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Andacollo Copper

Plant in Coquimbo, Chile with commodities Copper, Gold, Molybdenum, 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. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Reserves and resources
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10231318
MRDS ID D000515
MAS/MILS ID 3370210001
Record type Site
Current site name Andacollo Copper
Alternate or previous names Andacollo

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -71.10124, -30.24416 (WGS84)
Elevation 1000
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Coquimbo(province)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Chile Coquimbo

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Molybdenum Secondary
Silver Secondary

Materials information

Materials Type of material
Biotite Unknown
Chalcocite Unknown
Chalcopyrite Unknown
Feldspar Unknown
Gold Unknown
Magnetite Unknown
Molybdenite Unknown
Pyrite Unknown
Quartz Unknown

Nearby scientific data

Ore Body (1) -71.10124, -30.24416
ListMap

Economic information

Ore body information

  • Thickness 25M
    Length 1200M
    Width 1200M
    Area 800HA
    Depth to top 30M
    Field Value
    Type of Orebody #1 STOCKWORK
    Shape of Orebody #1 OTHER
    Type of Orebody #2 BRECCIA FILL
    Primary mode of Origin HYDROTHERMAL
    Secondary mode of Origin OXIDATION
    Primary Ore Control FAULTING
    Secondary Ore Control IGNEOUS
    Degree of Wallrock Alter. INTENSE
    Type of Wallrock Alter. #1 POTASSIC
    Type of Wallrock Alter. #2 SERICITIC
    Type of Wallrock Alter. #3 PROPYLITIC
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 12
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 800
    Date of Last Modification 800619

Comments on the geologic information

  • THE SUPERGENE ORE ZONE IS IN THE SHAPE OF A DISC 1,200 M IN DIAMETER AND 25 M THICK. UNDERNEATH THE SUPERGENE ZONE IS A POTASSIC FELDSPAR ZONE 900 M X 600 M WITH A THICKNESS OF A FEW METERS AT THE PERIPHERY & 150 M AT CENTER . OVERALL, THE DEPOSIT IS IN THE SHAPE OF AN INVERTED CONE 200 M HIGH (DEPTH) AND 1,200 M IN DIA. (AT SURFACE).

Economic information about the deposit and operations

Operation type Surface
Development status Plant
Commodity type Metallic
Significant Yes
Mining method Open Pit
Year of first production 1996
Plant type Beneficiation (Mill)
Plant subcategory Flotation
Milling method Leach-Solvent-Extract-Electrowin

Mining district

District name Andacollo District

Mineral rights holdings

Type of mineral rights Federal Lease

Land status

Ownership category Unknown

Ownership information

  • Type Operator
    Owner Compania Mineria Carmen De Andacollo
    Home office Chile
    Year 1995
  • Type Owner-Operator
    Owner Canada Tungsten Inc.
    Interest 70
    Home office Canada
    Year 1995
    First year 1994
  • Type Owner
    Owner Compania Minera Del Pacifico
    Interest 30
    Home office Chile
    Year 1995
    First year 1994

Comments on the ownership information

  • PLACER DOME ABANDONED ITS EXPLORATION PROGRAM DUE TO LOW COPPER GRADE RESULTS (IE .45% CU). CANADA TUNGSTEN HAS PICKED UP THE OPTION AND WILL CONDUCT A 15 MONTH FEASIBILITY STUDY TO EARN A 70% INTEREST. EMPRESA NACIONAL DE MINERIA (ENAMI) RETAINS THE EQUIVALENT OF A 10% CARRIED INTEREST AFTER PAYBACK.

Reserves and resources

  • Type In-situ
    Estimate year 1993
    Indicated 39000000mt ore
    Demonstrated 39000000mt ore
    Total resources 39000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.94 wt-pct Copper Major 1993
  • Type In-situ
    Estimate year 1993
    Indicated 280000000mt ore
    Demonstrated 280000000mt ore
    Total resources 280000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.165 g/mt Gold Minor 1993
    Copper Cu 0.57 wt-pct Copper Major 1993
  • Type In-situ
    Estimate year 1991
    Indicated 169000000mt ore
    Demonstrated 169000000mt ore
    Total resources 169000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.25 g/mt Gold Minor 1991
    Molybdenum Mo 0.015 wt-pct Molybdenum Minor 1991
    Copper Cu 0.55 wt-pct Copper Major 1991
  • Type In-situ
    Estimate year 1991
    Indicated 80000000mt ore
    Demonstrated 80000000mt ore
    Total resources 80000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.25 g/mt Gold Minor 1991
    Molybdenum Mo 0.015 wt-pct Molybdenum Minor 1991
    Copper Cu 0.78 wt-pct Copper Major 1991
  • Type In-situ
    Estimate year 1991
    Total resources 535000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.45 wt-pct Copper Major 1991
  • Type In-situ
    Estimate year 1994
    Demonstrated 34000000mt ore
    Total resources 34000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.88 wt-pct Copper Major 1994
  • Type In-situ
    Estimate year 1995
    Demonstrated 34600000mt ore
    Total resources 34600000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.87 wt-pct Copper Major 1995
  • Type In-situ
    Estimate year 1995
    Demonstrated 34600000mt ore
    Total resources 34600000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 0.87 wt-pct Copper Major 1995

Comments on the reserve resource information

  • RESERVE SOURCE: METAL BULLETIN, 8/26/93, P.5. PLACER DOME INC., NEWS RELEASE, 7/18/91. SUPERGENE ZONE: 80,000,000 @ .78% CU, .25 G AU, .01% MO PRIMARY ZONE : 169,000,000,@ .54% CU, .25 G AU, .01% MO TOTAL GEOLOGICAL: 249,000,000 @ .62% CU, .25 G AU, .01% MO MINEABLE: 204,000,000 @ .64% CU, .25 G AU, .01% MO FEASIBILITY STUDY TO BE COMPLETED BY OCT. 1994; START BY MID 96 PHELPS DODGE HAS WITHDRAWN FROM THE ANDACOLLO PROJECT CANADA TUNGSTEN PICKED UP OPTION FOR 70% BY COMPLETING 15 MONTH FEASIBILITY STUDY. PLANS CALL FOR A LOW COST, OPEN PIT HEAP LEACH OPERATION WITH A SX-EW FACILITY TO PRODUCE 37 MILLION LB CATHODE. CAPITAL COST EST. AT $50 MILLION AND OP COST AT $0.50/LB CU.

Workings at the site

  • Type of workings Surface
    Area 700HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method BENCH (BERM)
    Percent Waste Rock 51.7
    Avg. Overburden Thickness 30
    Primary Material Cover HARDPAN
    Percentage 60
    Secondary Material Cover SAND, GRAVEL
    Percentage 40
    Hardness of Ore HARD ROCKS
    Avg. Bench Height (meters) 15
    Max. Pit Slope (degrees) 45
    Capacity 40000
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 14600
    Units of Production $/MT ORE
    Operating Days per Year 365
    Operating Shifts per Day 3
    Year of Information 1986

Reference information

Bibliographic references

  • Reserve-Resource

    METALS WEEK; PLACER PULLS OUT OF ANDACOLLO, 7/27/92, P. 2.

  • Reserve-Resource

    PLACER DOME INC., NEWS RELEASE, 7/18/91.

  • Reserve-Resource

    METAL BULLETIN, 8/26/93, P.5.

  • Reserve-Resource

    NORTHERN MINER, 11/1/93, P.3.

  • Reserve-Resource

    AMERICAN METAL MARKET, 8/29/94, P.5.

  • Reserve-Resource

    AMERICAN METAL MARKET, 12/15/94, P.20.

  • Reserve-Resource

    LATIN AMERICAN MINING LETTER, V 13/N 20, 12/16/94, P.4,5.

  • Reserve-Resource

    CRU INTERNATIONAL, COPPER STUDIES, V 23/N 6, 12/95, P.11,12.

  • Deposit

    LOWELL, D., THREE NEW PORPHYRY COPPER DEPOSITS FOR CHILE:

  • Deposit

    MINING ENGINEERING, VOL. 26, NO. 11, NOVEMBER 1974, P. 22-

  • Deposit

    28.

  • Deposit

    MINING JOURNAL, CHILE - UNEXPLOITED COPPER DEPOSITS: 182:

  • Deposit

    214, 1974.

  • Deposit

    THE WESTERN HEMISPHERE: NEW YORK, THE AMERICAN INSTITUTE

  • Deposit

    OF MINING, METALLURGICAL, AND PETROLEUM ENGINEERS, INC.,

  • Deposit

    1978, P. 6, 8, 15.

  • Deposit

    MINING MAGAZINE, CHILE: V. 140, NO. 1, 1979, P. 66.

  • Deposit

    WORLD MINING, COPPER: A FUTURE OF AMPLE AND SECURE SUPPLY:

  • Deposit

    V. 30, NO. 10, 1977, P. 109-111.

  • Deposit

    MINING JOURNAL, CHILE: COPPER EXPANSION PLANS: V. 289, NO.

  • Deposit

    7408, 1977, P. 120.

  • Deposit

    ENGINEERING AND MINING JOURNAL, THIS MONTH IN MINING: NEW

  • Deposit

    AND EXPANDING MINES AND PLANTS: V. 180, NO. 1, 1979,

  • Deposit

    P. 49, 98.

  • Deposit

    WORLD MINING, CHILE: NORANDA AND GOVERNMENT PLAN PRODUCTION

  • Deposit

    AT ANDACOLLA PORPHYRY CU: V. 29, NO. 2, 1976, P. 63.

  • Deposit

    MINING JOURNAL, ANDACOLLO DEVELOPMENT?: V. 291, NO. 7477,

  • Deposit

    1978, P. 455.

  • Deposit

    RIO TINTO ZINC MINING COST ANALYSIS SYSTEM, PERFORMANCE

  • Deposit

    ANALYSIS: JUNE 10, 1975, P. 114.

  • Deposit

    ENGINEERING AND MINING JOURNAL, COPPER: SOUTH AMERICA AND

  • Deposit

    CARIBBEAN: V. 179, NO. 1, 1978, P. 70.

  • Deposit

    MINING MAGAZINE, NEW COPPER MINE PLANNED FOR CHILE: V. 134,

  • Deposit

    NO. 2, 1976, P. 75, 77.

  • Deposit

    MINING MAGAZINE, CHILE COPPER OUTPUT MAY EXCEED TARGET: V.

  • Deposit

    131, NO. 4, 1974, P. 257.

  • Deposit

    MINING JOURNAL, ANDACOLLO FOR NORANDA: V. 286, NO. 7324,

  • Deposit

    1976, P.

  • Deposit

    MINING INTERNATIONAL YEARBOOK: LONDON, THE FINANCIAL TIMES

  • Deposit

    LIMITED, 1978, P. 419.

  • Deposit

    WORLD MINING, WHAT'S GOING ON IN WORLD MINING: CHILE: PRI-

  • Deposit

    VATE OWNERSHIP OF MINES ENCOURAGED: V. 32, NO. 4, 1979,

  • Deposit

    P. 93.

  • Deposit

    DMA SERIES 1501, MAP,, SHEET SH 19-9, SCALE 1:250,000.

  • Deposit

    ENGINEERING AND MINING JOURNAL, ANDACOLLO:MIXED COMPANY

  • Deposit

    PLANS A NEW PROJECT, NOV. 1979, P.P. 106-111.

  • Deposit

    ENGINEERING AND MINING JOURNAL, NORANDA WEIGHS ANDACOLLO

  • Deposit

    JOINT VENTURE IN CHILE, AUGUST, 1979, P.39.

  • Deposit

    SUTULOV, A., ED., CHILEAN MOLYBDENUM RESOURCES, IN INTL.

  • Deposit

    MOLYBDENUM ENCYCLOPEDIA, 1978.

  • Deposit

    EL YACIMENTO COBRE PORFIDICO'ANDACOLLO',IN REVISTA GEO-

  • Deposit

    LOGICA DE CHILE, NO.2, 1975, PP. 55-56.

  • Deposit

    METALS SOURCEBOOK, DEC.23, 1974.

  • Deposit

    METALS SOURCEBOOK, JULY 17, 1973, ITEM A3249.

  • Deposit

    DEPARTMENT OF STATE, TELEGRAM, NOV. 1989

  • Deposit

    MINING JOURNAL, 6/1/90, P. 433

  • Deposit

    MINING JOURNAL; PLACER DOME ABANDONS ANDACOLLO; 7/24/92,

  • Deposit

    P. 53.

  • Deposit

    ENGINEERING AND MINING JOURNAL; PLACER DOME TAKES A NEW

  • Deposit

    LOOK AT ANDACOLLO COPPER IN CHILE, AUG. 1992, P. 8.

  • Deposit

    METALS WEEK, 10/29/90, P.6.

  • Deposit

    ENGINEERING AND MINING JOURNAL, 11/91, P.39, 40.

  • Deposit

    METALLOGENIC MAP OF CHILE, 1990, 1991 ED., P.

  • Deposit

    LATIN AMERICAN MINING LETTER, 7/31/92, VOL. 11, NO. 11&12,P2

  • Deposit

    MINING ENGINEERING, 9/92, P.1084.

  • Deposit

    BOLETIN MINERO, 12/92, P.13-15.

  • Deposit

    ENGINEERING AND MINING JOURNAL, 9/92, P.28.

  • Deposit

    METALS WEEK, 3/22/93, P.4.

  • Deposit

    LAML, 3/24/93, P.3, VOL 12, NO. 5.

  • Deposit

    MELALS WEEK, 10/25/93, P.5.

  • Deposit

    LAML, 10/22/93, P.3,4.

  • Deposit

    LAML, 3/29/93, P.3.

  • Deposit

    MINING RECORD, 3/2/94, P.13.

  • Deposit

    AMERICAN METAL MARKET, 6/14/94, P.7.

  • Deposit

    MINING ACTIVITY DIGEST, 1/94, P.8.

  • Deposit

    NORTHERN MINER, 8/30/93, P.1,10.

  • Deposit

    LATIN AMERICAN MINING LETTER, 7/15/94, P.4.

  • Deposit

    METALS WEEK, V 66/N 4, 1/23/95, P.7.

General comments

Subject category Comment text
Deposit A 50 KM H20 PIPELINE, WORKING AGAINST A 1,000 M HEAD, WILL BE REQUIRED. ONE SOURCE SAYS PIPELINE WILL REQUIRE A 6 KM LONG TUNNEL. POWER EXPECTED TO BE SUPPLIED BY EMPRESA NACIONAL DE ELEC- TRICIDAD THRU A 50 KM LONG, 220,000 VOLT TRANSMISSION LINE THE NAME OF THE JOINT VENTURE COMPANY(OPERATOR?) IS NOT KNOWN AT THIS TIME. CODED CO-ORDINATES ARE OF TOWN OF ANDACOLLO. THE TONNAGES IN Q-MAT, ARE NOT CUMULATIVE. THEY HAVE BEEN DERIVED FROM THE TONNAGES AND GRADES IN THE R-MATRIX AND REPRESENT ECONOMIC (OPEN-PITTABLE) RESERVES DETERMINED IN A FEASIBILITY STUDY. THE Q-MATRIX TONNAGES REPRESENT 94% OF THE SUPERGENE ORE RESERVES PRESENT AND 76% OF THE PRIMARY ORE PRESENT. IT IS ASSUMED THAT THE REMAINING ORE IS NOT MINEABLE DUE TO ORE BODY CONFIGURATIONS OR OTHER REASONS. IT HAS BEEN ASSUMED FOR THE PURPOSES OF CODING Q-MAT GRADES THAT THE MO, AU & AG GRADES VARY PROPORTIONATELY WITH THE LOWER CU GRADE FOR THE PRIMARY ORE.

Reporter information

Type Date Name Affiliation Comment
Reporter 11-MAR-97 Porter, Kenneth E. U.S. Bureau of Mines

Beyond USGS

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

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