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Exotica Cu Mine

Producer in Chile 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. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  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 10068474
MRDS ID W001541
Record type Site
Current site name Exotica Cu Mine
Alternate or previous names Exotica, Chuqui Sur, Mina Sur

Geographic coordinates

Geographic coordinates: -68.87451, -22.47254 (WGS84)
Elevation 2575
Relative position 145 KM NE. OF ANTOFOGASTA, 61 KM S OF CHUQUICAMATA

Site location context

Political divisions (FIPS codes)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country
Chile

Commodities

Commodity Importance
Copper Primary
Molybdenum Secondary

Comments on the commodity information

  • ORE CLASSIFIED BY POROSITY AND COLOR. GOOD ORE IS GREEN, DOUBTFUL IS ORANGE, BAD IS YELLOW. CHRYSOCOLLA AND WAD ASSOCIATED WITH FRESH REOCKS AND ARE HIGHER GRADE; ATACAMITE AND PITCH ASSOCIATED WITH CLAY-ALTERED ROCKS.

Materials information

Materials Type of material
Atacamite Ore
Brochantite Ore
Chrysocolla Ore
Malachite Ore
Calcite Gangue
Clay Gangue
Gypsum Gangue
Limonite Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Conglomerate

Nearby scientific data

(1) -68.87451, -22.47254
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description North Trending Folds, Faults And Plutonic Masses
Type of structure Local
Structure description Faults At N50w, >60 And N30e. <60 Fractures At N50-70w

Ore body information

  • General form TABULAR, LENTICULAR
    Strike NE
    Dip 7SE
    Thickness 15M
    Length 6000M
    Width 1200M
    Depth to top 195M
    Depth to bottom 302M

Controls for ore emplacement

  • Paleochannel

Comments on the geologic information

  • VOLCANIC ASH IN CONGLOMERATES IN PLIOCENE

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1967
Discoverer Anaconda And Chile Gov'T
Year of first production 1970

Mining district

District name Chuquicamata

Ownership information

  • Type Owner
    Owner Compania Minera Exotica, S. A.
  • Type Owner
    Owner Since July, 1971 Major Cu Companies Have Been Nationalized By Pres. Allende.
  • Type Operator
    Owner Anaconda Chile Ltd.
    Interest 75
  • Type Operator
    Owner Chile Government
    Interest 25

Comments on the production information

  • ACTUAL PRODUCTION FOR 1970, 1971 LESS THAN PROJECTED FIGURE BECAUSE OF METALLURGICAL DIFFICULTIES

Reserves and resources

  • Type In-situ
    Estimate year 1971
    Total resources 180000000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 1 wt-pct Copper Major 1971

Comments on the reserve resource information

  • 3,242,779 MT OF TAILINGS AT 1.72%.

Workings at the site

  • Type of workings Surface
    Area 195HA
    Overall depth 160M
    Overall length 1371.6M
    Overall width 1300M

Comments on the workings information

  • OVERBURDEN IS TOO TOUGH FOR SCRAPING. STRIPPING DONE BY DRILLING, BLASTING, TRUCK HAULAGE OUT OF PIT. EXPLOITED WITH AN OPEN PIT (1800 M OF DRIFTS).

Comments on development

  • OREBODY LOCATED BY DIAMOND DRILLING. ORE IS TREATED AT CHUQUICAMATA OXIDE PLANT. COMPANIA MINERA EXOTICA DRILLED 135 HOLES (23,000 M) IN 1963; 12 SEISMIC PROFILES ACQUIRED.

Reference information

Bibliographic references

  • Deposit

    BEALL, J. V., 1969; COPPER IN THE ANDES: MINING ENG. V. 21, NO. 11, P. 59-90.

  • Deposit

    MINING JOUR. ANN. REV., 1972, JUNE, P. 306

  • Deposit

    BUREAU DE RECHERCHES GEOLOGIGUES ET MINIERES, 1972, LES DIMENSIONES DES GISEMENTS DE CUIURE DU MONDE: B.R.G.M. MEMOIRE NO. 57, P. 400

  • Deposit

    AMERICAN METAL MARKET, 8/4/77, P. 18, V. 85, NO. 150

  • Deposit

    RUIZ, C. AND PEEBLES, F., 1988, YACIMIENTOS METALIFEROS DE CHILE: SANTIAGO, 334 P.

  • 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

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

  • Deposit

    MORTIMER, B., 1978, EMPLAZAMIENTO DEL YACIMIENTO EXOTICA, CHILE: REV. GEOL. DE CHILE, V. 6, P. 41-51.

  • Deposit

    MINING MAGAZINE, JANUARY, 1990.

  • Other Database

    CIMRI

  • Production

    1) BEALL, 1969, REF. P. 74. 8) MINING JOUR. ANN. REV. REF

  • Reserve-Resource

    AMERICAN METAL MARKET, 8/4/77, P. 18, V. 85, NO. 150; BORIC ET AL., 1984.

General comments

Subject category Comment text
Deposit Discovery Year: 1967 COMPANY CREATED
Deposit DIAMOND DRILLING HAS OUTLINED OREBODY 1770M LONG, 1020M WIDE, OVERBURDEN DEPTH IS 78-147M. DEPOSIT IS SUBHORIZONTAL CONFINED WITHIN A PALEOCHANNEL THAT TRANSPORTED COPPER FORM THE CHUQUI CAMATA PORPHYRY DEPOSIT TO THE NORTH; IT IS THE SOUTHWEST EXTENSION OF THE CHANNEL THAT HAS BEEN AND IS BEING EXPLOITED. MINERALIZATION DISSEMINATED IN CONGLOMERATE AND IN VEINLETS OTHERWISE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1972 Davidson, Claire B. U.S. Geological Survey
Updater 01-SEP-1989 Williams, William C. University of Arizona

Beyond USGS

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

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