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Kotalahti Mine

Producer in Finland with commodities Nickel, Copper, PGE
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Host and associated rocks
  7. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Mining district
  10. Ownership information
  11. Production statistics
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10024513
MRDS ID ISM0237
Record type Site
Current site name Kotalahti Mine
Related records 10135012

Geographic coordinates

Geographic coordinates: 27.61977, 62.57038 (WGS84)
Elevation 150
Relative position ORE BODY; 100 M

Site location context

Political divisions (FIPS codes)

Finland(country)

Europe(continent)

Land(continent)

Geographic areas

Country
Finland

Comments on the location information

  • AT ORAVIKOSKI VILLAGE, KOTALAHTI 40 KM SOUTH OF KUOPIO, 37 KM FROM VARKAUS.

Commodities

Commodity Importance
Nickel Critical Primary
Copper Primary
PGE Critical Primary

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock
    Rock unit name Karelian;Karelian
    Rock description Karelian;Karelian
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss

Nearby scientific data

(1) 27.61977, 62.57038
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Economic information

Comments on the geologic information

  • TYPES OF ORE: 1) DISSEMINATED ORE (NICKEL/COPPER RAT-IO ABOUT 10 TO 1), AND 2) BRECCIA TYPE (NICKEL/COPPER RATIO AB-OUT 2 TO 1).
  • MULTIPLE FOLDING; PROT; PNLD; PYTT; CLCP + SPLR + GRDF + PYRT; PRECAMBRIAN COMPLEXLY METAMORPHOSED GNEISSES (2600-2800 MA) FORM PRE-KARELIAN BASEMENT OF SHIELD AREA. HIGHLY MET-AMORPHOSED SUPERCRUSTAL ROCKS, INCLUDING GRAPHITIC AND SULFIDI-C GNEISSES, OVERLIE BASEMENT ROCKS AND IN TURN ARE OVERLAIN BY- EUGEOSYNCLINAL METASEDIMENTS. NI-CU MINERALIZATION OCCURS IN- BASIC TO ULTRABASIC PLUTONS INTRUDED ALONG STEEPLY-DIPPING FO-LD AXES OF COMPLEXLY DEFORMED REGIONAL FOLD SYSTEM, AND ALONG -MAJOR STRIKE-SLIP FAULTS. HOST ROCK OF KOTALAHTI ORE YIELDS A- U-PB DATE ON ZIRCON OF 1925 MA. MINERALIZATION PROBABLY UTILI-ZED SULFUR FROM COUNTRY ROCKS. THE PRINCIPAL DEPOSITS IN THE -KOTALAHTI NICKEL BELT ARE: KOTALAHTI, HITURA, MAKOLA, MJOEVAT-TNET-LAPPVATTNET (SWEDEN), AND TWO OTHER SMALL ONES IN FINLAND-. THE KOTALAHTI DEPOSIT IS DIVIDED INTO FIVE SEPARATE ORE BOD-IES, AND CONSIDERABLE DIFFERENCE IN THE MINERALIZATION MAY BE -NOTED IN THE DIFFERENT PARTS OF THE SAME ORE BODY. THERE ARE -TWO MAIN

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1954
Year of first production 1959
Year of last production 1983

Mining district

District name Outokumpu District

Ownership information

  • Type Owner-Operator
    Owner Outokumpu Oy

Production statistics

  • Year 1964
    Period 1960-64
    Material ORE NI CU
    Accuracy Accurate
    Description Cp_Grade: ^0.76% Ni
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Nickel Nickel 1wt-pct
  • Year 1969
    Period 1965-69
    Material ORE NI CU
    Accuracy Accurate
    Description Cp_Grade: ^ 0.26% Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 0wt-pct
  • Year 1974
    Period 1970-74
    Material ORE NI CU
    Accuracy Accurate
    Description Cp_Grade: ^0.66% Ni
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Nickel Nickel 1wt-pct
  • Year 1980
    Period 1974-80
    Material ORE NI CU
    Accuracy Estimate
    Description Ap_Grade: ^.60% Ni, .14% Cu Recovered
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 0wt-pct
    Major Ore Nickel Nickel 1wt-pct
  • Year 1980
    Period Through 1980
    Material ORE NI CU
    Accuracy Accurate
    Description Cp_Grade: ^ 0.30% Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Copper Copper 0wt-pct

Comments on the production information

  • NONE OR MINOR UNKNOWN

Comments on development

  • NON-GEOLOGIC CONSTRAINTS ON DEVELOPMENT OR EXPANSION IN 1-5 YRS. (). DEVELOPMENT(YES); MINED ORE AVERAGES 0.7% NI AND 0.3% CU; AVERAGE MILL HEAD GRADE IS 0.78% NI AND 0.31% CU.

Reference information

Bibliographic references

  • Deposit

    BUSCH, K., 1977, ROHSTOFFE ZUR STAHLVEREDLUNG IN FINLAND, NORWEGEN, SCHWEDEN: HANNOVER (GERMANY, FEDERAL REPUBLIC-), BUNDESANSTALT FUR GEOWISSENSCHAFTEN UND ROHSTOFFE.

  • Deposit

    WORLD MINING, 1977, CONCENTRATORS OF OUTOKUMPU OY--THE NICKEL-COPPER FLOTATION MILLS: WORLD MINING, V. 30, NO. 13-, P. 45-47.

  • Deposit

    OUTOKUMPU OY ANNUAL REPORTS, 1974, 1976-1981.

  • Deposit

    ISOKANGAS, PAULI, 1978, FINLAND, IN BOWIE, S.H.U., KVALHEIM, A., AND HASLAM, M.J., EDS., MINERAL DEPOSITS OF EUROP-E, VOLUME 1, NORTHWEST EUROPE: LONDON, THE INSTITUTION OF MIN-ING AND METALLURGY AND THE MINERALOGICAL SOCIETY, P. 39-92.

  • Deposit

    GAAL, G., 1972, TECTONIC CONTROL OF SOME NI-CU DEPOSITS IN FINLAND: 24TH INTERNATIONAL GEOLOGY CONGRESS, LONDON, -SECTION 4, P. 215-224.

  • Deposit

    KHAMA, A., 1973, THE MAIN METALLOGENIC FEATURES OF FINLAND: GEOLOGICAL SURVEY OF FINLAND, BULL. 265, P. 29.

  • Deposit

    PAPUNEN, H., 1973, SULFIDE MINERALOGY OF THE KOTALAHTI AND HITURA NICKEL COPPER ORES: FINLAND ANNALES ACADEMIAE S-CIENTIARUM FINNICAE, P. 11-23.

  • Deposit

    ROSKILL INFORMATION SERVICES, 1981, THE ECONOMICS OF NICKEL, 3D ED.: LONDON, ROSKILL INFORMATION SERVICES, [498] -P.

  • Deposit

    ROSS, J.R., AND TRAVIS, G.A., 1981, NICKEL SULFIDE DEPOSITS OF WESTERN AUSTRALIA IN GLOBAL PERSPECTIVE: ECONOMIC -GEOLOGY, V. 76, NO. 6, P. 1291-1329. (PC4, RR3)

  • Production

    PA1-PA3: S3 (MAS) PC1-PC3: S3 (BGR); PC4: RF9, P. 1327

General comments

Subject category Comment text
Deposit THIS RECORD WAS COMPILED FOR THE INTERNATIONAL STRATEGIC MINERALS INVENTORY. THE DATA WERE USED IN PREPARATION OF THE USGS CIRCULAR 930 SERIES OF REPORTS. MINERAL RESOURCE CATEGORIES AND CODES HEREIN ARE FROM THE INTERNATIONAL CLASSIFICATION SYSTEM RECOMMENDED BY THE UNITED NATIONS GROUP OF EXPERTS ON DEFINITIONS AND TERMINOLOGY FOR MINERAL RESOURCES. (SEE NATIONAL RESOURCES FORUM, V. 4, NO. 3, P. 307-313.). UNDERGROUND CONCENTRATE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1983 Foose, Michael P. U.S. Geological Survey

Beyond USGS

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

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