1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Yanacocha

Producer in Cajamarca, Peru with commodity Gold
Map
XML
JSON
KML
B
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Ownership information
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10065240
MRDS ID TC40348
Record type Site
Current site name Yanacocha
Alternate or previous names Maqui Maqui, Carachugo Deposits, Gold Anomaly Areas: Maqui Maqui Norte, Maqui Maqui Sur,, Yana Cocha Norte, Yanacocha Sur, Yanacocha Oeste, Encajon,, Chaupilocha, Carachugo Norte, Carachugo Sur, Carachugo Este,, Chaquicocha, San Jose Norte, San Jose Sur, Cerro Quilish, Puca Rumi,, Cerro Negro Oeste, Cerro Negro Este.

Geographic coordinates

Geographic coordinates: -78.51534, -6.90114 (WGS84)
Relative position 15 MILES NW OF CAJAMARCA, 500 KM NE OF LIMA, 10 KM FROM MICHIQUILLAY PORPHYRY COPPER DEPOSIT.

Site location context

Political divisions (FIPS codes)

Cajamarca(province)

Peru(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Peru Cajamarca

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Alunite Gangue

Alteration

  • (Local) Silicification

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt

Nearby scientific data

(1) -78.51534, -6.90114
ListMap

Economic information

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1859
Year of first production 1993

Ownership information

  • Type Owner-Operator
    Owner Newmont Second Capital
    Interest 38
    First year 1984
  • Type Owner-Operator
    Owner Companhia Minera Condesa
    Interest 32.3
    First year 1984
  • Type Owner-Operator
    Owner Mine Or
    Interest 24.7
    First year 1984
  • Type Owner-Operator
    Owner Ifc
    Interest 32.3
    First year 1984

Comments on the production information

  • EST ANNUAL CAPACITY IS 7.15 METRIC TONS OF AU (230,000 OZ), AND SCHEDULE PRODUCTION FOR 1993 OF 3.11 METRIC TONS OF AU (100,000 OZ). PRODUCTION COMES FROM 3 DEPOSITS. ACTIVE DEVELOPED PRODUCER. CARACHUGO OPEN PIT STRIPPING RATIO 1.0 TO 0.6 ORE TO WATER. MAQUI MAQUI 1 TO 0.3. USE MERRILL CROWE PROCESS.

Comments on the reserve resource information

  • PROVEN AND PROBABLE AU(1); AU (2) GOLD RESERVES; AU (3) GOLD IN NON-RESERVE MINERALIZATION. CARACHUGA SUR DEPOSIT HAS A RESOURCE OF 500,000 OZ AU (1993). ORE (1) CARACHUGO RESERVES, ORE (2) MAQUI MAQUI RESERVES.

Comments on the workings information

  • 3 OPEN PITS IN OXIDIZED ORE (1993). MILL: HEAP-LEACH.

Comments on development

  • MINED FOR GOLD IN SPANISH COLONIAL TIMES. $37,083,000 WAS USED TO BRING CARACHUGO INTO PRODUCTION AND $40,230,000 WILL BE SPENT TO BRING MAQUI MAQUI INTO PRODUCTION.

Reference information

Bibliographic references

  • Deposit

    DEPARTMENT OF STATE CABLE, GOLD RUSH IN PERU, APRIL 1993.

  • Deposit

    ANON., 1993A, MUNDO MINERO: LIMA, 15 OCTOBER-15 NOVEMBER, 1993.

  • Deposit

    ANON., 1993B., YANACOCHA HITS TARGET FOR NEWMONT: MINING JOURNAL LONDON, NOV. 5, 1993, V. 321, NO. 8249, P. 310.

  • Deposit

    LITTLE, M.L., 1993, EXPLORATION REVIEW-SOUTH AMERICA: SEG NEWSLETTER, OCTOBER 1993, NO. 15, P. 16.

  • Deposit

    LITTLE, M.L., 1993, EXPLORATION REVIEW-SOUTH AMERICA: SEG NEWSLETTER, JANUARY 1994, NO. 16, P. 18.

  • Deposit

    LITTLE, M.L., 1994, EXPLORATION REVIEW: SOUTH AMERICA: SEG NEWSLETTER, NO. 18, JULY '94, P. 25.

  • Other Database

    CIMRI

  • Production

    DEPARTMENT OF STATE CABLE (4/93).

General comments

Subject category Comment text
Deposit Discovery Year: 1859, REDISCOVERED IN 1980'S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1993 Page, Norman J. U.S. Geological Survey
Updater 01-DEC-1994 Page, Norman J. 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