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La Granja

Occurrence in Cajamarca, Peru with commodities Copper, Molybdenum
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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. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Economic information about the deposit and operations
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10065205
MRDS ID TC40305
Record type Site
Current site name La Granja

Geographic coordinates

Geographic coordinates: -78.86646, -6.3981 (WGS84)
Elevation 2350
Location accuracy 1000(meters)
Relative position Est, Unknown

Site location context

Political divisions (FIPS codes)

Cajamarca(province)

Peru(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Peru Cajamarca

Comments on the location information

  • 100 KM FROM PACIFIC COAST, NE OF CHICLAYO.

Commodities

Commodity Importance
Copper Primary
Molybdenum Primary

Materials information

Materials Type of material
Bornite Ore
Chalcocite Ore
Chalcopyrite Ore
Covellite Ore
Enargite Ore
Molybdenite Ore
Pyrite Ore
Tennantite Ore
Andalusite Gangue
Chlorite Gangue
Diaspore Gangue
Pyrophyllite Gangue
Sericite Gangue

Alteration

  • (Local) Advanced Argillic (Central Zone) With Andalusite-Quartz, Andalusite-Pyrophyllite-Quartz, Andalusite-Sericite-Quartz, Diaspore-Pyrophyllite Quartz, Sericite-Pyrophyllite-Quartz With Sericite-Clay, Locally Chlorite Around It, Outside A Propylitic Zone With Chlorite, Epidote, Clinozoisite, Calcite, Anhydrite, Clay, Quartz; Local Skarn Of Garnet-Actinolite-Wollastonite-Epidote-Clinozoisite.

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 Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite
    Rock unit name Inca-Chulek-Pariatambo Formation
    Rock description Inca-Chulek-Pariatambo Formation
  • Host or associated Host
    Rock type Metamorphic Rock > Skarn (Tactite)

Nearby scientific data

(1) -78.86646, -6.3981
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Economic information

Geologic structures

Type of structure Local
Structure description Fracture Density Of 0.1 And 2 Per Cm.

Comments on the geologic information

  • HIGHLY ALTERED QUARTZ FELDSPAR PORPHYRY COVERS AN AREA OF 2000 X 2500 M GRADES INTO BIOTITE-GRANODIORITE PORPHYRY ON WESTERN SIDE AND TO HORNBLENDE-GRANODIORITE PORPHYRY ON EASTERN SIDE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No
Discovery year 1970
Discoverer Servicio Geologia Y Mineria De Peru And Institute Of Geologic Sciences Of U.K.

Ownership information

  • Type Operator
    Owner Cambior ).
    First year 1994

Comments on the reserve resource information

  • INITIAL MINERAL INVENTORY

Comments on development

  • 1969-1971 STREAM SEDIMENT SURVEY BY SERVICIO GEOLOGIA Y MINERIA DE PERU AND INSTITUTE OF GEOLOGIC SCIENCES OF UNITED KINGDOM IDENTIFIED THE MAJOR CU ANOMALY BUNDESANSTALT FUR GEOWISSENSCHAFTEN UND ROHSTOFFTE, FEDERAL REPUBLIC OF GERMANY AND PERU COMPLETED FIRST PHASE OF DRILL MID-1981 (24 HOLES). JULY 1994, CAMBIOR BEGAN 30,000 M DRILLING PROGRAM.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit Discovery Year: 1969-1971

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-93 Page, Norman J. U.S. Geological Survey
Updater 02-MAR-95 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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