1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Kemi Mine

Producer in Finland with commodity Chromium
Map
XML
JSON
KML
B
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  15. Production statistics
  16. Reserves and resources
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10039369
MRDS ID M047031
Record type Site
Current site name Kemi Mine

Geographic coordinates

Geographic coordinates: 24.71992, 65.78189 (WGS84)
Relative position LOCATED CLOSE TO THE SWEDISH BORDER AND THE COAST OF THE GULF OF BOTHNIA; JUST EAST OF LULEA

Site location context

Political divisions (FIPS codes)

Finland(country)

Europe(continent)

Land(continent)

Geographic areas

Country
Finland

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore
Chlorite Gangue
Dolomite Gangue
Serpentine Gangue
Talc Gangue

Analytical data

Result CRIFE 1.55

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite
    Rock unit name Pudasjarvi Granite;Karelian Schist
    Rock description Pudasjarvi Granite;Karelian Schist
    Stratigraphic age (youngest) Paleoproterozoic
    Stratigraphic age (youngest) Paleoproterozoic

Nearby scientific data

(1) 24.71992, 65.78189
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Pudasjarvi Migmatite Granite Massif

Ore body information

  • Thickness 2M

Controls for ore emplacement

  • Cr Ore Associated With A Basic - Ultrabasic Sill-Like Intrusion Within The Contact Between The Massif And Schist. Chromite Enriched Horizon Appears At A Distance Of 50 - 200 M. From The Base Of The Formation And The Surrounding Serpentinites And Talc-Carbonates

Economic information about the deposit and operations

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

Mining district

District name Elijarvi District

Ownership information

  • Type Owner
    Owner Outokumpu Oy

Production statistics

  • Year 1977
    Material CR
    Accuracy Accurate
    Description Ap_Grade: ^44% Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Cr2O3 Chromium Chromium 44wt-pct
  • Year 1977
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^26% Cr2o3, Viianlahti-Viianranta Orebody
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Cr2O3 Chromium Chromium 26wt-pct
  • Year 1981
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^27% Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Cr2O3 Chromium Chromium 27wt-pct
  • Year 1982
    Period 1966-1982
    Material ORE
    Accuracy Estimate
    Description Cp_Grade: ^27% Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Cr2O3 Chromium Chromium 27wt-pct

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Total resources 50000000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 26 wt-pct Chromium Major 1982

Comments on the reserve resource information

  • KEMI IS ONE OF TWO MINES IN FINLAND WHICH HAVE ENOUGH RESERVES TO SECURE CONTINUITY OF MINING PRODUCTION FOR LONGER THAN 10 YEARS

Comments on the workings information

  • CHROMITE ORE IS CONTAINED IN EIGHT CONSECUTIVE POCKETS

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit THERE ARE 8 TOTAL OREBODIES, INCLUDING THE ELIJARVI AND VIIANLAHTI-VIIANRANTA OREBODIES. IN GENERAL, THE ORE IS LOW-GRADE AND FRABLE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1979 Saso, Jerri L. U.S. Geological Survey
Updater 01-DEC-1987 Orris, Greta J. U.S. Geological Survey

Beyond USGS

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

Maps centered on this site