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Cerro De Pasco

Plant in Pasco, Peru with commodities Copper, Lead, Silver, 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. Reserves and resources
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10279856
MRDS ID W700062
MAS/MILS ID 3330350002
Record type Site
Current site name Cerro De Pasco
Related records 10084848

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -76.24972, -10.66462 (WGS84)
Elevation 4330
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Pasco(province)

Peru(country)

South America(continent)

Land(continent)

Federal lands

Federal(land status)

Geographic areas

Country State
Peru Pasco

Commodities

Commodity Importance
Copper Tertiary
Lead Primary
Silver Primary
Zinc Critical Primary

Materials information

Materials Type of material
Argentite Unknown
Barite Unknown
Chalcocite Unknown
Chalcopyrite Unknown
Covellite Unknown
Enargite Unknown
Galena Unknown
Marcasite Unknown
Polybasite Unknown
Pyrite Unknown
Quartz Unknown
Silver Unknown
Sphalerite Unknown
Tennantite Unknown
Tetrahedrite Unknown

Nearby scientific data

Ore Body (1) -76.24972, -10.66462
ListMap

Economic information

Ore body information

  • Strike N20W
    Dip 60W
    Thickness 300M
    Length 1800M
    Width 850M
    Area 620HA
    Depth to top 0M
    Field Value
    Type of Orebody #1 SHEAR ZONE
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 BRECCIA FILL
    Shape of Orebody #2 MASSIVE
    Type of Orebody #3 REPLACEMENT
    Shape of Orebody #3 PIPELIKE
    Primary mode of Origin HYDROTHERMAL
    Secondary mode of Origin CONT METASOMATIC
    Primary Ore Control LITHOLOGY
    Secondary Ore Control CONTACT ZONE
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 PYRITIZATION
    Type of Wallrock Alter. #2 PROPYLITIC
    Type of Wallrock Alter. #3 INTERM ARGILLIC
    Strike And Dip N20W:60W
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 620
    Date of Last Modification 780615

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Plant
Commodity type Metallic
Significant Yes
Discovery year 1630
Mining method Combined Methods
Year of first production 1630
Plant type Beneficiation (Mill)
Plant subcategory Flotation
Milling method Flotation

Mining district

District name Cerro De Pasco

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

Comments on the ownership information

  • EMPLOYEES OWN 51% OF THE OPERATION.

Comments on the production information

  • OPERATOR: CERRO DE PASCO. PRODUCED 3,771,084 OZ OF SILVER IN 1988.
  • MOST CONTAINED SILVER IS IN THE LEAD CONCENTRATE. PRODUCTION GRADES ARE; AG-2.6 OZ/TON; PB-3.6% AND ZN-9.3%. EMJ INTERNATIONAL DIRECTORY

Reserves and resources

  • Type In-situ
    Estimate year 1991
    Demonstrated 26300000mt ore
    Inferred 54000000mt ore
    Total resources 80300000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 11.1 wt-pct Zinc Major 1991
    Lead Pb 4.5 wt-pct Lead Major 1991
    Silver Ag 113 g/mt Silver Major 1991
    Copper Cu 0 wt-pct Copper Trace 1991
  • Type In-situ
    Estimate year 1993
    Demonstrated 5220000mt ore
    Total resources 5220000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 5.3 wt-pct Zinc Major 1993
    Lead Pb 3.8 wt-pct Lead Major 1993

Workings at the site

  • Type of workings Surface
    Area 300HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method BENCH (BERM)
    Avg. Overburden Thickness 0
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 15
    Capacity 3300
    Capacity Units MT ORE/DAY
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1975
  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method COMBINED METHODS
    Percent Recovery 90
    Capacity 6560
    Capacity Units MT ORE/DAY
    Operating Days per Year 300
    Year of Information 1989
  • Type of workings Underground
    Overall depth 500M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method ESTIMATE
    Mining Method OTHER FILLED STOPE METHODS
    Percent Waste Rock 20
    Hardness of Rock SOFT NONPLASTIC FISSURED MODERATE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. UNSUPPORTING NO FLOW
    Mine Support Chars. TIMBER W/LAGGING CONCRETE-UNREINFOR
    1st Condition of Workings OPEN
    2nd Condition of Workings FLOODED
    3rd Condition of Workings PART ACCESSIBLE
    Capacity 2000
    Capacity Units MT ORE/DAY
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1975

Reference information

Bibliographic references

  • Reserve-Resource

    AME MINERAL ECONOMICS QUARTERLY MINE ANALYSIS, JUNE 1993,

  • Reserve-Resource

    P. 39, 49.

  • Deposit

    JULY8, 1975: GEOL. DEPT. OF CERRODE PASCO CO., 1971, GEOLOGY

  • Deposit

    CERRO DE PASCO MINERAL DISTRICT: PASCO, PERU, MAPS, PROFILES

  • Deposit

    PURSER, W.F.C., 1971, METAL MINING IN PERU: PRAEGER PUB.,

  • Deposit

    PETERSEN, ULRICH, 1970, REGIONAL GEOLOGY AND MAGOR ORE DEPOS

  • Deposit

    CENTRAL PERU: ECON. GEOL., VOL.60, NO. 3, PP. 407- 476

  • Deposit

    1975 EMJ INT DIRECTORY, MCGRAW HILL PUBLISHERS, PAGE 256

General comments

Subject category Comment text
Deposit ZINC CIRCUIT AT 4800 TON/DAY CAPACITY.

Reporter information

Type Date Name Affiliation Comment
Reporter 26-SEP-94 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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