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San Jose Copper Belt 27

Past Producer in Arequipa, Peru with commodity 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 10068921
MRDS ID W002196
Record type Site
Current site name San Jose Copper Belt 27

Geographic coordinates

Geographic coordinates: -71.43292, -16.73103 (WGS84)
Elevation 2700
Relative position UPPER PART OF QUEBRADA SAN JOSE ABOUT 40 KM SSE OF AREQUIPA

Site location context

Political divisions (FIPS codes)

Arequipa(province)

Peru(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Peru Arequipa

Comments on the location information

  • NO. 27 ON METALLOGENIC MAPS OF PERU, 1969

Commodities

Commodity Importance
Copper Primary

Comments on the commodity information

  • GANGUE MINERAL IS WALLROCK

Materials information

Materials Type of material
Chalcocite Ore
Chalcopyrite Ore

Analytical data

Result CHALCOCITE ZONE (20-30 M THICK) CONTAINS 0.4-0.6 PERCENT COPPER, PRIMARY DISSEMINATED SULFIDE ORE IN QUARTZ MONZONITE AVERAGES LESS THAN .25% COPPER IN DRILL HOLES TO DEPTHS OF 150

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Yura Formation, Quartzite
    Rock description Yura Formation, Quartzite

Nearby scientific data

(1) -71.43292, -16.73103
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Area Underlain Mainly By A Long Roof Pendant Or Tongue Of Quartzite Of The Yura Formation Which. In General Strikes Nw. The Quartzite Is Fractured And Gently Folded Along Axes That Plunge Flatly Se, Its Structure Seems To Be Broadly Anticlinal. Quartzite Is Intruded By Quartz Monzonite That Crops Out As Two Stock-Like Bodies And An Irregular Dike At Least 2 Km Long. The Stocks Are Elongated Approx. Parallel To Fold Axes In The Quartzite.

Ore body information

  • General form VEINLETS AND STRINGERS OF CHRYSOCOLLA AND BROCHANTITE IN FRACTURED QUARTZITE, DISSEMINATED CHALCOCITE AND CHALCOPYRITE IN QUARTZ MONZONITE
    Depth to bottom 150M

Comments on the geologic information

  • DIORITE INTRUSION INTRUDED BY FELSITIC QUARTZ LATITE OR DACITE, POST MINERAL BASALT OR ANDESITE PLUG, POST MINERAL ANDESITE DIKE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1875
Production years LATE 19TH CENTURY

Ownership information

  • Type Owner
    Owner Cerro De Pasco Corp.; Arequipa Resources )
    First year 1994

Comments on the production information

  • HIGH GRADE COPPER ORE IS REPORTED TO HAVE BEEN EXPLOITED DURING THE LATE 19TH CENTURY BY CHILEAN INTEREST, NO FURTHER ACTIVITY IS KNOWN

Comments on the reserve resource information

  • INSUFFICIENT DATA 3/74 TO MAKE ESTIMATE. METALLOGENIC MAPS OF PERU INDICATE A DEPOSIT CONTAINING BETWEEN 100,000 AND ONE MILLION TONS OF ORE.

Comments on the workings information

  • AREA WAS EXPLORED BY THE CERRO DE PASCO CORP. IN 1953-1954 AND SIX DIAMOND DRILL HOLES WERE PUT DOWN TO DEPTHS OF FROM 134 M TO 233 M. IN ADDITION, A VERY THOROUGH PROGRAM OF GEOCHEMICAL SAMPLING WAS CARRIED OUT. ORE GRADES IN THE AREAS DRILLED APPARENTLY PROVED TO BE TOO LOW FOR PROFITABLE OPERATIONS.

Reference information

Bibliographic references

  • Deposit

    SIMONS, FRANK, 1960, UNPUBLISHED REPORT, P. 934

  • Deposit

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

  • Deposit

    1960 COMPILE FRANK SIMONS, UNPUB. REP

  • Production

    F. SIMONS, 1960, UNPUB. REP.

  • Reserve-Resource

    METALLOGENIC MAPS OF PERU. 1969, 1972

General comments

Subject category Comment text
Deposit Discovery Year: LATE 19TH CENTURY

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1973 Shaffer, Glenn L. U.S. Geological Survey
Updater 02-MAY-1995 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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