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El Tesoro

Producer in Chile 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. Ore body information
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Ownership information
  14. Production statistics
  15. Reserves and resources
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10057721
MRDS ID TC03358
Record type Site
Current site name El Tesoro
Alternate or previous names El Tesoro Nuevo, Leonor, Anibal

Geographic coordinates

Geographic coordinates: -69.07119, -22.94253 (WGS84)
Elevation 2340

Site location context

Political divisions (FIPS codes)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country
Chile

Comments on the location information

  • FRUTOS & PINCHEIRA (1986) LOCATION AT 22-54-42S AND 069-03 21W. S OF CALAMA.

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Atacamite Ore
Chrysocolla Ore
Tenorite Ore
Calcite Gangue
Gypsum Gangue
Limonite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Conglomerate
    Stratigraphic age (youngest) Holocene

Nearby scientific data

(1) -69.07119, -22.94253
ListMap

Economic information

Ore body information

  • General form LENTICULAR, IRREGULAR
    Strike N42-60E
    Dip 15-20NW
    Thickness 4M
    Length 600M
    Width 60M

Controls for ore emplacement

  • Paleochannel, Fault

Comments on the geologic information

  • HAS BEEN INTERPRETED AS BEING SOURCED FROM CHUQUICAMATA DEPOSIT AND SUBSEQUENTLY FAULTED. DRILLING TO EAST ENCOUNTERED LOW-GRADE COPPER CONCENTRATIONS BUT APPARENTLY INSUFFICIENT TO QUALIFY AS THE SOURCE OF THIS DEPOSIT.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name El Tesoro

Ownership information

  • Type Owner
    Owner La Compania Minera Cobre Del Norte (Ownership Under Litigation)
  • Type Owner
    Owner Equatorial Gold ( Leoner Deposit)
    First year 1993
  • Type Owner
    Owner Antofagasta Holdings (Luksic Group)
  • Type Owner
    Owner El Tesoro
    First year 1993

Production statistics

  • Year 1959
    Material CU
    Accuracy Accurate
    Description Ap_Grade: ^11.5%
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 12wt-pct
  • Year 1965
    Material CU
    Accuracy Accurate
    Description Ap_Grade: ^7%
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 7wt-pct

Reserves and resources

  • Type In-situ
    Estimate year 1993
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 1.6 wt-pct Copper Major 1993

Comments on the reserve resource information

  • ORE (1) FOR LEONOR. ORE (2) FOR TESORO.

Workings at the site

  • Type of workings Surface/Underground
    Area 15HA
    Overall depth 60M
    Overall length 548.64M
    Overall width 250M

Comments on the workings information

  • MANY WORKING THROUGHOUT AREA; EL TESORO WORKINGS ABANDONED BUT LEONOR MINE ACTIVE.

Reference information

Bibliographic references

  • Deposit

    FRUTOS, J. AND PINCHEIRA, M., 1986, FICHAS METALOGENICAS DE YACIMIENTOS MINERALES METALICOS CHILENOS, IN FRUTOS, J., OYARZUN, J., AND PINCHEIRA, M., EDS., GEOLOGIA Y RECURSOS MINERALES CHILENOS: UNIVERSIDAD DE CONCEPCION, CONCEPCION, P. 841-888.

  • Deposit

    SERMINAS, 1974, INVENTARIO Y EVAKUACION DE LOS RECURSOS MINERALES DE LA PROVINCIA DE ANTOFAGASTA: MINISTERIO MINERIA.

  • Deposit

    WILLIAMS W.C., 1990, FIELD NOTES.

  • Deposit

    BORIC, R., DIAZ, F., AND MAKSAEV, V., 1984, COMPLEMENTO MAPA METALOGENICO, II REGION: GERENCIA DE DESAROLLA, SANTIAGO, (12 VOLS.).

  • Deposit

    LITTLE, M.L., 1993, EXPLORATION REVIEW: SOUTH AMERICA: SEG NEWSLETTER, NO. 15, OCTOBER '93, P. 15.

  • Deposit

    LITTLE, M.L., 1994, EXPLORATION REVIEW: SOUTH AMERICA: SEG NEWSLETTER, NO. 18, JULY '94, P. 25.

  • Other Database

    CIMRI

  • Production

    BORIC, ET AL., 1984.

General comments

Subject category Comment text
Deposit THREE BODIES WITH AVERAGE THICKNESS OF 1.63M, 1.80M, AND 1.94M. MINERALIZATION IN BRECCIATED FAULT ZONES, TOO. <20,000T CU

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1989 Williams, William C. University of Arizona
Updater 01-SEP-1994 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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