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Morococha

Plant in Junin, Peru with commodities Copper, Lead, Silver, Tungsten, 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. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Production statistics
  15. Reserves and resources
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10304400
MRDS ID W029832
MAS/MILS ID 3330210007
Record type Site
Current site name Morococha
Related records 10079730

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -76.18302, -11.58118 (WGS84)
Elevation 4509
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Junin(province)

Peru(country)

South America(continent)

Land(continent)

Federal lands

Federal(land status)

Geographic areas

Country State
Peru Junin

Commodities

Commodity Importance
Copper Primary
Lead Primary
Silver Primary
Tungsten Critical Tertiary
Zinc Critical Primary

Materials information

Materials Type of material
Biotite Unknown
Chalcopyrite Unknown
Diopside Unknown
Epidote Unknown
Galena Unknown
Garnet Unknown
Pyrite Unknown
Quartz Unknown
Sphalerite Unknown
Tennantite Unknown
Tetrahedrite Unknown

Nearby scientific data

Ore Body (1) -76.18302, -11.58118
ListMap

Economic information

Ore body information

  • Thickness 100M
    Length 800M
    Width 100M
    Depth to top 0M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 REPLACEMENT
    Shape of Orebody #1 PIPELIKE
    Type of Orebody #2 BRECCIA FILL
    Shape of Orebody #2 MASSIVE
    Primary mode of Origin CONT METASOMATIC
    Secondary mode of Origin METAMORPHISM
    Primary Ore Control LITHOLOGY
    Secondary Ore Control CONTACT ZONE
    Degree of Wallrock Alter. INTENSE
    Type of Wallrock Alter. #1 CARBONATE SILIC
    Type of Wallrock Alter. #2 ADV ARGILLIC
    Type of Wallrock Alter. #3 PYRITIZATION
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 920903

Economic information about the deposit and operations

Operation type Underground
Development status Plant
Commodity type Metallic
Significant Yes
Discovery year 1634
Mining method Combined Methods
Year of first production 1634
Plant type Beneficiation (Mill)
Plant subcategory Flotation
Milling method Flotation

Mining district

District name Morococha Mining District

Mineral rights holdings

Type of mineral rights State Lease
Type of mineral rights Minerals Only

Land status

Ownership category Federal

Ownership information

  • Type Owner-Operator
    Owner Empresa Minera Del Centro Del Peru (Centromin)
    Interest 100
    Home office Peru
    Year 1989

Production statistics

  • Year 1990
    Accuracy Estimate
    Description Ore Production, Rated Capacity 1450 Mt/Day

Comments on the production information

  • RECORD D IS FOR TOTAL CONTAINED SILVER IN ALL CONCENTRATES.

Reserves and resources

  • Type In-situ
    Estimate year 1975
    Indicated 360000000mt ore
    Demonstrated 360000000mt ore
    Total resources 360000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.76 wt-pct Copper Major 1975
  • Type In-situ
    Estimate year 1975
    Measured 180000000mt ore
    Demonstrated 180000000mt ore
    Total resources 180000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.8 wt-pct Copper Major 1975
  • Type In-situ
    Estimate year 1979
    Indicated 4082000mt ore
    Demonstrated 4082000mt ore
    Total resources 4082000mt ore
    Commodity Subtype Grade units Group Importance Year
    Lead Pb 0.9 wt-pct Lead Major 1979
    Copper Cu 0.95 wt-pct Copper Major 1979
  • Type In-situ
    Estimate year 1990
    Measured 3019715mt ore
    Demonstrated 3019715mt ore
    Total resources 3019715mt ore
    Commodity Subtype Grade units Group Importance Year
    Lead Pb 1.4 wt-pct Lead Major 1990
    Copper Cu 1 wt-pct Copper Major 1990
    Zinc Zn 4 wt-pct Zinc Major 1990
    Silver Ag 209.143 g/mt Silver Major 1990

Comments on the reserve resource information

  • RESERVES AS STATED IN A JUNE, 1979 CENTROMIN INTERNAL REPORT. PUBLIC MINE OUTPUT AND RESOURCE INFORMATION FROM E&MJ INTERNATIONAL DIRECTORY OF MINING, 1987-88; ITS SILVER GRADE IS 127 PPM. 1988 SILVER PRODUCTION OF 1,295,609 OZ.
  • DATA FROM PAH REPORT.

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
    Year of Information 1989
  • Type of workings Underground
    Overall depth 1700M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method SHRINKAGE W/CUT AND FILL
    Number of Shafts 3
    Year of Information 1989

Reference information

Bibliographic references

  • Deposit

    *CRU METAL MONITOR, ZINC, DEC. 1991, P. 8.

  • Reserve-Resource

    PAZOUR, DONALD A., FIVE PRODUCT MINE SHOWS NO SIGNS OF

  • Reserve-Resource

    DYING, WORLD MINING, NOVEMBER 1979, PP. 56-58.

  • Reserve-Resource

    MINING JOURNAL, PERU: ATTACK ON MOROCOCHA, JANUARY 6, 1989,

  • Reserve-Resource

    P. 5.

  • Reserve-Resource

    LATIN AMERICAN MINING LETTER, PERU: TERRORIST ATTACK LEAVES

  • Reserve-Resource

    UNIT IDLE, VOL 7, NO. 24, JANUARY 5, 1989, P. 6.

  • Reserve-Resource

    THE PERU REPORT'S "LAS MINAS DEL PERU - MINES AND MINERS IN

  • Reserve-Resource

    PERU", PP 139, 140.

  • Reserve-Resource

    AME MINERAL ECONOMICS QUARTERLY MINE ANALYSIS, JUNE 1993,

  • Reserve-Resource

    P. 39, 49.

  • Deposit

    PURSER, W. F., 1971, METAL-MINING IN PERU, PAST AND PRESENT:

  • Deposit

    PRAEGER PUBS., NEW YORK, 339 PGS.

  • Deposit

    JENKS, W. F., 1956, HANDBOOK OF SOUTH AMERICAN GEOLOGY:

  • Deposit

    GEOLOGY OF SOUTH AMERICA, MEM. 65, PGS. 215-247.

  • Deposit

    PETERSEN, U., 1965, REGIONAL GEOLOGY AND MAJOR ORE DEPOSITS

  • Deposit

    CENTRAL PERU: ECON. GEOL. VOL. 60, NO. 3, P. 407.

  • Deposit

    MARK, W. D., FAULKNER, R. L., GRATON, L. C., 1942, LOCAL-

  • Deposit

    IZATION OF CERTAIN ORE BODIES AT MOROCOCHA, PERU: IN ORE

  • Deposit

    DEPOSITS AS RELATED TO STRUCTURAL FEATURES; W. H. NEWHOUSE

  • Deposit

    ED., HAFNER PUBLISHING COMPANY, NEW YORK, P. 239, 1969 ED.

  • Deposit

    EYZAGUIRRE, V, MONTOYA, D., SILBERMAN, M., NOBLE, D., 1975,

  • Deposit

    IGNEOUS ACTIVITY AND MINERALIZATION, MOROCOCHA DIST.,

  • Deposit

    PERU: GEOL. VOL. 70, NO.6, P. 1123.

  • Deposit

    TERRONES, A., 1958, STRUCTURAL CONTROL OF CONTACT

  • Deposit

    METASOMATIC DEPOSITS IN THE PERUVIAN CORDILLERA, AIME

  • Deposit

    VOL. 221, PAGE ??.

  • Deposit

    E & M J, 1975, WORLD ROUNDUP, MCGRAW HILL, NEW YORK, JAN.,

  • Deposit

    1975, P. 78.

  • Deposit

    METALS SOURCEBOOK 2/12/73 ITEM (A1289)

General comments

Subject category Comment text
Deposit DISCOVERED PRE-1634. OPEN PIT DAILY MINING RATE ESTIMATED BY JENKS STATES EXCELSIOR FM MAY BE ORDOVICIAN. EMJ, 1975, SAYS PLANNED FOR 1981 IS 83000 TPY CU WHICH WILL INCREASE AG PROD MILL. 02 PY AND H2504 PROD. BY 270000 TPY, INVESTMENT OF 732 76-RCD 601-604-GRADES IN COL. 3 ARE ACTUAL 1974 MINED ORE GR 1973-PRODUCTION IN 1972 WAS 35,000 TONS OF CU, 2,000 TONS OF 9,600 TONS OF ZINC AND 290 TONS OF TUNGSTEN.
Deposit AN ATTACK BY THE SHINING PATH INSURGENT GROUP, IN 1989, DISTROYED MOST OF THE SURFACE FACILITIES. 1990 ORE PRODUCTION WAS REDUCED TO 63% OF RATED CAPACITY (1450MTPD). *ON NOV. 12, 1991, 50% OF CENTROMINS WORKFORCE WENT ON STRIKE. (DEC. 1991)

Reporter information

Type Date Name Affiliation Comment
Reporter 10-MAR-97 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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