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Neves-Corvo

Producer in Beja, Portugal with commodities Copper, Gold, Sulfur-Pyrite, Lead, Silver, Sulfur, Tin, Zinc
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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. Ore body information
  8. Economic information about the deposit and operations
  9. Mineral rights holdings
  10. Ownership information
  11. Production statistics
  12. Reserves and resources
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10239438
MAS/MILS ID 4710100002
Record type Site
Current site name Neves-Corvo

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -7.96492, 37.59935 (WGS84)
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Beja(province)

Portugal(country)

Europe(continent)

Land(continent)

Geographic areas

Country State
Portugal Beja

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Sulfur-Pyrite Tertiary
Lead Tertiary
Silver Secondary
Sulfur Tertiary
Tin Critical Primary
Zinc Critical Tertiary

Nearby scientific data

Ore Body (1) -7.96492, 37.59935
ListMap

Economic information

Ore body information

  • Thickness 20M
    Length 1000M
    Width 1000M
    Depth to top 425M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Shape of Orebody #1 LENTICULAR
    Primary mode of Origin MAGMATIC DIFFER
    Secondary mode of Origin HYDROTHERMAL
    Primary Ore Control BEDDING
    Type of Wallrock Alter. #1 PYRITIZATION
    Minimum Depth to Top 350
    Date of Last Modification 830421

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Both
Significant Yes
Discovery year 1977
Mining method Filled Stopes - Horiz Cut and Fill W/Tailings
Year of first production 1988
Milling method Flotation

Mineral rights holdings

Type of mineral rights Unknown

Ownership information

  • Type Owner
    Owner Empresa Minera Minas S'Aljustrel (Emma)
    Interest 51
    Home office Portugal
    Year 1995
  • Type Owner
    Owner Rtz Corp.
    Interest 49
    Home office United Kingdom
    Year 1995
  • Type Operator
    Owner Sociedade Mineira De Neves-Corvo Sa (Somincor)
    Home office Portugal
    Year 1995

Production statistics

  • Year 1981
    Period 1973-1981
    Description 450000 Tonnes Ore Mined/ 1973-1981 5876000 Tonnes Cu In Conc.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 450000mt
  • Year 1982
    Description 450000 Tonnes Ore Mined 6111000 Tonnes Cu In Conc.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 450000mt
  • Year 1983
    Description 450000 Tonnes Ore Mined 6346000 Tonnes Cu In Conc.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 450000mt
  • Year 1986
    Period 1984-1986
    Description 300000 Tonnes Ore Mined/ 1984-1986 5796000 Tonnes Cu In Conc.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 300000mt
  • Year 1989
    Description Mt Ore/Yr 1000000 Mt Ore
  • Year 1990
    Description Mt Ore/Yr 1350000 Mt Ore
  • Year 1991
    Accuracy Estimate
    Description Tin In Concentrates (Estimated) 3100 Metric Tons.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Tin Tin 3100mt
  • Year 1991
    Description Mt Ore/Yr 1525000 Mt Ore
  • Year 1992
    Accuracy Estimate
    Description Tin In Concentrates (Estimated) 3000 Metric Tons.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Tin Tin 3000mt
  • Year 1993
    Description Tin In Concentrates (Projected) 11500 Metric Tons.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Tin Tin 11500mt
  • Year 2012
    Period 1992-2012
    Accuracy Estimate
    Description 1600000 Mt Ore/Yr 1992 Thru 2012

Reserves and resources

  • Type In-situ
    Estimate year 1986
    Indicated 2800000mt ore
    Demonstrated 2800000mt ore
    Total resources 2800000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 8.05 wt-pct Copper Major 1986
    Tin Sn 2.6 wt-pct Tin Major 1986
    Silver Ag 40 g/mt Silver Minor 1986
  • Type In-situ
    Estimate year 1986
    Indicated 33350000mt ore
    Demonstrated 33350000mt ore
    Total resources 33350000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 7.75 wt-pct Copper Major 1986
    Zinc Zn 1.25 wt-pct Zinc Trace 1986
    Lead Pb 0.19 wt-pct Lead Trace 1986
    Silver Ag 40 g/mt Silver Minor 1986
  • Type In-situ
    Estimate year 1995
    Demonstrated 26400000mt ore
    Total resources 26400000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 6.29 wt-pct Copper Major 1995
    Silver Ag 50 g/mt Silver Minor 1995
  • Type In-situ
    Estimate year 1995
    Demonstrated 2200000mt ore
    Total resources 2200000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 11.38 wt-pct Copper Major 1995
    Tin Sn 2.76 wt-pct Tin Major 1995
    Silver Ag 39.6 g/mt Silver Minor 1995
  • Type In-situ
    Estimate year 1993
    Indicated 17100000mt ore
    Demonstrated 17100000mt ore
    Total resources 17100000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 7.56 wt-pct Copper Major 1993
    Silver Ag 50 g/mt Silver Minor 1993
    Zinc Zn 1.22 wt-pct Zinc Trace 1993
  • Type In-situ
    Estimate year 1993
    Indicated 2100000mt ore
    Demonstrated 2100000mt ore
    Inferred 32640000mt ore
    Total resources 34740000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 12.03 wt-pct Copper Major 1993
    Tin Sn 3 wt-pct Tin Major 1993
    Silver Ag 41 g/mt Silver Minor 1993
    Zinc Zn 1.73 wt-pct Zinc Trace 1993
  • Type In-situ
    Estimate year 1994
    Demonstrated 17100000mt ore
    Total resources 17100000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 7.21 wt-pct Copper Major 1994
    Silver Ag 50 g/mt Silver Minor 1994
  • Type In-situ
    Estimate year 1994
    Demonstrated 2000000mt ore
    Total resources 2000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 12.1 wt-pct Copper Major 1994
    Tin Sn 2.46 wt-pct Tin Major 1994
    Silver Ag 42 g/mt Silver Minor 1994
  • Type In-situ
    Estimate year 1995
    Demonstrated 28600000mt ore
    Total resources 28600000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 6.68 wt-pct Copper Major 1995
    Tin Sn 0.21 wt-pct Tin Major 1995
    Silver Ag 49.2 g/mt Silver Minor 1995

Comments on the reserve resource information

  • TIN-COPPER RESERVES AS OF 12/31/86 TOTAL COPPER RESERVES AS OF 12/31/86 TOTAL RESERVES USED IN 1987 EVALUATION.

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Capacity 857
    Capacity Units MT ORE/DAY
    Year of Information 1986
  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method PROPOSED
    Mining Method PILLAR AND CHAMBER 10-42
    Percent Waste Rock 10
    Percent Recovery 95
    Capacity 3710
    Capacity Units MT ORE/DAY
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1986

Reference information

Bibliographic references

  • Geology

    LECA, XAVIER, LA DECOUVERTE DES AMAS SULFURES CACHES DE

  • Geology

    NEVES-CORVO (SUD DU PORTUGAL). ESSAI DE METHODOLOGIE,

  • Geology

    CHRON. RECH. MIN., NO. 479, 1985, P.51-62.

  • Geology

    ALBOUY, L., L.N. CONDE, F. FOGLIERINI, X. LECA, A. MORIKIS,

  • Geology

    LE GISEMENT DE SULFURES MASSIFS POLYMETALLIQUES DE NEVES-

  • Geology

    CORVO (BAIXO ALENTEJO, SUD PORTUGAL), CHRONIQUE DE LA

  • Geology

    RECHERCHE MINIERE, NO. 460, 1981, P.5-27.

  • Production

    MINING WORLD, P. 12 (MAY 21, 1990).

  • Production

    METAL BULLETIN, P. 12 (FEB. 18, 1993).

  • Reserve-Resource

    METAL BULLETIN MONTHLY, SOMINCOR'S NEVES-CORVO GETS

  • Reserve-Resource

    UNDERWAY, AUG. 1989 P. 6-9

  • Reserve-Resource

    BROOK HUNT & ASSOCIATES LIMITED, EUROPEAN & AFRICAN

  • Reserve-Resource

    COPPER MINES COST STUDY (1988-1995), VOL. 3, P. 162 (1992)

  • Reserve-Resource

    RTZ CORP., 1993 20F, P.12.

  • Reserve-Resource

    RTZ CORP., 1994 20-F, P.13,14.

  • Deposit

    PERSONAL COMMUNICATION.

  • Deposit

    MINING MAGAZINE, P. 151 (AUG. 1984).

  • Deposit

    INTERNATIONAL MINING, P. 13 (OCT. 1984).

  • Deposit

    SKILLINGS' MINING REVIEW, P. 4 (JAN. 1987).

  • Deposit

    INTERNATIONAL MINING, P. 15 (NOV. 1987).

  • Deposit

    MINING JOURNAL, P. 334 (OCT. 28, 1988).

  • Deposit

    SKILLINGS' MINING REVIEW, P. 4 (NOV. 26, 1988).

  • Deposit

    ENGINEERING AND MINING JOURNAL, P. 22 (FEB. 1989).

  • Deposit

    SKILLINGS' MINING REVIEW, P. 7 (MAR. 25, 1989).

  • Deposit

    WORLD MINING EQUIPMENT, P. 52 (MAY 1989).

  • Deposit

    INTERNATIONAL MINING, P. 11 (MAY 1989).

  • Deposit

    MINING JOURNAL, P. 390 (MAY 19, 1989).

  • Deposit

    RTZ CORP., LETTER FROM P.C.F. CROWSON (JUNE 16, 1989).

  • Deposit

    METAL BULLETIN MONTHLY, P. 6 (AUG. 1989).

  • Deposit

    ENGINEERING AND MINING JOURNAL, P. 48 (AUG. 1989).

  • Deposit

    MINING MAGAZINE, P. 184 (SEPT. 1989).

  • Deposit

    METALS WEEK, PP. 1, 2 (MAY 21, 1990).

  • Deposit

    DEPARTMENT OF STATE TELEGRAM (OCT. 1990).

  • Deposit

    SOMINCOR, P. 14 (MAR. 1989).

  • Deposit

    SOMINCOR, P. 12 (1991 ANNUAL REPORT).

  • Deposit

    SOMINCOR, P. 14 (1992 ANNUAL REPORT).

  • Deposit

    METALS WEEK, P. 2 (FEB. 15, 1993).

Reporter information

Type Date Name Affiliation Comment
Reporter 11-MAR-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.

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