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Toro Mocho

Producer in Peru with commodities Copper, Molybdenum, Silver
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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. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Ownership information
  12. Reserves and resources
  13. Bibliographic references

Geologic information

Identification information

Deposit ID 10400172
Record type Model Type
Current site name Toro Mocho
Alternate or previous names Toromocho

Geographic coordinates

Geographic coordinates: 76.13372, 11.60044 (WGS84)

Site location context

Political divisions (FIPS codes)

Peru(country)

South America(continent)

Land(continent)

Geographic areas

Country
Peru

Comments on the location information

  • Assoc deposits less 5km: 18b, 22c
  • assoc deposits less 10km: 17

Commodities

Commodity Importance
Copper Primary
Molybdenum Primary
Silver Primary

Materials information

Materials Type of material
Actinolite Ore
Biotite Ore
Bismuthinite Ore
Calcite Ore
Chalcocite Ore
Chalcopyrite Ore
Chlorite Ore
Covellite Ore
Cubanite Ore
Diopside Ore
Enargite Ore
Galena Ore
Garnet Ore
Magnetite Ore
Pyrite Ore
Serpentine Ore
Sphalerite Ore
Talc Ore
Tennantite Ore
Tetrahedrite Ore
Tremolite Ore
Biotite Gangue
Quartz Gangue
Pyrite Gangue
Sericite Gangue

Comments on the analytical data

  • Some reported contents: 0.246 oz/t Ag, 0.00007 oz/t Au, 0.031% Zn; 0.0129% Mo; 0.0047% B 0.0238% w; 0.0447% aS; 0.0082% Sb

Mineral occurrence model information

Model code 53
USGS model code 17
Deposit model name Porphyry Cu
Mark3 model number 4

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate)
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite
    Rock type qualifier porphyry
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
  • Host or associated Host
    Rock type Metamorphic Rock > Phyllite
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granodiorite
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite

Nearby scientific data

(1) 76.13372, 11.60044
ListMap

Economic information

Comments on the geologic information

  • The deposit is a complex, mineralized assemblage of veins, veinlets, stockworks, mantos and disseminatedsulphides of the general porphyry copper type. It shows well developed concentric silicate alteration and metal zoning, with a central potassic zone with secondary biotite, quartz, and pyrite, surrounded by a phyllic zone with quartz and sericite. It is rougly vertical and cylindrical, but with a complex detailed shape. A large breccia pipe developed contemporaneously with the copper mineralization, overprinting some of the mineral relationships. Chalcocite distribution is not typical for a porphyry copper deposit, as primary chalcopyrite remains within the chalcicite blanket to a depth of at least 250 m.

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Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant Yes
Discovery year 1928

Ownership information

  • Type Owner-Operator
    Owner Peru Copper, Inc.
    Home office Suite 920, 475 West Georgia St.\nVancouver, BC V6B 4Mp

Reserves and resources

  • Type In-situ
    Estimate year 1928
    Total resources 1180
    Commodity Subtype Grade units Group Importance Year
    Silver 9.5 g/mt Silver Major 1928
    Molybdenum 0.02 wt-pct Molybdenum Major 1928
    Copper 0.51 g/mt Copper Major 1928

Reference information

Bibliographic references

Comments on the references

  • Angulo, A.A., 2000, Yacimiento Toromocho: Primer volumen de monografias de yacimentos minerales Peruanos. Historia, exploration y geologia: Lima, Instituto de Ingenieros de Minas del Peru, p. 205-225.
  • Long, K.R., 1995, Production and reserves of Cordilleran (Alaska to Chile) porphyry copper deposits, in Pierce, F.W., and Bolm, J.G. eds., Porphyry copper deposits of the American Cordillera: Tucson, Arizona Geological Society Digest 20, p. 35-68
  • Unpublished database, Gov. Peru
  • Sillitoe, R.H., 1988, Epochs of intrusion-related copper mineralization in the Andes: Journal of South American Earth Sciences, v. 1, no. 1, p. 89-107

Beyond USGS

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

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