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  3. Mineral Resource Data System (MRDS)

La Africana Cu Mine

Producer in Region Metropolitana, Chile with commodities Copper, Gold
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Host and associated rocks
  7. Nearby scientific data
  8. Geologic structures
  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. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10068476
MRDS ID W001542
Record type Site
Current site name La Africana Cu Mine

Geographic coordinates

Geographic coordinates: -70.82285, -33.45914 (WGS84)
Elevation 900
Relative position 24 KM W. OF SANTIAGO

Site location context

Political divisions (FIPS codes)

Region Metropolitana(province)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Chile Region Metropolitana

Commodities

Commodity Importance
Copper Primary
Gold Secondary

Analytical data

Result CU IS 6-12% IN ZONE OF SECONDARY ENRICHMENT

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -70.82285, -33.45914
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Economic information

Geologic structures

Type of structure Regional
Structure description North-Trending Folds, Faults And Plutonic Masses

Ore body information

  • General form LENS
    Strike NORTH
    Dip 70-85 DEG W
    Length 700M
    Depth to top 300M

Controls for ore emplacement

  • Fault Fissure 3 To 18 M Wide

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Medium
Significant No
Year of first production 1957

Ownership information

  • Type Owner-Operator
    Owner Sociedad Minera Pudahuel Ltda. C. P. A.

Production statistics

  • Year 1969
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^3.5 % Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Copper Copper 4wt-pct
  • Year 1969
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^3.5 % Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Copper Copper 4wt-pct

Comments on the production information

  • THE MINE PRODUCES BETWEEN 150,000 AND 300,000 SHORT TONS ANNUALLY

Reserves and resources

  • Type In-situ
    Estimate year 1972
    Total resources 1000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 1.8 wt-pct Copper Major 1972

Comments on the reserve resource information

  • EST. G. GOUDARZI 3/73 TO HAVE POTENTIAL RESOURCES FOR ADDITIONAL LIFE OF 10 YEARS AT 150,000 MET TONS ANNUAL PRODUCTION.
  • EST. G. GOUDARZI 3/73.
  • USBM MINERAL YEAR BOOK 1969-P-191 REPORTS THAT RESERVES ARE NEARLY DEPLETED. COMPANY DEVELOPING LO AGUIRE DEPOSIT

Comments on development

  • SOCIEDAD MINERA PUDAHUEL LTDA. C.P.A. IS A 100 % PRIVATE COMPANY.

Reference information

Bibliographic references

  • Deposit

    RUIZ, F., CARLOS, 1965, GEOLGIA Y YACIMIENTOS METALIFEROS DE CHILE: INST. INV. GEOL. CHILE, TABLE 1, (SPANISH)

  • Deposit

    MCMAHON, A. D., 1965, COPPER A MATERIALS SURVEY: U. S. BUREAU OF MINES INF. CIRC. 8225 P. 61

  • Deposit

    THOMAS, HERBERT, 1957, YACIMIENTOS METALIFEROS DE LA CORDILLERA DE LA COSTA EN LA REGION COMPRENDIDA ENTRE EL VALLE DE LA LIGUA Y LA CUESTA DE BARRIGA: INST. INV. GEOL. CHILE, UNPUB. INF. (SPANISH).

  • Deposit

    1957 COMPILE INSTITUTO DE INVESTIGACIONES GEOLOGICAS CHIL

  • Production

    MINING MAG. SEPT. 1969, VOL. 121, NO. 3 P-241

General comments

Subject category Comment text
Deposit OXIDIZED-LEACHED ZONE IS 48M IN DEPTH, BELOW IS A ZONE OF SECONDARY ENRICHMENT 9 TO 30M IN DEPTH

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1972 Davidson, Claire B. (Theune, C. T.) U.S. Geological Survey

Beyond USGS

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

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