXISTS ON THE PROPERTY. THIS MATERIAL IS SAID TO HAVE A GRADE SIMILAR TO THE RECOVERABLE RESOURCE.

Workings at the site

  • Type of workings Surface
    Area 100HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Percent Waste Rock 99.9
    Primary Material Cover M-HARD ROCKS
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 3
    Capacity 1088
    Capacity Units MT ORE/DAY
    Unit Production Cost 5.21
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 1
    Year of Information 1983

Comments on other economic factors

  • MILL: NEAR MINE; UNDER DEVELOPMENT; AGGLOMERATED CYANIDE HEAP LEACH, ZN PPT. OR CARBON ADSORPTION; 1100 MT/D ORE; SEE FILE GOLDFIELD MILL 0320099018 FOR MILL DETAILS.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
U.S. Bureau of Mines Minerals Availability System MAS 0320090415

Bibliographic references

  • Ownership

    AMERICAN MINES HANDBOOK, 1996, P23.

  • Production

    AMERICAN RESOURCE CORP. INC, 1995 ANNUAL REPORT, P.15.

  • Reserve-Resource

    162. ENGINEERING AND MINING JOURNAL. EXPLORATION

  • Reserve-Resource

    ROUNDUP. HIGH GOLD PRICES SPUR FRANTIC EXPLORATION, THE

  • Reserve-Resource

    NEVADA DISCOVERIES. V. 181, NO. 10, 1980, P. 31.

  • Reserve-Resource

    502. NEVADA MINING ASSOCIATION (RENO). BLACKHAWK AND

  • Reserve-Resource

    SOUTHERN PACIFIC JOINT VENTURE GOLDFIELD PROJECT. NV MIN.

  • Reserve-Resource

    ASSOC. BULL., V. 8, NO. 2, 1984, P. 13.

  • Reserve-Resource

    MINING JOURNAL, LONDON, APRIL 29, 1994, P310, "GOLDFIELD

  • Reserve-Resource

    OUTPUT ON SCHEDULE".

  • Reserve-Resource

    RANDOL, 1994/95, P326; 1996/97, P248, MINING DIRECTORY,

  • Reserve-Resource

    U.S. MINES & MINING COMPANIES.

  • Reserve-Resource

    RANDOL MINING DIRECTORY, 1996/97, U.S. MINES AND MINING

  • Reserve-Resource

    COMPANIES, P248.

  • Deposit

    7. ALBERS, J. P., AND F. J. KLEINHAMPL. SPATIAL

  • Deposit

    RELATION OF MINERAL DEPOSITS TO TERTIARY VOLCANIC CENTERS

  • Deposit

    IN NEVADA. U.S. GEOL. SURV. PROF. PAPER 700-C, 1970,

  • Deposit

    PP. C1-C10.

  • Deposit

    8. ALBERS, J. P., AND J. H. STEWART. GEOLOGY AND

  • Deposit

    MINERAL DEPOSITS

  • Deposit

    OF ESMERALDA COUNTY, NEVADA. NV BUREAU OF MINES AND GEOL. BULL.

  • Deposit

    78, 1972, 80 PP.

  • Deposit

    19. ASHLEY, R. P. PREMINERALIZATION STRUCTURAL HISTORY

  • Deposit

    OF THE GOLDFIELD MINING DISTRICT, NEVADA. ABSTR., ECON.

  • Deposit

    GEOL. AND BULL. SOC. ECON. GEOL., V. 67, 1972, P.1002.

  • Deposit

    20. ASHLEY, R. P. GOLDFIELD MINING DISTRICT. CH. IN

  • Deposit

    GUIDEBOOK TO THE GEOLOGY OF FOUR TERTIARY VOLCANIC CENTERS

  • Deposit

    IN CENTRAL NEVADA. NV BUREAU OF MINES AND GEOL. REP. 19, 1974,

  • Deposit

    PP. 49-66.

  • Deposit

    21. ASHLEY, R. P. PRELIMINARY GEOLOGIC MAP OF THE

  • Deposit

    GOLDFIELD MINING DISTRICT, NEVADA. U.S. GEOL. SURV. MISC.

  • Deposit

    FIELD STUDIES MAP MF-681, 1975, SCALE 1:24,000

  • Deposit

    22. ASHLEY, R. P. RELATION BETWEEN VOLCANISM AND ORE

  • Deposit

    DEPOSITION AT GOLDFIELD, NEVADA. PAPER IN PAPERS ON

  • Deposit

    MINERAL DEPOSITS OF WESTERN NORTH AMERICA. NV BUREAU OF MINES

  • Deposit

    AND GEOL. REP. 33, 1979, PP. 77-86.

  • Deposit

    23. ASHLEY, R. P., AND W. J. KEITH. DISTRIBUTION OF GOLD

  • Deposit

    AND OTHER METALS IN SILICIFIED ROCKS OF THE GOLDFIELD

  • Deposit

    MINING DISTRICT, NEVADA. U.S. GEOLOGICAL SURVEY PROF.

  • Deposit

    PAPER 843-B, 1976, 17 PP.

  • Deposit

    24. ASHLEY, R. P., AND M. L. SILBERMAN. DIRECT DATING OF

  • Deposit

    MINERALIZATION AT GOLDFIELD, NEVADA, BY POTASSIUM-ARGON AND

  • Deposit

    FISSION- TRACK METHODS. ECON. GEOL. AND BULL. SOC. ECON.

  • Deposit

    GEOL., V. 71, 1976, PP. 904-924.

  • Deposit

    208. GARSIDE, L. J. AND H. F. BONHAM, JR. ROAD LOG/TRIP

  • Deposit

    GUIDE: CANDELARIA MINE, GOLDFIELD DISTRICT, TONOPAH

  • Deposit

    DISTRICT, AND BELL MOUNTAIN MINE, FIELD TRIP 4, PRECIOUS

  • Deposit

    METAL DISTRICTS IN WEST-CENTRAL NEVADA. PAPER IN

  • Deposit

    EXPLORATION FOR ORE DEPOSITS OF THE NORTH AMERICAN

  • Deposit

    CORDILLERA, FIELD TRIP GUIDEBOOK, ED. BY J. L. JOHNSON.

  • Deposit

    SYMP. OF ASSOC. EXPL. GEOCHEM., RENO, NV,

  • Deposit

    MAR. 25-28, 1984, PP. FT4 1-27.

  • Deposit

    209. GARSIDE, L. J. ROAD LOG/TRIP GUIDE: STERLING MINE,

  • Deposit

    GOLDFIELD DISTRICT, HASBROUCK MOUNTAIN (DIVIDE DISTRICT),

  • Deposit

    TONOPAH DISTRICT, AND BOREALIS MINE, FIELD TRIP 3, PRECIOUS

  • Deposit

    METAL DISTRICTS IN SOUTHERN AND WESTERN NEVADA. PAPER IN

  • Deposit

    MAR. 25-28, 1984, PP. FT3 1-31.

  • Deposit

    246. HARVEY, R. D., AND C. J. VITALIANO. WALL-ROCK

  • Deposit

    ALTERATION IN THE GOLDFIELD DISTRICT, NEVADA. J. GEOL.,

  • Deposit

    VOLUME 72. NO. 5, 1964, PP. 564-579.

  • Deposit

    325. JENSEN, M. L., R. P. ASHLEY, AND J. P. ALBERS.

  • Deposit

    PRIMARY AND SECONDARY SULFATES AT GOLDFIELD, NEVADA. ECON.

  • Deposit

    GEOL. AND BULL. SOC. ECON. GEOL., V. 66, 1971,

  • Deposit

    PP. 618-626.

  • Deposit

    340. KEITH, W. J., L. CALK, AND R. P. ASHLEY. CRYSTALS OF

  • Deposit

    COEXISTING ALUNITE AND JAROSITE, GOLDFIELD, NEVADA. U.S.

  • Deposit

    GEOL. SURV. PROF. PAPER 1124-C, 1979, PP. C1-C5.

  • Deposit

    497. NEVADA MINING ASSOCIATION (RENO). GOLDFIELD MAY BE

  • Deposit

    SCENE OF JOINT VENTURE OPEN-PIT MINE. NV MIN. ASSOC. BULL.,

  • Deposit

    V. 7, NO. 3, 1983, P. 18.

  • Deposit

    576. RANSOME, F. L. GEOLOGY AND ORE DEPOSITS OF

  • Deposit

    GOLDFIELD, NEVADA. U.S. GEOL. SURV. PROF.

  • Deposit

    PAPER 66, 1909, 258 PP.

  • Deposit

    627. SILBERMAN, M. L., AND R. P. ASHLEY. AGE OF ORE

  • Deposit

    DEPOSITION AT GOLDFIELD, NEVADA, FROM POTASSIUM-ARGON

  • Deposit

    DATING OF ALUNITE. ECON. GEOL. AND BULL. SOC. ECON. GEOL.,

  • Deposit

    V. 65, NO. 3, 1970, PP. 352-354. 628. SILBERMAN, M. L., B.

  • Deposit

    R. BERGER, AND R. A. KOSKI. K-AR AGE RELATIONS OF

  • Deposit

    GRANODIORITE EMPLACEMENT AND TUNGSTEN AND GOLD

  • Deposit

    MINERALIZATION NEAR THE GETCHELL MINE, HUMBOLDT COUNTY,

  • Deposit

    NEVADA. ECON. GEOL. AND BULL. SOC. ECON. GEOL., V. 69,

  • Deposit

    NO. 5, 1974, PP. 646-656.

  • Deposit

    631. SILBERMAN, M. L., AND E. H. MCKEE. AGES OF TERTIARY

  • Deposit

    VOLCANIC ROCKS AND HYDROTHERMAL PRECIOUS-METAL DEPOSITS IN

  • Deposit

    CENTRAL AND WESTERN NEVADA. NV BUREAU OF MINES AND GEOL.

  • Deposit

    REP. 19, 1974, PP. 67-72.

  • Deposit

    632. SILBERMAN, M. L., J. H. STEWART, AND E. H. MCKEE.

  • Deposit

    IGNEOUS ACTIVITY, TECTONICS, AND HYDROTHERMAL

  • Deposit

    PRECIOUS-METAL MINERALIZATION IN THE GREAT BASIN DURING

  • Deposit

    CENOZOIC TIME. PRES. AT SOC. MIN. ENG. AIME ANNU. MEETING,

  • Deposit

    LAS VEGAS NV, FEB. 1976. SOC. MIN. ENG. PRE-

  • Deposit

    PRINT 76-1102, 18 PP.

  • Deposit

    703. TAYLOR, H. P. 018/016 EVIDENCE FOR

  • Deposit

    METEORIC-HYDROTHERMAL ALTERATION AND ORE DEPOSITION IN THE

  • Deposit

    TONOPAH, COMSTOCK LODE, AND GOLDFIELD MINING DISTRICTS,

  • Deposit

    NEVADA. ECON. GEOL. AND BULL. SOC. ECON. GEOL., V. 68,

  • Deposit

    NO. 6, 1973, PP. 747-764.

  • Deposit

    809. WISSER, E. RELATION OF ORE DEPOSITION TO DOMING IN

  • Deposit

    THE NORTH AMERICAN CORDILLERA. GEOL. SOC. AM.

  • Deposit

    MEMOIR 77, 1960, 117 PP.

  • Deposit

    DIRECTORY OF NEVADA MINING OPERATIONS ACTIVE DURING

  • Deposit

    CALENDAR YEAR 1987. NV DIVISION OF MINE INSPECTION,

  • Deposit

    MAY 1988.

  • Deposit

    1995/96, NEVADA MINES DIRECTORY, PP. 3, 22, 23.

  • Deposit

    NATIONAL ASSESSMENT, 1995, U.S. DEPOSIT DATA BASE, #124.

General comments

Subject category Comment text
Deposit THIS PROPERTY COVERS PORTIONS OF SECTIONS 25, 26, 35, AND 36, T. 2 S., R. 42 E, AND SEC. 1, T. 3 S, R. 42 E.

Reporter information

Type Date Name Affiliation Comment
Reporter 04-AUG-97 Buckingham, David A. U.S. Bureau of Mines