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El Toro

Past Producer in La Libertad, Peru with commodities Gold, Silver, Copper
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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. Geologic structures
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Ownership information
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10068897
MRDS ID W002169
Record type Site
Current site name El Toro
Alternate or previous names Veins: Limena, Alianza, San Jose, Amelia, Etelvina, Negra, Alta Gracia

Geographic coordinates

Geographic coordinates: -78.04477, -7.81054 (WGS84)
Elevation 3400
Location accuracy 10000(meters)
Relative position 4 KM ESE OF HUAMACHUCO, Est, +/- 2 Min.

Site location context

Political divisions (FIPS codes)

La Libertad(province)

Peru(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Peru La Libertad

Comments on the location information

  • NO. 50 ON METALLOGENIC MAPS OF PERU, 1969. ON CERRO EL TORO ON WEST FLANK.

Commodities

Commodity Importance
Gold Primary
Silver Primary
Copper Primary

Materials information

Materials Type of material
Enargite Ore
Tetrahedrite Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Chimu Formation;
    Rock description Chimu Formation;
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -78.04477, -7.81054
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description The Country Rock Is Cretaceous Sandstone (Chimu Formation?) And Black Shale That Strike Nw And Dip Gently Sw. In The Eastern Part Of Cerro El Toro These Rocks Are Intruded By Andesite. In The Sandstone They Strike East, Dip 60 Deg-90 Deg S., Are 30-150 Cm Wide, And Are Oxidized To Considerable Depth. They Contain Auriferous Pyrite At Depth. Veins In Andesite Have Apparently Random Attitudes And Are Oxidized Only To Shallow Depths. They Contain Pyrite, Tetrahedrite, And Enargite.

Ore body information

  • Name LIMENA VEIN
    Strike N20E}}}}NW}
    Dip 70SE}VERTICAL}70 S}80 S}60 SW}60 S
    Thickness 1M
    Length 1000M
  • Name ALIANZA VEIN
    Strike N20E}}}}NW}
    Dip 70SE}VERTICAL}70 S}80 S}60 SW}60 S
    Thickness 0.4M
    Length 600M
  • Name SAN JOSE VEIN
    Strike N20E}}}}NW}
    Dip 70SE}VERTICAL}70 S}80 S}60 SW}60 S
    Thickness 0.4M
  • Name AMELIA VEIN
    Strike N20E}}}}NW}
    Dip 70SE}VERTICAL}70 S}80 S}60 SW}60 S
    Thickness 0.3M
  • Name ETELVINA
    Strike N20E}}}}NW}
    Dip 70SE}VERTICAL}70 S}80 S}60 SW}60 S
    Thickness 1M
  • Name ALTA GRACIA
    Strike N20E}}}}NW}
    Dip 70SE}VERTICAL}70 S}80 S}60 SW}60 S
    Thickness 1M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No
Year of first production 1845

Ownership information

  • Type Owner-Operator
    Owner Empresa Minera San Antonio S. R. L.

Comments on the production information

  • EXTRACT ABOUT 100 MT/MONTH ORE WHICH YIELDS ABOUT 30 MT/ MONTH OF HIGH GRADED ORE.

Comments on the reserve resource information

  • INSUFFICIENT DATA 3/74 TO MAKE ESTIMATE. METALLOGENIC MAPS OF PERU INDICATE A SMALL DEPOSIT OF LITTLE OR NO ECONOMIC SIGNIFICANCE.
  • PROVEN AND PROBABLE RESERVES.

Comments on the workings information

  • OVER 300 OPENINGS IN 8 VEINS ON WEST FLANK OF CERRO TORO.

Reference information

Bibliographic references

  • Deposit

    SIMONS, FRANK, 1960, UNPUBLISHED REPORT, P. 447

  • Deposit

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

  • Deposit

    MALAGA, SANTOLALLA, FERMIN, 1907, MONOGRAFIA MINERA DE LA PROVINCIA DE HUAMACHUCO: CUERPO DE ING. DE MINAS DEL PERU BOL., NO. 51, P. 32-40

  • Deposit

    FLORES TORRES, R.; 1990. INFORME TECHNICO MINA EL TORO: INFORME DEL BANCO MINERO DEL PERU, B7390.

  • Deposit

    1960 COMPILE FRANK SIMONS, UNPUB. REP

  • Other Database

    CIMRI

  • Production

    F. SIMONS, 1960, UNPUB. REP. FLORES TORRES (1990).

  • Reserve-Resource

    METALLOGENIC MAPS OF PERU. 1969, 1972

General comments

Subject category Comment text
Deposit ORE BODY 0: IN ANDESITE; COMPOSED OF TETRAHEDRITE, ENARGITE, PYRITE AND HAD 45-120 G/T AU AND 1.5 KG/T AG OXIDIZED PORTS AS HIGH AS 16 KG/T AG. ORE BODY 1: IN SANDSTONE, VEINLETS OF OXIDIZED MATERIAL 30 TO 230 G/T AU. ORE BODY 2: IN SANDSTONE, UP TO 2.5 KG/T AG. ORE BODY 3: IN SANDSTONE, UP TO 417 G/T AU, 1.25 KG/T AG. ORE BODY 4: 10 G/T AU OVER 10-25 CM WIDTH. ORE BODY 5: NEAR BASE OF CERRO EL TORO.
Deposit SEE RECORD NUMBER LLB0121.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-73 Shaffer, Glenn L. U.S. Geological Survey
Updater 01-JUN-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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