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The Fenyofo I Mine

Producer in Veszprem, Hungary with commodity Aluminum
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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. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10206787
MAS/MILS ID 4370900025
Record type Site
Current site name The Fenyofo I Mine
Alternate or previous names Fenyofo, Bakony Bauxite Mines

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 17.76875, 47.34867 (WGS84)
Location accuracy 5000(meters)

Site location context

Political divisions (FIPS codes)

Veszprem(province)

Hungary(country)

Geographic areas

Country State
Hungary Veszprem

Commodities

Commodity Importance
Aluminum Critical Primary

Materials information

Materials Type of material
Boehmite Unknown

Nearby scientific data

Ore Body (1) 17.76875, 47.34867
ListMap

Economic information

Ore body information

  • Strike N00E
    Dip 10N
    Length 400M
    Field Value
    MAS Matrix # 1
    MAS Column # 4
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 LENTICULAR
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control FAULTING
    Strike And Dip N00E:10N
    Date of Last Modification 920601

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Metallic
Significant No
Mining method Combined Methods
Year of first production 1925
Milling method Washing

Mining district

District name Bakony Mountains

Mineral rights holdings

Type of mineral rights Other

Ownership information

  • Type Operator
    Owner Bakony Bauxite Mines (State Owned)
    Interest 100
    Home office Hungary
    Year 1989

Production statistics

  • Year 1984
    Accuracy Estimate
    Description 50.06% Al2o3 Ore Throughput (Estimate) 450000 Metric Tons Of Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 450000mt 50wt-pct
  • Year 1985
    Accuracy Estimate
    Description 50.53% Al2o3 Ore Throughput (Estimated) 450000 Metric Tons Of Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 450000mt 51wt-pct
  • Year 1986
    Accuracy Estimate
    Description 50.55% Al2o3 Ore Throughput (Estimated) 450000 Metric Tons Of Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 450000mt 51wt-pct
  • Year 1987
    Accuracy Estimate
    Description 50.84% Al2o3 Ore Throughput (Estimated) 450000 Metric Tons Of Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 450000mt 51wt-pct
  • Year 1988
    Accuracy Estimate
    Description 50.60% Al2o3 Ore Throughput (Estimated) 450000 Metric Tons Of Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 450000mt 51wt-pct
  • Year 1989
    Accuracy Estimate
    Description 50.79% Al2o3 Ore Throughput (Estimated) 450000 Metric Tons Of Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 450000mt 51wt-pct
  • Year 1990
    Description 50.63% Al2o3 Ore Throughput (Projected) 450000 Metric Tons Of Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 450000mt 51wt-pct

Comments on the production information

  • ATTENTION MUST BE GIVEN TO THE FACT THAT EVEN THOUGH EXTENSIVE PUMPING HAS BEEN SUCCESSFUL IN LOWERING THE WATER TABLE BELOW THE BAUXITE ORE OF THE NYIRAD MINES WHILE SIMULTANEOUSLY SUPPLYING THE SURROUNDING DOMESTIC, ENVIRONMENTAL, AND INDUSTRIAL NEEDS, THIS PUMPING OF THE GROUNDWATER OVER THE YEARS HAS UPSET THE NATURAL EQUILIBRIUM OF THE WATER TABLE. IN AN EFFORT TO PRESERVE THE LOCAL ENVIRONMENT, THE RATE OF WATER PUMPING HAS BEEN REDUCED TO THE EXTENT THAT THE NYIRAD BAUXITE MINES HAVE BEEN REFLOODED. THIS IS THE REASON WHY THE NYIRAD MINES WERE EXPECTED TO CEASE PRODUCTION IN 1990. THE CLOSURE OF THE NYIRAD BAUXITE MINES IS ESTIMATED TO RESULT IN THE LOSS OF TWO MILLION TONS OF HIGH QUALITY BAUXITE.

Comments on the reserve resource information

  • THE DATA FOR THIS MINE, FENYOFO, IS ALSO LOCATED UNDER THE DATA FOR THE BAKONY BAUXITE MINES UNDER SEQUENCE NUMBER 437-090-0021.
  • THE RESERVES OF BAUXITE ORE FOR THIS MINE IS A FRACTION OF THE TOTAL RESERVES OF 167,000,000 TONS FOR ALL OF THE BAKONY BAUXITE MINES, INCLUDING THE NYIRAD, HALIMBA III, IHARKUT, BITO II, FENYOFO I, AND BAKINYOSZLOP MINES. THE TOTAL RESERVES OF 167,000,000 TONS ARE SUFFICIENT FOR NEARLY SEVENTY YEARS OF PRODUCTION AT THE CURRENT RATES OF MINING. THE ALUMINUM GRADE AS REPORTED BY C.R.U. RANGED FROM 50.06% TO 50.84% AND IS A HEAD GRADE WHICH PROBABLY INCLUDED DILUTION. ALUMINUM SMELTING IN HUNGARY IS COSTLY, SINCE HUNGARY HAS NO CHEAP SOURCE OF ELECTRICAL POWER, AND ELECTRICITY IS A NECESSARY ELEMENT IN ALUMINUM SMELTING.

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method COMBINED METHODS
    Capacity 1500
    Capacity Units MT ORE/DAY
    Operating Days per Year 300
    Operating Shifts per Day 2
    Year of Information 1989

Comments on other economic factors

  • THE EXPORTS OF THE BAUXITE ORE FROM THE BAKONY BAUXITE MINES, INCLUDING THE NYIRAD, HALIMBA III, IHARKUT, BITO II, FENYOFO I, AND BAKINYOSZLOP MINES, TO CZECHOSLOVAKIA, EAST GERMANY, AND POLAND HAVE DECLINED FROM 542,000 TONS IN 1980 TO 379,000 TONS IN 1988. THE REMAINDER OF THE BAUXITE ORE IS DELIVERED TO THE AJKA, ALMASFUZITO, AND MASONMAGYAROVAR CHEMICAL GRADE, ALUMINA PLANTS OF HUNGALU. THE APPORTIONMENT OF THE BAUXITE ORE TRANSPORTED TO THESE DESTINATIONS IS UNKNOWN.

Reference information

Bibliographic references

  • Commodity

    BARDOSSY, G., "BAUXITE DEPOSITS OF HUNGARY" IN BAUXITE-ALUMI

  • Commodity

    INUM. PROC. 2D INTERNAT. SYMP. ICSOBA, BUDAPEST, 1969, VOL.

  • Commodity

    -20, 1971.

  • Commodity

    HUNGARIAN BAUXITE MINING IN THE BAKONY REGION, MINING

  • Commodity

    MAGAZINE, L. 132, PP. 350-59 (MAY 1975).

  • Commodity

    METALS SOURCE BOOK, ITEM (A0834) (JAN. 15, 1973).

  • Commodity

    SURVEY OF PLANNED INCREASES IN WORLD BAUXITE, ALUMINA,

  • Commodity

    AND ALUMINUM APACITIES 1974 - 1979 LONDON: ALUMINUM

  • Commodity

    CONDUCTOR DEVELOPMENT, (1973).

  • Commodity

    MINING JOURNAL, P. 11 (JULY 16, 1973).

  • Commodity

    MINING ANNUAL REVIEW, P. 511 (1975).

  • Commodity

    MINING ANNUAL REVIEW, P. 449 (1974).

  • Commodity

    MINING ANNUAL REVIEW, P. 435 (1972).

  • Commodity

    INDUSTRIAL MINERALS, P. 21 (SEPT. 1991).

  • Commodity

    INTERNATIONAL MINING, P. 23 (JUNE 1990).

  • Commodity

    COMMODITIES RESEARCH UNIT LIMITED.LONDON, THE BASE METAL

  • Commodity

    INDUSTRIES OF EASTERN EUROPE, PP. 149-50 (1990).

General comments

Subject category Comment text
Deposit ORE FOR THIS MINE, THE FENYOFO MINE, IS FOUND IN GRABENS, IN A CHECKERBOARD PATTERN. A GRABEN IS "A DEPRESSED FAULT BLOCK" BY DEFINITION. NOTE, THAT THE GEOLOGIC AGE IN THE LITHOLOGY SECTION OF THE ADIT/MAS FORM FOR THIS MINE IS OF THE MESOZOIC ERA, WHERE IN FACT, THE GEOLOGIC AGE MORE ACCURATELY RANGES FROM THE UPPER TRIASSIC TO THE MIDDLE OF THE EOCENE EPOCH OF THE TERTIARY PERIOD. FURTHERMORE, THE BAUXITE ORE IS ENCLOSED IN SEDIMENTARY ROCK WHICH GRADES FROM A UPPER TRIASSIC DOLOMITE UP TO A MIDDLE EOCENE LIMESTONE, THUS IS THE REASON WHY THE ROCK NAME IS LISTED AS A DOLOMITIC-LIMESTONE FOR SIMPLICITY. THE MAIN BAUXITE MINERAL IS BOEHMITE AND THE RATIO OF AL2O3 TO SIO2 IN THE GEOLOGICAL RESOURCE IS 6 TO 1. THE SILICATE CONTENT, SIO2, FOR EACH PRODUCTION YEAR UNDER THE PRODUCTION HISTORY SECTION OF THE ADIT/MAS INFORMATION FORM IS AS FOLLOWS: FOR 1984, THE SIO2 CONTENT IS 7.25%; FOR 1985, THE SIO2 CONTENT IS 7.31%; FOR 1986, THE SIO2 CONTENT IS 7.57%; FOR 1987, THE SIO2 CONTENT IS 7.61%; FOR 1988, THE SIO2 CONTENT IS 7.51%; FOR 1989, THE SIO2 CONTENT IS 7.08%; AND FOR 1990, THE SIO2 CONTENT IS 7.49%. ALL OF THE SILICATE CONTENT PERCENTAGES FOR THE YEARS 1984 THROUGH 1989 ARE ESTIMATED, AND THE SILICATE CONTENT PERCENTAGE FOR THE YEAR OF 1990 IS A PROJECTED VALUE. MOST RESERVES IN THE UNDERGROUND MINES ARE BELOW THE KARST WATER LEVEL WHICH CREATES A CONSTANT HAZARD OF FLOODING; HOWEVER, PUMP STATIONS HAVE BEEN SUCCESSFULLY USED TO SOLVE THE FLOODING PROBLEMS IN THE NYIRAD MINES WHICH WOULD HAVE OTHERWISE ENDANGERED MINING EQUIPMENT AND PERSONNEL. MOBILE MINING EQUIPMENT INCLUDES ATLAS COPCO CAVO 310 LOADERS, GHH LHD MACHINES, AND ATLAS COPCO CAVO DRILLING RIGS IN THE UNDERGROUND MINES. THERE IS NO CRUSHING OR CONCENTRATING PLANT FOR THE FENYOFO I MINE, NOR FOR ANY OF THE BAKONY BAUXITE MINES, INCLUDING THE NYIRAD, HALIMBA III, IHARKUT, BITO II, AND BAKINYOSZLOP MINES. THE TOTAL LABOR FORCE FOR ALL OF THESE JUST NAMED MINES WAS PROJECTED TO BE AT 3,200 PERSONNEL IN 1990. NOTE FURTHER, THAT THE STRIKE AND DIP INFORMATION FOR THIS MINE, AMONG THE OTHER MINES MENTIONED IN THE FOREGOING PARAGRAPH IS ONLY PARTIALLY GIVEN. IT IS HARD TO DISCERN WHETHER THE NUMERICAL VALUE GIVEN, 10 N, IS THE STRIKE OR THE DIP OF THE BEDS. ON GEOLOGIC MAPS, THE NUMERICAL DATA GIVEN WITH THE STRIKE AND DIP SYMBOL IS USUALLY, IF NOT ALWAYS, THE DIP OF THE BEDS. THEREFORE, THE "10 N" MAY MEAN THE BEDS DIP TEN DEGREES NORTH AND STRIKE ZERO DEGREES FROM DUE NORTH.

Reporter information

Type Date Name Affiliation Comment
Reporter 23-DEC-94 Wilburn, David R. 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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