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Vazante

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

Geologic information

Identification information

Deposit ID 10304320
MAS/MILS ID 3510230012
Record type Site
Current site name Vazante
Alternate or previous names Serra Do Poco Verde, Fazenoa Olho D Agua, Sucuri, Cia Mineira De Metais Vazante

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -46.93232, -17.86427 (WGS84)
Elevation 820

Site location context

Political divisions (FIPS codes)

Minas Gerais(province)

Brazil(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Brazil Minas Gerais

Commodities

Commodity Importance
Zinc Critical Primary

Nearby scientific data

Ore Body (1) -46.93232, -17.86427
ListMap

Economic information

Ore body information

  • Strike N45E
    Dip 65E
    Thickness 100M
    Width 30M
    Field Value
    Type of Orebody #1 BRECCIA FILL
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 STOCKWORK
    Primary mode of Origin HYDROTHERMAL
    Secondary mode of Origin OXIDATION
    Primary Ore Control OTHER
    Secondary Ore Control FAULTING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 SILICIFICATION
    Strike And Dip N45E:65E
    Minimum Depth to Top 0
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 780213

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Producer
Commodity type Metallic
Significant Yes
Discovery year 1952
Mining method Combined Methods
Year of first production 1969
Milling method Flotation

Mining district

District name Vazante

Ownership information

  • Type Owner-Operator
    Owner Companhia Mineira De Metais, S. A.
    Interest 100
    Home office Brazil
    Year 1989

Production statistics

  • Year 1976
    Description 131398 Mt Per Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 131398mt
  • Year 1977
    Description 159025 Mt Per Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 159025mt
  • Year 1978
    Description 159026 Mt Per Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 159026mt
  • Year 1979
    Description 327573 Mt Per Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 327573mt
  • Year 1980
    Description 452391 Mt Per Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 452391mt
  • Year 1981
    Description 426508 Mt Per Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 426508mt
  • Year 1982
    Description 500025 Mt Per Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 500025mt
  • Year 1983
    Description 496553 Mt Per Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 496553mt
  • Year 1984
    Description 479594 Mt Per Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 479594mt
  • Year 1985
    Description 500450 Mt Per Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 500450mt
  • Year 1986
    Description 600000 Mt Per Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 600000mt

Comments on the production information

  • LINE 1 REFLECTS TOTAL CONCENTRATES PRODUCED. LINE 2 REFLECTS THE PROJECTED DILUTION, MILL RECOVERY, AND CONCENTRATE GRADE FOR ORE FROM THE UNDERGROUND OPERATIONS.

Reserves and resources

  • Type In-situ
    Estimate year 1988
    Inferred 12050000mt ore
    Total resources 12050000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 16 wt-pct Zinc Major 1988

Comments on the reserve resource information

  • DATA FROM PAH REPORT.
  • MATRIX #1, COL. #1 DATA MOVED FORM COL. #3, NO OTHER INFORMATION WAS AVAILABLE ON THIS RESOURCE ESTIMATE. Q-MATRIX #1; COL. #3 CALAMINE ORE, DEMONSTRATED LEVEL: Q-MATRIX #1; COL. #4 WILLEMITE ORE; DEMONSTRATED LEVEL: Q MATRIX 1, COL.5; DEMONSTRATED LEVEL UNDERGROUND ORE RESOURCES: Q MATRIX 2, INFERRED RESOURCES OF CALAMINE ORE, 125000MT; WHEN ADDED TO DEMONSTRATED CALAMINE ORE OF QM1,COL3, FOR A TATAL OF 3750000MT CALAMINE ORE AT THE 50% LEVEL: Q MATRIX #2 COL. #4; WILLEMITE ORE INFERRED LEVEL RESOURCES TOTAL 50% LEVEL WILLEMITE ORE RESOURCES IS 2250000MT WHEN ADDED TO DEMONSTRATED WILLEMITE ORE OF QM1C4; 1500000MT: INFERRED UNDERGROUND ORE OF 2000000MT; FOR A TOTAL OF 6000000MT ORE AT THE 50% LEVEL, WHEN ADDED TO THE DEMONSTRATED UNDERGROUND ORE OF 4000000MT IN Q-M#1,COL#4: Q-MATRIX 3; INSITU ORE RESERVES AS OF JAN 1986 ESTIMATED BY PAH AND MAFO, USED IN THE 1986 UPDATE STUDY OF LEAD/ZINC: Q MATRIX 9; RECOVERABLE ORE RESERVES AS OF JANUARY 1986, USING 34.69% ORE DIL, WITH 100% MINE REC. ACTUAL DILUTION, CALAMINE ORE 20%; WILLEMITE ORE 50%:
  • THIS OPERATION CONSISTS OF A SURFACE AND UNDERGROUND MINE. THE SURFACE MINE IS PRODUCING ORE, THE UNDERGROUND MINE WILL START UP IN 1997-98, WHEN THE SURFACE ORE RESERVE ARE DEPLETED.

Workings at the site

  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method OPEN PIT
    Percent Waste Rock 87.5
    Max. Pit Slope (degrees) 70
    Capacity 1670
    Capacity Units MT ORE/DAY
    Operating Days per Year 360
    Operating Shifts per Day 3
    Year of Information 1989
  • Type of workings Underground
    Overall depth 350M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method SUBLEVEL 10-43
    Number of Shafts 1
    Number of Inclines 1
    1st Condition of Workings FLOODED
    Capacity 1670
    Capacity Units MT ORE/DAY
    Operating Days per Year 360
    Operating Shifts per Day 3
    Year of Information 1989

Comments on other economic factors

  • UNDERGROUND MINE DEVELOPMENT 1984 TO 1996. UNDERGROUND DEVELOPMENT HAS BEEN HAMPERED BY LARGE INFLOWS OF WATER.

Reference information

Bibliographic references

  • Reserve-Resource

    U.S.G.S., OPEN FILE REPORT; "LEAD AND ZINC RESOURCES OF

  • Reserve-Resource

    BRAZIL", BY MAX G. WHITE AND RAYMOND H. NEGELL, 1979, 40P:

  • Reserve-Resource

    THE RESOURCES IN COLUMNS #1 TO #3 ARE THE PUBLISHED

  • Reserve-Resource

    RESOURCES FOR THE VAZANTE ZINC DEPOSIT: COL #1 ARE THE

  • Reserve-Resource

    PROVEN RESOURCES, COL. #2 ARE THE PROBABLE RESOURCES, AND

  • Reserve-Resource

    COL. #3 ARE THE POSSIBLE RESOURCES: THEIR IS NO UPDATE DATA

  • Reserve-Resource

    ON THE RESOURCES OF THIS DEPOSIT SINCE THIS REPORT:

  • Deposit

    BARONE, REGINA H.D.T., 1973, PERFIL ANALITICO DE ZINCO: DNPM

  • Deposit

    M NO. 26, RIO DE JANEIRO, 37P.

  • Deposit

    LEFOND, S.J., 1973, BRAZILIAN MINING: RELAXED GOV T. ATTITUD

  • Deposit

    THE WAY FOR EXPLOITING CRITICAL RESERVES: MIN. ENG. V.25

  • Deposit

    31-45.

  • Deposit

    MOORE, S.L., 1956, ZINC AND COPPER DEPOSITS AT THE VAZANTE A

  • Deposit

    NAS GERAIS, BRAZIL: U.S. GEOLOGICAL SURVEY, OPEN FILE REPORT

General comments

Subject category Comment text
Deposit 75-RCD 020 OPER HQ IS BELO HORIZONTE, MINAS GERAIS, BRAZIL 75-RCD 080 DEP IS FAULT BRECCIA CEMENTED BY ZINC SILICATES 75-RCD 080 FAZENDA SALOBRO 935123011 IS ON SAME FAULT ZONE 75-RCD 080 DISTRIBUTION OF DEPOSIT BETWEEN TWO OPERATORS ISU 75-RCD 080 SIGNIFICANT DIFFERENCES REQUIRE SEPARATE TREATMEN 75-RCD 130 OPEN PIT MINING IS HIGHLY MECHANIZED 75-RCD 130 STRIPPING RATIO 6 BARREN:1 ORE 75-RCD 130 CURRENT PRACTICE IS TOSTOCKPILE ORE LESS THAN 40% 75-RCD 130 EST CAP IS DIRECT SHIPPING, STOCKPILE NOT INCLUDE 75-RCD 130 EST PROD PERIOD IS 180YEARS AT CURRENT RATE METAL 75-RCD 130 PROJECTED INGREASE TO 60000 MTPY ZN LEAVES 45 YEA 75-RCD 140 UNCLAS PROC IS ELECTROLYTIC PLANT NEAR TRES MARIA 75-RCD 140 PLANT LOC NOT SPECIFICALLY KNOWN. DISTANCE IS TO 75-RCD 151 PROJECTED EXPANSION OFBARREIRO GRANDE (TRES MARIA 75-PLAN 24000 MTPY ZN INSTALLED ELECTROLYTIC CAP BY 1973 75-PLAN 50000 MTPY ZN INSTALLED CAP BY 1977, VOLATILIZATION 75-PLAN 75000 MTPY ZN INSTALLED CAP BY 1980

Reporter information

Type Date Name Affiliation Comment
Reporter 04-NOV-1991 Difrancesco, Carl A. 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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