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Otoca

Producer in Ayacucho, Peru with commodities Silver, Copper, Lead, Gold, 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. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Ownership information
  13. Production statistics
  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 10068905
MRDS ID W002177
Record type Site
Current site name Otoca

Geographic coordinates

Geographic coordinates: -74.68468, -14.48334 (WGS84)
Elevation 2000
Location accuracy 10000(meters)
Relative position THE OTOCA MINE IS 1.5 KM NW OF THE INGENIO-OTOCA ROAD AND ABOUT 2 KM WEST OF OTOCA.

Site location context

Political divisions (FIPS codes)

Ayacucho(province)

Peru(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Peru Ayacucho

Comments on the location information

  • NO. 31 ON METALLOGENIC MAPS OF PERU, 1969, SHOWN AS COPPER ON MET MAP.

Commodities

Commodity Importance
Silver Primary
Copper Primary
Lead Primary
Gold Primary
Zinc Critical Secondary

Materials information

Materials Type of material
Argentite Ore
Bornite Ore
Chalcopyrite Ore
Galena Ore
Pyrite Ore
Sphalerite Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Monzonite
    Stratigraphic age (youngest) Pliocene
  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Rock unit name Yura Group;Huaylillas Volcanics
    Rock description Yura Group;Huaylillas Volcanics

Nearby scientific data

(1) -74.68468, -14.48334
ListMap

Economic information

Ore body information

  • Strike N40W; N70W
    Dip 70NE; ?
    Thickness 3.8M
    Length 500M
    Width 0.3M
    Depth to bottom 30M
  • Dip 70NE; ?

Controls for ore emplacement

  • See Comments

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1677

Ownership information

  • Type Owner
    Owner Victor Velasquez Vizcarra

Production statistics

  • Year 1981
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^2.34% Cu, 0.7 Oz/Tc Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Silver Silver 20g/mt
    Major Ore Copper Copper 2wt-pct
  • Year 1984
    Material ORE(2)
    Accuracy Estimate
    Description Ap_Grade: ^2.55% Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 3wt-pct

Comments on the production information

  • ORE(1) FROM VEINS. ORE(2) FROM OXIDIZED PART. OXIDE PART RUNS 4 OZ/T AU IN CONCENTRATE.1982 PRODUCTION JAN-JUNE.

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Total resources 29200000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 3.28 wt-pct Copper Major 1982
    Gold Au 0.933 g/mt Gold Major 1982
    Silver Ag 46.655 g/mt Silver Major 1982
  • Type In-situ
    Estimate year 1984
    Total resources 1000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 3 g/mt Silver Major 1984

Comments on the reserve resource information

  • METALLOGENIC MAPS OF PERU INDICATE A SMALL DEPOSIT.

Workings at the site

  • Type of workings Underground
    Length 270M
    Overall depth 116M

Comments on the workings information

  • MINING OXIDE ZONE IN 1984

Reference information

Bibliographic references

  • Deposit

    SIMONS, FRANK, 1960, UNPUBLISHED REPORT, P. 568

  • Deposit

    PERU-MAPA METALOGENETICO, 1969, AND, GUIA PARA EL MAPA METALOGENETICO DEL PERU, SOCIEDAD NACIONAL DE MINERIA Y PETROLEO, LIMA, PERU, NOV. 1969

  • Deposit

    PAGE, N.J, 1984, SITE VISIT

  • Deposit

    DIAZ AGUILAR, J., AND GONZALES TORRES, A., 1981, MINA "OTOCA"; BANCO MINERO DEL PERU; COD B2677.

  • Deposit

    RUIZ SILVA, R., 1981, MINA "OTOCA"; BANCO MINERO DEL PERU; B6886.

  • Deposit

    VALENCIA, R. AND GONZALES T. A., 1982, MINA "OTOCA"; BANCO MINERO DEL PERU; B4163, B6191, B6882.

  • Deposit

    FLORES, T.R., 1982, MINA "OTOCA"; BANCO MINERO DEL PERU; COD.B4508.

  • Deposit

    CALLER F.A., 1982, MINA "OTOCA"; BANCO MINERO DEL PERU; COD.B4509.

  • Deposit

    1960 COMPILE FRANK SIMONS, UNPUB. REP

  • Production

    F. SIMONS, 1960, UNPUB. REP.; PAGE (1984); BANCO MINERO DEL PERU (1981, 1982).

  • Reserve-Resource

    METALLOGENIC MAPS OF PERU. 1969, 1972. BANCO MINERO DEL PERU (1981, 1982).

General comments

Subject category Comment text
Deposit Discovery Year: WORKED DURING COLONIAL PERIOD AND PERHAPS BEFORE
Deposit SEE RECORD NUMBER AYA0016

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-73 Shaffer, Glenn L. U.S. Geological Survey
Updater 01-JUL-94 Page, Norman J. U.S. Geological Survey

Beyond USGS

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

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