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  3. Mineral Resource Data System (MRDS)

Pueblo Viejo/Montenegro

Producer in Sanchez Ramirez, Dominican Republic with commodities Gold, Silver
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Ownership information
  12. Production statistics
  13. Reserves and resources
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10255456
MAS/MILS ID 2470410001
Record type Site
Current site name Pueblo Viejo/Montenegro
Alternate or previous names Pueblo Viejo, No Alternate Names

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -70.17456, 18.93394 (WGS84)
Elevation 150
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Sanchez Ramirez(province)

Dominican Republic(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Dominican Republic Sanchez Ramirez

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Materials information

Materials Type of material
Kaolinite Unknown
Pyrite Unknown
Pyrophyllite Unknown
Quartz Unknown
Sphalerite Unknown

Nearby scientific data

Ore Body (1) -70.17456, 18.93394
ListMap

Economic information

Ore body information

  • Thickness 25M
    Length 1000M
    Width 300M
    Depth to top 0M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 REPLACEMENT
    Shape of Orebody #1 MASSIVE
    Primary mode of Origin HYDROTHERMAL
    Secondary mode of Origin OXIDATION
    Primary Ore Control FAULTING
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 INTERM ARGILLIC
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 861215
  • Area 7000HA
    Field Value
    Total Surface Area (HA) 7000
    Date of Last Modification 910418

Comments on the geologic information

  • MINERALIZATION AND ALTERATION ARE THOUGHT TO BE CAUSED FROM A PRECIOUS METALS-BEARING HOT SPRING SYSTEM.

Economic information about the deposit and operations

Operation type Surface
Development status Producer
Commodity type Metallic
Significant Yes
Mining method Open Pit
Year of first production 1975

Mining district

District name Sanchez Ramirez

Ownership information

  • Type Owner
    Owner Rosario Dominicana S. A.
    Interest 100
    Home office Dominican Rep.
    Year 1982
  • Type Operator
    Owner Rosario Resources Corp.
    Home office Dominican Rep.
    Year 1982

Production statistics

  • Year 1975
    Description Au/Ag Oxide Ore Mined 1543000 Metric Tons Per Year
  • Year 1976
    Description Au/Ag Oxide Ore Mined 2623000 Metric Tons Per Yr
  • Year 1977
    Description Au/Ag Oxide Ore Mined 2635999 Metric Tons Per Yr
  • Year 1978
    Description Au/Ag Oxide Ore Mined 2858999 Metric Tons Per Yr
  • Year 1979
    Description Au/Ag Oxide Ore Mined 3216000 Metric Tons Per Yr
  • Year 1980
    Description Au/Ag Oxide Ore Mined 3228000 Metric Tons Per Yr

Reserves and resources

  • Type In-situ
    Estimate year 1980
    Indicated 32962000mt ore
    Demonstrated 32962000mt ore
    Total resources 32962000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 3.66 g/mt Gold Major 1980
    Silver Ag 19.6999 g/mt Silver Minor 1980

Comments on the reserve resource information

  • "Q1" COLUMN REPRESENTS THE MOORE AND E. MEJIDA OREBODIES WHILE COLUMN 2 REPRESENTS THE MONTENEGRO AND MEJIDA II OREBODIES. COLUMN 3 IS A SUMMARY COLUMN FOR 1 AND 2.
  • INCLUDES MONTENEGRO FORMERLY #2470009001A,FUNDED FOR AU. OPERATOR: ROSAROP DP,OMOCAMA S.A.

Workings at the site

  • Type of workings Surface
    Area 60HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method OPEN PIT
    Avg. Overburden Thickness 0
    Hardness of Ore HARD ROCKS
    Avg. Bench Height (meters) 10
    Max. Pit Slope (degrees) 45
    Capacity 10968
    Capacity Units MT ORE/DAY
    Unit Production Cost 4.37
    Units of Production $/MT ORE
    Operating Days per Year 310
    Operating Shifts per Day 2
    Year of Information 1982
  • Type of workings Surface
    Area 60HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method ESTIMATE
    Mining Method OPEN PIT
    Avg. Overburden Thickness 0
    Hardness of Ore HARD ROCKS
    Avg. Bench Height (meters) 10
    Max. Pit Slope (degrees) 45
    Capacity 10968
    Capacity Units MT ORE/DAY
    Unit Production Cost 5.79
    Units of Production $/MT ORE
    Operating Days per Year 310
    Operating Shifts per Day 3
    Year of Information 1982

Comments on other economic factors

  • AN ONSITE REFINERY IS PLANNED TO COME ON-LINE IN 1984. AT THE PRESENT TIME, DORE BULLION IS REFINED IN ZURICH.
  • THE TWO DEVELOPMENT RECORDS REPRESENT A CHANGE IN MINING ZONES; FROM N. MOORE/S. MOORE/E. MEJIDA TO MONTENEGRO/MEJIDA II, WITH A SUBSEQUENT CHANGE IN FEED GRADE OF ORE.
  • "S1" IS THE MINING RECORD FOR THE N. MOORE/S. MOORE/E. MEJIDA FROM 1982-1985 WHILE "S2" IS THE RECORD FOR MONTENEGRO/MEJIDA II FROM 1986-1991.
  • UNTIL 1984 DORE BULLION IS SENT TO AURICH FOR REFINEMENT.

Reference information

Bibliographic references

  • Deposit

    ROSARIO DOMINICANA MEMORIA ANNUAL 1980.

  • Deposit

    KESSLER, S.E., ET AL., GEOLOGY AND GEOCHEMISTRY OF

  • Deposit

    SULFIDE MINERALIZATION UNDERLYING THE PUEBLO VIEJO GOLD-

  • Deposit

    SILVER OXIDE DEPOSIT, DOMINICAN REPUBLIC-ECONOMIC GEOLOGY,

  • Deposit

    VOL. -76, PP. 1096-1117, 1981.

  • Deposit

    MCQUISTON, F.W., AND SHOEMAKER, R.S., GOLD AND SILVER

  • Deposit

    CYANIDATION PLANT PRACTICE, VOL II, AIME, PP. 201-205, 1981.

  • Deposit

    MINING MAGAZINE, PUEBLO VIEJO- A SIGNIFICANT NEW OPEN

  • Deposit

    CAST GOLD PRODUCER, PP. 258-267, OCT 1975.

  • Deposit

    MOOS, S.M. AND ADDISON, R., EXPANSION OF ROSARIO

  • Deposit

    DOMINICANA'S GOLD-SILVER CYANIDE PLANT, MIN. ENG., PP.680-

  • Deposit

    687, JUNE 1980.

  • Deposit

    RUSSELL, N., ET AL., GEOLOGY AND GEOCHEMISTRY OF THE

  • Deposit

    PUEBLO VIEJO GOLD-SILVER OXIDE ORE DEPOSIT, DOMINICAN

  • Deposit

    REPUBLIC- TRANS. INST. MIN. METALL., VOL. 90, SECTION B, PP.

  • Deposit

    153-162, 1981.

  • Deposit

    SISSELMAN, R. ROSARIO DOMINICAN LAUNCHES LATIN AMERI-

  • Deposit

    CAN'S LARGEST GOLD MINE, E/MJ, PP. 71-80, OCTOBER 1975.

General comments

Subject category Comment text
Deposit AS OF 1982 PUEBLO VIEJO MINE IS THE LARGEST OPEN PIT GOLD OPERATION IN THE WORLD.

Reporter information

Type Date Name Affiliation Comment
Reporter 21-OCT-92 Boyle, Ed U.S. Bureau of Mines

Beyond USGS

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

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