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Kemi Mine

Producer in Finland with commodity Chromium
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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. Geologic structures
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Ownership information
  13. Reserves and resources
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10024339
MRDS ID ISM0043
Record type Site
Current site name Kemi Mine
Alternate or previous names Elijarvi, Viianlahti-Viianranta

Geographic coordinates

Geographic coordinates: 24.71853, 65.78467 (WGS84)
Relative position PIT

Site location context

Political divisions (FIPS codes)

Finland(country)

Europe(continent)

Land(continent)

Geographic areas

Country
Finland

Comments on the location information

  • 27 KM ESE OF TORNIO; 9 KM NE OF KEMI
  • LAT AND LONG FOR MADEN TOWNSHIP; MID-EASTERN PART OF MAIN GULEMAN PERIDOTITE BODY

Commodities

Commodity Importance
Chromium Critical Primary

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite
    Rock unit name Kemi Intrusion
    Rock description Kemi Intrusion
    Stratigraphic age (youngest) Paleoproterozoic

Nearby scientific data

(1) 24.71853, 65.78467
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Layered Igneous Intrusion

Ore body information

  • Depth to top 10M

Comments on the geologic information

  • FOLDING, FAULTING, ALTERATION; EPROT; CRMT + SRPN + CLRT; TALC + DLMT; MASSIVE CHROMITITE LAYER OCCURS IN SERPENTINIZED PERIDOTITE 50 TO 200 M ABOVE BASE OF KEMI INTRUSION; LAYER IS A FEW CM TO 2 M THICK EXCEPT OVER 4.5 KM OF THE 15-KM STRIKE LENGTH WHERE THERE ARE EIGHT ORE BODIES (SUCCESSIVE WIDENINGS OF THE LAYER TO THICKNESSES OF 30 TO 90 M); INTRUSION OCCURS AT UNCONFORMITY BETWEEN PERAPOHJA SCHISTS AND UNDERLYING GRANITIC BASEMENT.
  • THRUST FAULTING; CRMT + SRPN + OLVN: CR-CLCL + UVAROVITE + RUTL + FCST; LARGEST DEPOSIT IN THE ELAZIG-GULEMAN AND ELAZIG-MADEN MINING DISTRICTS IS UZUNDAMAR; SERPENTINIZATION IS SLIGHT; SORIDAG DEPOSITS ARE CONTINUOUS ALONG STRIKE--NNW TO NE; 14 REPORTED CHROMIUM DEPOSITS IN ELAZIG-MADEN MINING DISTRICT.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1959
Year of first production 1967
Year of last production 1982

Mining district

District name Elijarvi

Ownership information

  • Type Owner-Operator
    Owner Outokumpu Oy
    First year 1960

Comments on the production information

  • PA4: PRODUCTION IN 1977 WAS 837,430 MT OF ORE CONTAINING 145,000 MT OF CR CONCENTRATE AND 23,700 MT CR SANDS; 1.6 MIL TONS OF WASTE ROCK WERE ALSO MINED. PRODUCTION FROM ELIJARVI OREBODY PEAKED AT 503,000 MT IN 1975, MINING OPERATIONS MOVED TO VIIANLAHTI-VIIANRANTA PIT IN 1977. 1979 PRODUCTION ESTIMATED AT 611,000 MT. PC1 PROBABLY IS AN INTERMEDIATE CONCENTRATE AND NOT ORE IN THE SAME SENSE AS PC2
  • UNKNOWN UNKNOWNPRODUCTION DATA REPORTED AS DISTRICT TOTALS FOR GULEMAN MINING AREA (ELAZIG-GULEMAN MINING DISTRICT). PC1: CUMULATIVE PRODUCTION SINCE OPENING

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 26 wt-pct Chromium Major 1982

Comments on the reserve resource information

  • RR1: RESERVES OF EIGHT ORE BODIES (SEE G13)
  • RR1: PROVEN RESERVES
  • RR32: PROBABLE RESERVES

Comments on development

  • NON-GEOLOGIC CONSTRAINTS ON DEVELOPMENT OR EXPANSION IN 1-5 YRS. (). DEVELOPMENT(YES); EXPLORATION(YES); OF 800,000 MT OF ANNUAL PRODUCTION, MAIN PRODUCT (460,000 MT) IS CONCENTRATE FOR FERROCHROME SMELTER AT TORNIO; OTHER PRODUCTS ARE LUMPY ORE FOR EXPORT (300,000 MT), FOUNDRY SANDS (35,000 MT), AND CHROMITE POWDER (5,000 MT).
  • NON-GEOLOGIC CONSTRAINTS ON DEVELOPMENT OR EXPANSION IN 1-5 YRS. ( ENVIRONMENT; TRANSPORT/ACCESS; X ; WINTER WEATHER AFFECTS MINING AND TRANSPORTATION; HIGH RAILROAD FREIGHT RATES). CONCENTRATOR NEARBY AT KEFDAG; MINES IN ELAZIG-GULEMAN AND ELAZIG-MADEN MINING DISTRICTS REPRESENT 2/3 OF ALL CHROMIUM DEPOSITS IN TURKEY; 14 REPORTED CHROMIUM DEPOSITS IN ELAZIG-MADEN MINING DISTRICT.

Reference information

Bibliographic references

  • Deposit

    MINING MAGAZINE, 1978, KEMI--AN OPEN PIT CHROMITE MINE: MINING MAGAZINE, V. 139, NO. 6 (DEC.), P. 577-581, ALSO P. 567.

  • Deposit

    NILSSON, D., 1979, CHROMIUM IN FINLAND: SKILLINGS MINING REVIEW, V. 68, NO. 6, P. 10-14.

  • Deposit

    KAHMA, A., SIIKARLA, T., VELTHEIM, V., VAASJOKI, O., AND HEIKKINEN, A., 1962, ON THE PROSPECTING AND GEOLOGY OF THE KEMI CHROMITE DEPOSIT, FINLAND: HELSINKI, BULLETIN DE LA COMMISSION GEOLOGIQUE DE FINLANDE 194, 89 P.

  • Deposit

    BUNDESANSTALT FUR GEOWISSENSCHAFTEN UND ROHSTOFFE, 1982, UNPUBLISHED CRIB FILE - CHROMIUM: RECORD PA01020.

  • Deposit

    KAHMA, A., 1973, THE MAIN METALLOGENIC FEATURES OF FINLAND: HELSINKI, GEOLOGICAL SURVEY OF FINLAND BULLETIN 265, 28 P.

  • Production

    PA1-PA2: REPORTER (83 07); PA3-PA6: RF4; PA8: RF1 PC1: RF5, P. 7; PC2: REPORTER (84 05)

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.). SURFACE CONCENTRATE, REFINED S,L,G,C,PA1-PA2,RR1 FIELDS UPDATED BY A. WERNER (CANADA) 30 JUN 83
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
Deposit First Production Year: 1967 (PILOT PLANT),1969 (FULL-SCALE MINING)

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1982 Lipin, Bruce R. U.S. Geological Survey
Updater 01-JUN-1983 Lipin, Bruce R. U.S. Geological Survey

Beyond USGS

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

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