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  3. Mineral Resource Data System (MRDS)

Siilinjarvi

Producer in Finland with commodities Calcium, Mica, Phosphorus-Phosphates
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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. Ownership information
  13. Production statistics
  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 10255250
MAS/MILS ID 4050250003
Record type Site
Current site name Siilinjarvi

Geographic coordinates

Point of reference Town
Geographic coordinates: 27.66958, 63.08175 (WGS84)
Elevation 100
Location accuracy 5000(meters)

Site location context

Political divisions (FIPS codes)

Finland(country)

Europe(continent)

Land(continent)

Geographic areas

Country
Finland

Commodities

Commodity Importance
Calcium Secondary
Mica Secondary
Phosphorus-Phosphates Primary

Materials information

Materials Type of material
Apatite Unknown
Calcite Unknown
Dolomite Unknown
Phlogopite Unknown

Nearby scientific data

Town (1) 27.66958, 63.08175
ListMap

Economic information

Ore body information

  • Thickness 150M
    Length 3500M
    Width 600M
    Area 1.2HA
    Depth to top 5M
    Field Value
    Type of Orebody #1 SHEAR ZONE
    Shape of Orebody #1 TABULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control IGNEOUS
    Degree of Wallrock Alter. UNKNOWN
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 5
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 1.2
    Date of Last Modification 910619

Comments on the geologic information

  • REGIONAL STRIKE IS N-S DIPS VARY FROM 70-90 DEGREE W.
  • OTHER MINERALS PRESENT INCLUDE UNSPECIFIED CARBONATED AND ALKALI AMPHIBOLITES. APATITE IS ACTUALLY FLOURAPATITE. COMBINED CARBONATES IN ORE EQUAL 19 PERCENT

Economic information about the deposit and operations

Operation type Surface
Development status Producer
Commodity type Non-metallic
Significant Yes
Discovery year 1950
Mining method Open Pit
Year of first production 1979
Milling method Flotation

Mining district

District name Siilinjarvi

Mineral rights holdings

Type of mineral rights Other

Ownership information

  • Type Owner-Operator
    Owner Kemira Oy
    Interest 100
    Home office Finland
    Year 1981

Production statistics

  • Year 1985
    Description 8400000 Mt Of Ore Mined

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Inferred 1000000000mt ore
    Total resources 1000000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 4 wt-pct Phosphorus Major 1982

Comments on the reserve resource information

  • RESERVES BASED ON 3.5 KM X 600 M AREA TO 150 M DEPTH TOTAL GEOLOGICALLY INFERRED RESERVES BASED ON 9 KM X 600 M AREA TO 800 M DEPTH COULD APPROACH 7 BILLION MT. MINE RECOVERY = 90%.

Workings at the site

  • Type of workings Surface
    Area 7.2HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method BENCH (BERM)
    Percent Waste Rock 10
    Avg. Overburden Thickness 5
    Primary Material Cover SAND, GRAVEL
    Hardness of Ore HARD ROCKS
    Avg. Bench Height (meters) 12
    Max. Pit Slope (degrees) 90
    Capacity 18182
    Capacity Units MT ORE/DAY
    Operating Days per Year 330
    Operating Shifts per Day 3

Reference information

Bibliographic references

  • Deposit

    "EXPANSION AT SIILINJARVI", MINING MAGAZINE, AUGUST 1982, Z PP. 93-97.

  • Deposit

    "PHOSPHATE: A REVEIW OF PROCESSING TECHNIQUES", WORLD MINING EQUIPMENT, APRIL 1986, PP.40-44.

  • Deposit

    ANONYMOUS, FINNS TO PRODUCE FERTILIZER FROM LOW-GRADE APATITE ORE: CANADIAN MINING JOURNAL, SEPTEMBER 1979, PP. 77-78.

  • Deposit

    ANONYMOUS, KEMIRA EXPLOITS LOW-GRADE PHOSPHATE DEPOSITS AT SIILINJARVI: PHOSPHORUS AND POTASSIUM, NO. 108, JULY/AUGUST 1980.

  • Deposit

    ANONYMOUS, KEMIRA OY: PHOSPHORUS AND POTASSIUM, NO. 111, JAN/FEB, 1981.

  • Deposit

    BRITISH SULPHUR CORP., LTD., WORLD SURVEY OF PHOSPHATE DEPOSITS, 4TH EDITION, 1980, PP. 224-225.

  • Deposit

    BRITISH SULPHUR CORP., LTD., WORLD SURVEY OF PHOSPHATE DEPOSITS, FIFTH ED., 1987, 274PP.

  • Deposit

    CHADWICK, JOHN R. , HOW SIILINJARVI SUCCESSFULLY FLOATS LOW-APATITE: WORLD MINING, JUNE, 1981, PP. 106-109.

  • Deposit

    CHADWICK, JOHN R., "HOW SIILINJARVI SUCESSFULLY FLOATS LOW-GRADE APATITE, WORLD MINING, JUNE 1981, PP. 106-109.

  • Deposit

    CHADWICK, JOHN R., HOW SIILINJARVI SUCCESSFULLY FLOATS LOW-GRADE APATITE: WORLD MINING, JUNE, 1981, PP. 106-109.

  • Deposit

    ENGINEERING AND MINING JOURNAL. PHOSPHATE. JANUARY 1979, P. 110.

  • Deposit

    INDUSTRIAL MINERALS. FINLAND. PHOSPHATE PROGRESS. JANUARY 1977, PP. 10-11.

  • Deposit

    JOHANNESSEN, THOR./WERNER, THE CLIMATE OF SCANDINAVIA: IN, CLIMATES OF NORTHERN AND WESTERN EUROPE OF WORLD SURVEY CLIMATOLOGY, VOL. 5, NY 1970.

  • Deposit

    KIUKKOLA, KALEVI, APATITE FROM LOW-GRADE ORE: LAROX NEWS, NO. 2, FEBRUARY, 1979.

  • Deposit

    KIUKKOLA, KALEVI, SELECTIVE FLOTATION OF APATITE FROM LOW-GRADE PHOSPHORUS ORE CONTAINING CALCITE, DOLOMITE AND PHLOGOPITE: REPRINT FROM BULL. GEOL. SOC. FINLAND(N.D.). MINING MAGAZINE. EUROPE. FINLAND. JANUARY 1979, P. 71.

  • Deposit

    MINING ANNUAL REVIEW, 1984, P. 442.

  • Deposit

    MINING MAGAZINE, SEPTEMBER, 1984, P. 177.

  • Deposit

    NOTHOLT, ARTHUR, "IGNEOUS PHOSPHATE RESOURCES...", PAPER PRESENTED AT INDUSTRIAL MINERALS CONFERENCE, DEC. 1983.

  • Deposit

    OJAKANGAS, RICHARD W., PETROGRAPHY AND SEDIMENTATION OF THE PRE-CAMBRIAN JATULIAN QUARTZITES OF FINLAND: BULL. DE LA COMMISSION GEOLOGIQUE DE FINLANDE, NO. 214, OTANIEMI, 1965, P. 74.

  • Deposit

    PHOSPHOROUS & POTASSSIUM, NO. 169, SEPTEMBER/OCTOBER 1990, PP. 31-32.

  • Deposit

    PUUSTINEN, KAUKO, GEOLOGY OF THE SIILINJARVI CARBONATITE COMPLEX IN EASTERN FINLAND: BULL. DE LA COMMISSION GEOLOGIQUE DE FINLANDE, NO. 249, OTANIEMI, 1971, P. 43.

  • Deposit

    WHITE, LANE, "R & D ARE KEYS TO LOW-GRADE APATITE MINING AT KEMIRA OY", E &MJ, DECEMBER, 1984, PP 34-42.

  • Deposit

    WHITE, LANE, FINNS CONTINUE CONTRIBUTIONS TO ADVANCING WORLD MINING AND PROCESSING TECHNOLOGY: E. & M. J., FEBRUARY, 1977, PP. 65-68.

General comments

Subject category Comment text
Deposit TYPE OF HOLDING IS CONCESSION. THE LATITUDE AND LONGITUDE COORDINATES ARE FOR THE TOWN OF SIILINJARVI. THE CARBONATITE COMPLEX OF SIILINJARVI LIES BETWEEN THE COORDINATES: N 63 05 00 AND N 63 13 00 E 027 40 50 AND E 027 47 00. THE TOWN OF SIILINJARVI IS LOCATED ABOUT 2 KM WEST OF THE SOUTH END OF THE COMPLEX.

Reporter information

Type Date Name Affiliation Comment
Reporter 23-SEP-1996 Fantel, Richard J. 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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