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Dee Gold Mine

Producer in Elko county in Nevada, United States with commodities Gold, Silver, Antimony, Arsenic, Mercury, Thallium, Barium-Barite
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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 10047016
MRDS ID M242256
Record type Site
Current site name Dee Gold Mine
Alternate or previous names Boulder Creek Mine, Main Zone, Ridge Zone, North Extension
Related records 10124478, 10310338

Geographic coordinates

Geographic coordinates: -116.4276, 41.0324 (WGS84)
Elevation 2012
Relative position APPROX. 1 MILE NW OF BOOTSTRAP MINE; 30 MILES NW OF CARLIN, NV.

Site location context

Political divisions (FIPS codes)

Elko(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Santa Renia Fields(quadrangle 1:24,000 scale)

Tuscarora(quadrangle 1:100,000 scale)

McDermitt(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Humboldt(hydrologic unit)

Humboldt(hydrologic accounting unit)

Black Rock Desert-Humboldt(hydrologic subregion)

Great Basin(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management NV)

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

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Nevada Elko

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 36N;37N 49E;49E 3;34 Nevada

Comments on the location information

  • DEE IS THE NORTHERNMOST DEPOSIT OF THE CARLIN TREND, ALTHOUGH SOME AUTHORS CONTINUE THE TREND NORTHWARD TO INCLUDE THE HOLLISTER OREBODIES. . INFO FROM LAND.ST :1972; PREVIOUS QUAD DESIGNATION = MCDERMITT (1971) 1:250000; PREVIOUS QUAD DESIGNATION = SANTA RENIA FIELDS (1970) 1:24000

Commodities

Commodity Importance
Gold Primary
Silver Primary
Antimony Critical Tertiary
Arsenic Critical Tertiary
Mercury Tertiary
Thallium Tertiary
Barium-Barite Critical Tertiary

Materials information

Materials Type of material
Gold Ore
Barite Gangue
Pyrite Gangue
Stibnite Gangue

Alteration

  • (Local) Silicification And Argillization Of Originally Calcareous Siltstones And Limestones Are The Dominant Alteration Effects. Where Mineralized, Intrusive Dikes Of Intermediate Composition Are Sericitized And Often Silicified.

Analytical data

Result BAGBY, ET AL (1985) IDENTIFIED A LARGE MULTIELEMENT (AU, AS, SB, HG, TL, AG) SOIL ANOMALY COVERING PARTS OF ALL KNOWN ORE ZONES. SAMPLES CONTAINING ANOMALOUS HG LIE APPROXIMATELY 60 M DIRECTLY ABOVE ORE, WHEREAS SAMPLES CONTAINING ANOMALOUS TL ARE OFFSET APPROXIMATELY 15 M TO THE SIDE OF KNOWN ORE. KNOWN ORE ZONES ALSO CORRELATE SPATIALLY WITH CLUSTERS OF 3 OR MORE SAMPLES CONTAINING ANOMALOUS CONCENTRATIONS OF AU-HG, AU-SB, OR AS.

Mineral occurrence model information

Model code 172
USGS model code 26a
Deposit model name Carbonate-hosted Au-Ag
Mark3 model number 15

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff
    Rock unit name Vitric Tuff;Intermediate Dikes
    Rock description Vitric Tuff;Intermediate Dikes
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock
    Rock unit name Bootstrap Limestone;Carlin Formation
    Rock description Bootstrap Limestone;Carlin Formation
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate

Nearby scientific data

(1) -116.4276, 41.0324
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Greybeck (1985) Proposes That Dee Is Located At The Leading Edge Of The Golconda Thrust And That Beds Exposed In The Dee Mine Pit Lie On The West Flank Of A Close To Tight N-Ne Trending Antiform.
Type of structure Local
Structure description See Comments

Ore body information

  • General form TABULAR
    Strike NORTHERLY
    Dip STEEP
    Thickness 54.86M
    Length 304.8M
    Width 213.36M

Controls for ore emplacement

  • Northerly- And Northwesterly-Trending Faults And Their Intersections Host Au Mineralization. These Faults Can Host Au Values Exceeding 0.25 Opt Au Over Narrow Widths, Suggesting They Are The Main Conduits For Au-Bearing Hydrothermal Fluids. Dikes Occupying The Faults Host Small Volumes Of High Grade Ore. Economic Au Mineralization Rarely Migrated More Than A Few Feet From The Faults.

Comments on the geologic information

  • WESTERN FACIES, UPPER PLATE ROCKS HOST THE ORE.

Economic information about the deposit and operations

Development status Producer
Commodity type Both
Deposit size Small
Significant No
Discovery year 1980
Discoverer G.W. Delamare
Year of first production 1984
Production years 1984-PRESENT (3/92)

Mining district

District name Bootstrap District

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Joint Venture Owner
    Owner Cordex Syndicate
  • Type Joint Venture Partner
    Owner Rayrock Yellowknife Resources
    Interest 44
  • Type Joint Venture Partner
    Owner International Corona Corp.
    Interest 44
  • Type Joint Venture Partner
    Owner Livermore, Mr. John S.
    Interest 12
  • Type Operator
    Owner Dee Gold Mining Co. ; Art Schwandt, Gen. Mgr.
    Home office P.O. Box 1193, Elko, Nv 89801
    First year 1983

Production statistics

  • Year 1988
    Material ORE - AU
    Accuracy Accurate
    Description Ap_Grade: ^0.105 Opt Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 3g/mt
  • Year 1989
    Material ORE - AU
    Accuracy Accurate
    Description Ap_Grade: ^0.047 Opt Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 1g/mt
  • Year 1990
    Material ORE - AU
    Accuracy Accurate
    Description Ap_Grade: ^0.049 Opt Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 1g/mt

Comments on the production information

  • 1988 AU RECOVERY WAS 57.07%, FOR A RECOVERABLE GRADE OF 0.06 OPT AU. 1989 AU RECOVERY WAS 85.60%, FOR A RECOVERABLE GRADE OF 0.04 OPT AU. 1990 AU RECOVERY WAS 81.40%, FOR A RECOVERABLE GRADE OF 0.04 OPT AU.

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Commodity Subtype Grade units Group Importance Year
    Gold Au 15.67 g/mt Gold Major 1982
  • Type Milling
    Estimate year 1984
    Commodity Subtype Grade units Group Importance Year
    Gold Au 3.247 g/mt Gold Major 1984
  • Type Leaching
    Estimate year 1984
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.705 g/mt Gold Major 1984
  • Type In-situ
    Estimate year 1985
    Total resources 43000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 3.755 g/mt Gold Major 1985
  • Type In-situ
    Estimate year 1986
    Total resources 9000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 2.145 g/mt Gold Major 1986
  • Type In-situ
    Estimate year 1987
    Commodity Subtype Grade units Group Importance Year
    Gold Au 2.823 g/mt Gold Major 1987
  • Type Milling
    Estimate year 1988
    Commodity Subtype Grade units Group Importance Year
    Gold Au 2.738 g/mt Gold Major 1988
  • Type Leaching
    Estimate year 1988
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.705 g/mt Gold Major 1988
  • Type In-situ
    Estimate year 1990
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.524 g/mt Gold Major 1990

Comments on the reserve resource information

  • PROJECTED ANNUAL RECOVERY WAS 40000 OZ. AU/YR. 1984 FIGURES REPRESENT COMBINED PRE-MINING RESERVE ESTIMATES FOR THE MAIN AND RIDGE OREBODIES. 1990 FIGURES REPRESENT PROVEN AND PROBABLE RESERVES AS OF 12/31/90.

Comments on the workings information

  • DEE HAS A 900 TPD CAPACITY CYANIDE LEACHING MILL WITH A CARBON-IN-PULP CIRCUIT TO RECOVER GOLD. THE HEAP LEACH IS PLANNED TO TREAT APPROX. 0.5 MILLION TONS PER YEAR. APPROXIMATELY 55% AU RECOVERY IS ACHIEVED FROM HEAP LEACHING OVER A SIX WEEK PERIOD. AVERAGE RATIO OF WASTE TO COMBINED ORE IS 6:1. THE TOTAL AREA DISTURBED BY THE OPERATIONS WILL NOT EXCEED 400 ACRES.

Comments on development

  • EXPL.COM: THE ORIGINAL DISCOVERY WAS MADE IN BOULDER CREEK IN 1980 BY DELAMARE, WORKING FOR CORDEX EXPLORATION CO. SUBSEQUENT DRILLING OF 247 HOLES TOTALLING 120,000 FT. LOCATED THE MAIN AND RIDGE OREBODIES. A MINE FEASIBILITY STUDY WAS COMMISSIONED IN 1982. THE PRODUCTION DECISION WAS MADE IN APRIL, 1983. PRODUCTION OF MILL GRADE ORE BEGAN IN 1984. A HEAP LEACHING OPERATION TO TREAT LOWER GRADE ORE COMMENCED JUNE 1, 1985. ; TOTAL$: 21.0 ; ECON.COM: CASH COSTS OF AU PRODUCTION WERE <$200/OZ. IN 1987, $204/OZ. IN 1988, $247/OZ. IN 1989, AND $264/OZ. IN 1990. MINING COSTS WERE $6 PER TON MILLED IN 1987. THE DEE MINE HAS A PROJECTED MINE LIFE OF NINE YEARS AND HAS CREATED 100 PERMANENT NEW JOBS WITH A PAYROLL OF $3.0 MILLION PER YEAR. TOTAL EXPENDITURE ON PAYROLL, SUPPLIES, SERVICES, TAXES, AND ROYALTIES EXCEEDS $7.0 MILLION PER YEAR.

Reference information

Bibliographic references

  • Deposit

    BONHAM, H.F., 1982, RESERVES, HOST ROCKS, AND AGES OF BULK-MINEABLE PRECIOUS METAL DEPOSITS IN NEVADA; NBMG OPEN-FILE REPORT 82-11.

  • Deposit

    PAYDIRT, APRIL 1983, PG 27 A.

  • Deposit

    DIRECTORY OF NEVADA MINE OPERATIONS ACTIVE DURING CALENDAR YEAR 1983.

  • Deposit

    BONHAM, H.F., 1986, NBMG MAP 91.

  • Deposit

    NBMG MI - 1986.

  • Deposit

    MCFARLANE, D., 1992, GOLD PRODUCTION IN THE CARLIN TREND, IN BUFFA, R. AND COYNER, A., EDS., GEOLOGY AND ORE DEPOSITS OF THE GREAT BASIN - FIELD TRIP GUIDEBOOK COMPENDIUM, THE GEOLOGICAL SOCIETY OF NEVADA, RENO, P. 841-843.

  • Deposit

    ABBOTT, E., LAUX, D., KEITH, S., 1992, GEOCHEMISTRY AND ORE DEPOSITS - INFLUENCE OF MAGMA CHEMISTRY, IN BUFFA, R. AND COYNER, A., EDS., GEOLOGY AND ORE DEPOSITS OF THE GREAT BASIN - FIELD TRIP GUIDEBOOK COMPENDIUM, THE GEOLOGICAL SOCIETY OF NEVADA, RENO, P. 568.

  • Deposit

    BERGWALL, F., 1992, GEOLOGY OF THE DEE GOLD MINE, IN BUFFA, R. AND COYNER, A., EDS., GEOLOGY AND ORE DEPOSITS OF THE GREAT BASIN - FIELD TRIP GUIDEBOOK COMPENDIUM, THE GEOLOGICAL SOCIETY OF NEVADA, RENO, P. 867.

  • Deposit

    MINING JOURNAL/MONTAGU MINING FINANCE, MINING DATABASE, 8/10/91.

  • Deposit

    BAGBY, W.C., PICKTHORN, W.J., AND GOLDFARB, R.J., 1985, PATHFINDER ELEMENTS IN SOILS OVER THE DEE DISSEMINATED GOLD DEPOSIT, ELKO COUNTY, NEVADA, IN KRAFFT, K., ED., USGS RESEARCH ON MINERAL RESOURCES-1985, PROGRAM AND ABSTRACTS, USGS CIRCULAR 949, P.1.

  • Deposit

    GREYBECK, J.D., 1985, GEOLOGY OF THE DEE MINE AREA, ELKO COUNTY, NEVADA, UNPUBLISHED M.S. THESIS, UNIVERSITY OF IDAHO.

  • Deposit

    JONES, R., 1989, CARLIN TREND GOLD BELT: THE GEOLOGY, MINING MAGAZINE, VOL. 161, NO. 4, P. 256-261.

  • Deposit

    THORSTAD, L., 1989, CARLIN TREND GOLD BELT: THE PRODUCERS, MINING MAGAZINE, VOL. 161, NO. 4, P. 263-267.

  • Deposit

    ELLIS, R., 1987, THE DEE GOLD MINE, GEOLOGICAL SOCIETY OF NEVADA 1987 FALL FIELD TRIP GUIDEBOOK, SPECIAL PUBLICATION NO. 6, P. B23-B26.

  • Deposit

    NBMG, 1991, THE NEVADA MINERAL INDUSTRY 1990, NBMG SPECIAL PUBLICATION MI-1990.

  • Deposit

    NBMG, 1994, MI-1993

  • Deposit

    NEVADA DIVISION OF MINERALS,1994

  • Production

    DIVISION OF MINE INSPECTION, 1983, DIRECTORY OF NEVADA MINE OPERATIONS ACTIVE DURING CALENDAR YEAR 1983. MCFARLANE, D., 1992, GOLD PRODUCTION IN THE CARLIN TREND, IN BUFFA, R. AND COYNER, A., EDS., GEOLOGY AND ORE DEPOSITS OF THE GREAT BASIN - FIELD TRIP GUIDEBOOK COMPENDIUM, THE GEOLOGICAL SOCIETY OF NEVADA, RENO, P. 841-843. MINING JOURNAL/MONTAGU MINING FINANCE, MINING DATABASE, 8/10/91. NBMG, 1991, THE NEVADA MINERAL INDUSTRY 1990, NBMG SPECIAL PUBLICATION MI-1990. NBMG MI-1993

  • Reserve-Resource

    NBMG MI-1993

General comments

Subject category Comment text
Deposit DEE CONSISTS OF TWO OREBODIES, THE MAIN AND RIDGE ZONES. DIMENSIONS ARE FOR THE MAIN OREBODY.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1983 Tingley, J.V. Nevada Bureau of Mines and Geology
Updater 01-SEP-1988 La Pointe, D.D. Nevada Bureau of Mines and Geology CHECKED AND MODIFIED ROCK TYPE, ROCK UNIT AND AGES FIELDS.
Updater 01-MAR-1992 Phinisey, J. D. (Marcus, S.) U.S. Geological Survey
Updater 01-SEP-1994 Li, Zhiping (Moyer, Lorre A.) U.S. Geological Survey

Beyond USGS

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

Maps centered on this site

Authoritative Nevada resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.