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  3. Mineral Resource Data System (MRDS)

Ojos Del Salado

Plant in Atacama, Chile with commodities Copper, Gold, Silver
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Nearby scientific data
  7. Economic information about the deposit and operations
  8. Mining district
  9. Ownership information
  10. Production statistics
  11. Reserves and resources
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10206814
MAS/MILS ID 3370090057
Record type Site
Current site name Ojos Del Salado
Alternate or previous names Lar, Santos Mine, Resguardo Mine, Pedro Aguirre Cerda Concentrator, Alcaparrosa

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -70.25643, -27.49187 (WGS84)
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Atacama(province)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Chile Atacama

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary

Nearby scientific data

Ore Body (1) -70.25643, -27.49187
ListMap

Economic information

Economic information about the deposit and operations

Operation type Underground
Development status Plant
Commodity type Metallic
Significant Yes
Year of first production 1979
Plant type Beneficiation (Mill)
Milling method Flotation

Mining district

District name Atacama District

Ownership information

  • Type Operator
    Owner Cia Minera Ojos Del Salado S. A.
    Home office Chile
    Year 1992
  • Type Owner
    Owner Phelps Dodge Corp.
    Interest 100
    Home office Arizona
    Year 1992

Production statistics

  • Year 1979
    Description Mill Feed @ 0.6% Cu, 2.2 G Au, 6.7 G Ag 180000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Ore Silver Silver 7g/mt
    Trace Ore Gold Gold 2g/mt
    Major Ore Copper Copper 1wt-pct
  • Year 1980
    Description Mill Feed @ 0.5% Cu, 2.11 G Au, 6.0 G Ag 190000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Ore Silver Silver 6g/mt
    Trace Ore Gold Gold 2g/mt
    Major Ore Copper Copper 1wt-pct
  • Year 1981
    Description Mill Feed @ 0.5% Cu, 1.92 G Au, 6.0 G Ag 200000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Ore Silver Silver 6g/mt
    Trace Ore Gold Gold 2g/mt
    Major Ore Copper Copper 1wt-pct
  • Year 1982
    Description Mill Feed - Care & Maintenance 0 Mt Ore
  • Year 1983
    Description Mill Feed @ 0.9% Cu, 2.61 G Au, 9.5 G Ag 250000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Ore Silver Silver 10g/mt
    Trace Ore Gold Gold 3g/mt
    Major Ore Copper Copper 1wt-pct
  • Year 1984
    Description Mill Feed @ 1.0% Cu, 2.11 G Au, 3.8 G Ag 280000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Ore Gold Gold 2g/mt
    Major Ore Copper Copper 1wt-pct
    Trace Ore Silver Silver 4g/mt
  • Year 1985
    Description Mill Feed @ 1.5% Cu, 1.18 G Au, 3.9 G Ag 290000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Ore Silver Silver 4g/mt
    Trace Ore Gold Gold 1g/mt
    Major Ore Copper Copper 2wt-pct
  • Year 1986
    Description Mill Feed @ 1.5% Cu, 1.28 G Au, 3.3 G Ag 300000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Ore Silver Silver 3g/mt
    Trace Ore Gold Gold 1g/mt
    Major Ore Copper Copper 2wt-pct
  • Year 1987
    Description Mill Feed @ 1.61% Cu 320000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 2wt-pct
  • Year 1987
    Description Cont. In Conc. 5000 Mt Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Copper Copper 5000mt
  • Year 1988
    Description Cont. In Conc. 7000 Mt Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Copper Copper 7000mt
  • Year 1988
    Description Mill Feed @ 1.71% Cu 404000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 404000mt 2wt-pct
  • Year 1989
    Description Mill Feed @ 1.93% Cu 643000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 643000mt 2wt-pct
  • Year 1989
    Description Cont. In Conc. 11700 Mt Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Copper Copper 11700mt
  • Year 1990
    Description Cont. In Conc. 12300 Mt Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Copper Copper 12300mt
  • Year 1990
    Description Mill Feed @ 1.86% Cu 718000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 718000mt 2wt-pct
  • Year 1991
    Description Mill Feed @ 2.26% Cu 1051000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 1051000mt 2wt-pct
  • Year 1991
    Description Cont. In Conc. 20000 Mt Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Copper Copper 20000mt
  • Year 1992
    Description Cont. In Conc. 24400 Mt Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Copper Copper 24400mt
  • Year 1992
    Description Mill Feed @ 1.77% Cu 1373000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 1373000mt 2wt-pct
  • Year 1993
    Description Mill Feed @ 1.43% Cu 1192000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 1192000mt 1wt-pct
  • Year 1993
    Description Cont. In Conc. 16700 Mt Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Copper Copper 16700mt

Reserves and resources

  • Type In-situ
    Estimate year 1989
    Indicated 9800000mt ore
    Demonstrated 9800000mt ore
    Total resources 9800000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 1.77 wt-pct Copper Major 1989
  • Type In-situ
    Estimate year 1992
    Indicated 15000000mt ore
    Demonstrated 15000000mt ore
    Total resources 15000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 1.36 wt-pct Copper Major 1992
    Gold Au 0.34 g/mt Gold Minor 1992
  • Type In-situ
    Estimate year 1993
    Demonstrated 13200000mt ore
    Total resources 13200000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 1.31 wt-pct Copper Major 1993
    Gold Au 0.34 g/mt Gold Minor 1993
  • Type In-situ
    Estimate year 1994
    Demonstrated 8000000mt ore
    Total resources 8000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 1.63 wt-pct Copper Major 1994
    Gold Au 0.34 g/mt Gold Minor 1994
  • Type In-situ
    Estimate year 1997
    Demonstrated 12000000mt ore
    Total resources 12000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 44.57 wt-pct Copper Major 1997
  • Type In-situ
    Estimate year 1994
    Demonstrated 8000000mt ore
    Total resources 8000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 1.63 wt-pct Copper Major 1994
    Gold Au 0.34 g/mt Gold Minor 1994

Reference information

Bibliographic references

  • Deposit

    METALLOGENIC MAP OF CHILE, 1990, P.66 (NO.81)

  • Reserve-Resource

    PHELPS DODGE CORP., 1991 10-K REPORT, P.10.

  • Reserve-Resource

    PHELPS DODGE CORP., 1992 10-K REPORT, P.11.

  • Reserve-Resource

    PHELPS DODGE CORP., 1993 10-K REPORT, P.12.

  • Reserve-Resource

    PHELPS DODGE CORP., 1996 ANNUAL REPORT. P.66.

  • Deposit

    ENGINEERING AND MINING JOURNAL, FEBRUARY 1988, P. 11.

  • Deposit

    MINING JOURNAL, PHELPS DODGE NEWS, AUGUST 15, 1988, P. 99.

  • Deposit

    METAL BULLITIN MONTHLY, PHELPS DODGE IN CHILEAN STUDY,

  • Deposit

    AUGUST 1988, P. 83.

  • Deposit

    WORLD MINING EQUIPMENT, ALSO IN CHILE, MARCH 1988, P. 12.

  • Deposit

    PAY DIRT SOUTHWEST EDITION, PHELPS DODGE CONTINUING TESTS AT

  • Deposit

    CHILEAN FIND, JULY 7, 1989, P. 21A.

  • Deposit

    CHILE ECONOMIC REPORT, PHELPS DODGE AIMS TO EXPLOIT NEW

  • Deposit

    COPPER MINE, JULY 1989, P. 6.

  • Deposit

    MINING JOURNAL, CANDELARIA WORK FOR PHELPS DODGE, AUGUST 25,

  • Deposit

    1989, P. 148.

  • Deposit

    CHILE ECONOMIC REPORT, LARGE MINING INVESTMENT PLANNED,

  • Deposit

    SEPTEMBER 1990, PP. 5,6.

  • Deposit

    INDUSTRIAL OUTLOOK REPORT, MINERALS FOR CHILE FOR 1988, P18.

  • Deposit

    MINING JOURNAL, 2/12/88, P.115.

  • Deposit

    METALS WEEK FOCUS, 4/94, P.15.

  • Deposit

    LATIN AMERICAN MINING LETTER,

Reporter information

Type Date Name Affiliation Comment
Reporter 22-JUL-1997 Porter, Kenneth E. U.S. Bureau of Mines

Beyond USGS

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

Operator history (post-MRDS)

MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:

  • Phelps Dodge Corp. — acquired by Subsidiary of Freeport-McMoRan (2007)
    Acquired by Freeport-McMoRan Copper & Gold in 2007 in what was then the largest mining-industry deal ever (~US$26 B).

Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.

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