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Fukasawa Mine

Past Producer in Akita, Japan with commodities Barium-Barite, Cadmium, Copper, Gallium, Gold, Indium, Lead, Silver, Sulfur, Zinc, Iron
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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. Ownership information
  12. Production statistics
  13. Reserves and resources
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10133844
MAS/MILS ID 5880020005
Record type Site
Current site name Fukasawa Mine
Alternate or previous names Fukazawa Mine

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 140.31861, 40.17847 (WGS84)
Elevation 200
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Akita(province)

Japan(country)

Asia(continent)

Land(continent)

Geographic areas

Country State
Japan Akita

Commodities

Commodity Importance
Barium-Barite Critical Tertiary
Cadmium Tertiary
Copper Secondary
Gallium Critical Tertiary
Gold Secondary
Indium Critical Tertiary
Lead Secondary
Silver Secondary
Sulfur Secondary
Zinc Critical Primary
Iron Secondary

Materials information

Materials Type of material
Chalcopyrite Unknown
Galena Unknown
Pyrite Unknown
Sphalerite Unknown

Nearby scientific data

Ore Body (1) 140.31861, 40.17847
ListMap

Economic information

Ore body information

  • Thickness 5.1M
    Length 1500M
    Width 800M
    Depth to top 400M
    Field Value
    Type of Orebody #1 STOCKWORK
    Shape of Orebody #1 MASSIVE
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control LITHOLOGY
    Degree of Wallrock Alter. SLIGHT
    Type of Wallrock Alter. #1 ADV ARGILLIC
    Date of Last Modification 830729

Comments on the geologic information

  • STRATIFORM ORES, LOCALIZED IN THE LAYERED TUFF, ARE UNDERLAIN BY SEVERAL FUNNEL SHAPED STOCKWORK ORE BODIES. EIGHT ORE BODIES HAVE BEEN IDENTIFIED: THERE ARE THREE MAIN DEPOSITS; MANJUKA, AND TSUNOKAKE

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Both
Significant Yes
Discovery year 1969
Mining method Caving Methods - Top Slicing
Year of first production 1973
Milling method Flotation

Mining district

District name Hokuroku District

Ownership information

  • Type Owner-Operator
    Owner The Dowa Mining Co Ltd
    Interest 100
    Home office Japan
    Year 1981

Production statistics

  • Year 1973
    Description 10000 Mt/Month
  • Year 1975
    Description 16000 Mt/Month
  • Year 1978
    Description 20000 Mt/Month

Comments on the production information

  • MILL CONCENTRATE GRADE FOR GOLD IS .001%; RECOVERY 55% BYPRODUCT METALS INCLUDE CADMIUM, GALLIUM, INDIUM, SELENIUM, BISMUTH, AND ANTIMONY.

Reserves and resources

  • Type In-situ
    Estimate year 0
    Measured 3000000mt ore
    Demonstrated 3000000mt ore
    Total resources 3000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 12 wt-pct Zinc Major 0
    Lead Pb 3 wt-pct Lead Minor 0
    Copper Cu 1 wt-pct Copper Minor 0
    Silver Ag 150 g/mt Silver Minor 0
    Gold Au 1 g/mt Gold Minor 0
  • Type In-situ
    Estimate year 1974
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 17 wt-pct Zinc Major 1974
    Lead Pb 6.8 wt-pct Lead Minor 1974
    Copper Cu 1.6 wt-pct Copper Minor 1974
    Silver Ag 219 g/mt Silver Minor 1974
    Gold Au 1.5 g/mt Gold Minor 1974
    Iron Fe 4 wt-pct Iron Minor 1974
    Barium-Barite BaSO4 35.7 wt-pct Barium Trace 1974
  • Type In-situ
    Estimate year 1974
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 1 wt-pct Zinc Major 1974
    Lead Pb 0.2 wt-pct Lead Minor 1974
    Copper Cu 1.1 wt-pct Copper Minor 1974
    Silver Ag 21 g/mt Silver Minor 1974
    Gold Au 0.2999 g/mt Gold Minor 1974
    Iron Fe 11.1999 wt-pct Iron Minor 1974
  • Type In-situ
    Estimate year 1974
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 10.1 wt-pct Zinc Major 1974
    Lead Pb 1.5 wt-pct Lead Minor 1974
    Copper Cu 1 wt-pct Copper Minor 1974
    Silver Ag 66 g/mt Silver Minor 1974
    Gold Au 0.7 g/mt Gold Minor 1974
    Iron Fe 9.1 wt-pct Iron Minor 1974
    Barium-Barite BaSO4 9.3 wt-pct Barium Trace 1974
  • Type In-situ
    Estimate year 1974
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 15.9 wt-pct Zinc Major 1974
    Lead Pb 3.2 wt-pct Lead Minor 1974
    Copper Cu 1.1 wt-pct Copper Minor 1974
    Gold Au 1.3 g/mt Gold Minor 1974
    Iron Fe 4.8 wt-pct Iron Minor 1974
    Barium-Barite BaSO4 18.1999 wt-pct Barium Trace 1974
  • Type In-situ
    Estimate year 1991
    Measured 350000mt ore
    Demonstrated 350000mt ore
    Total resources 350000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 18.5 wt-pct Zinc Major 1991
    Lead Pb 4 wt-pct Lead Minor 1991
    Copper Cu 1.6 wt-pct Copper Minor 1991
  • Type In-situ
    Estimate year 1989
    Indicated 1100000mt ore
    Demonstrated 1100000mt ore
    Total resources 1100000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 13.8 wt-pct Zinc Major 1989
    Lead Pb 3.5 wt-pct Lead Minor 1989
    Copper Cu 1.4 wt-pct Copper Minor 1989
  • Type In-situ
    Estimate year 1989
    Inferred 770000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 11.7 wt-pct Zinc Major 1989
    Lead Pb 2.7 wt-pct Lead Minor 1989
    Copper Cu 0.9 wt-pct Copper Minor 1989

Comments on the reserve resource information

  • GRADE IS FOR DEMONSTRATED RESERVES. MINE IS FUKASAWA MINING DEPT. OF THE KOSAKA DIV. NO RECENT DATA.
  • REFERENCE 022024 INDICATES THAT THE SIZE OF THE MINE IS 8 MILLION TONS INCLUDING BOTH TOTAL CRUDE ORE MINED PLUS RESERVES. CRUDE ORE GRADES ARE GIVEN FOR THREE SEPARATE ORE DEPOSITS WITHIN THE FUKAZAWA MINE. RESERVES WILL BE EXHAUSTED BY 3/94 AND MINE WILL BE CLOSED. TOTAL PRODUCTION TO 9/93 HAS BEEN 4,672,093 MT ORE OVER ITS 20+ YEARS OF PRODUCTION (11/73-9/93).
  • RECOVERY IS 90%; DILUTION, 10%.

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method OTHER CAVING METHODS
    Percent Recovery 100
    Rock Characteristics NONCOHERENT
    Rock Support Chars. COMPLETELY INCOMPETENT
    Mine Support Chars. STEEL W/LAGGING CONCRETE REINFOR
    Length of Inclines (m) 240
    Slope of Inclines 12
    Number of Inclines 2
    1st Condition of Workings OPEN
    Capacity 800
    Capacity Units MT ORE/DAY
    Operating Days per Year 290
    Year of Information 1989

Reference information

Bibliographic references

  • Reserve-Resource

    E&MJ INTERNATIONAL DIRECTORY OF MINING, 1991

  • Reserve-Resource

    AMERICAN METAL MARKET, 12/2/93, P.5.

  • Deposit

    MINING MAG 9-76 V133 N09 P245.

  • Deposit

    METALS SOURCEBOOK V11 N022 ITEM B5202

  • Deposit

    MINING JOURNAL. INDUSTRY IN ACTION: DOWA FIND. JUNE 3,

  • Deposit

    1977, P. 435.

  • Deposit

    WORLD MINING. HOW TRACKLESS MINING IS APPLIED TO KUROKO ORE

  • Deposit

    DEPOSITS IN JAPAN. MAY 1976, PP. 68-71.

  • Deposit

    WORLD MINING CATALOG, SURVEY AND DIRECTORY NUMBER. JAPAN.

  • Deposit

    JUNE 1973, PP. 127-128.

  • Deposit

    MINING MAGAZINE. RAPID DEVELOPMENT OF THE FUKASAWA MINE BY

  • Deposit

    A TRACKLESS HAULAGE SYSTEM. DECEMBER, 1976, PP. 504-519.

  • Deposit

    SAWAGUCHI, T., T. SHIMODA, AND S. TANIMURA. ON THE FUKUZAWA

  • Deposit

    ORE BODIES, AKITA PREFECTURE. GEOLOGY OF KUROKO DEPOSITS.

  • Deposit

    1974, PP. 147-155.

  • Deposit

    MINING JOURNAL. OXYGEN BOOST FOR FURUKAWA. DECEMBER 4,

  • Deposit

    1978, P. 437.

  • Deposit

    SHIKAWA, M., N. TONO, AND K. WASAKA. GEOCHEMICAL EXPLORA-

  • Deposit

    TION FOR KUROKO DEPOSITS IN NORTHEAST HONSHU, JAPAN. IN-

  • Deposit

    TERNATIONAL GEOCHEMICAL EXPLORATION SYMPOSIUM. ELSEVIER

  • Deposit

    SCIENTIFIC PUBLISHING COMPANY, NEW YORK, 1975, PP. 65-76.

  • Deposit

    LAMBERT, I. B., AND T. SATO. THE KUROKO AND ASSOCIATED ORE

  • Deposit

    DEPOSITS OF JAPAN: A REVIEW OF THEIR FEATURES AND METAL-

  • Deposit

    LOGENESIS. ECONOMIC GEOLOGY, V. 69, 1974, PP. 1215-1236.

  • Deposit

    DOWA DEVELOPING TSUNOKAKEZANWA KUROKO ORE BODY; BUILDS

  • Deposit

    CRUSHING PLANT, WORLD MINING, JAN. 1976.

  • Deposit

    IKI, DR. SHOJI, KUROKO BRINGS REVIVAL TO JAPANS DOMESTIC

  • Deposit

    MINING, WORLD MINING, APR. 1967, PP. 12-16.

  • Deposit

    IZAWA, EIJI, YOSHIDA, TETSUO, AND SAITO, RYO, GEOCHEMICAL

  • Deposit

    CHARACTERISTICS OF HYDROTHERMAL ALTERATION AROUND THE

  • Deposit

    FAKAZAWA KUROKO DEPOSIT, AKITA, JAPAN, MINING GEOLOGY,

  • Deposit

    VOL. 28, 1978, PP. 325-335 .

  • Deposit

    MARUYAMA, SADAD AND SATO, TAKEO, THE KUROKO AND ASSOCIATED

  • Deposit

    ORE DEPOSITS OF JAPAN: A REVIEW OF THEIR FEATURES AND

  • Deposit

    METALLOGENSIS, ECONOMIC GEOLOGY, VOL. 69, 1974, PP.1215-

  • Deposit

    1236.

  • Deposit

    NIGHTINGALE, L.G. ED., FINANCIAL TIMES MINING INTERNATIONAL

  • Deposit

    YEARBOOK, LONGMAN, LONDON, 1980.

  • Deposit

    SATO, TAKEO, DISTRIBUTION AND GEOLOGICAL SETTING OF THE

  • Deposit

    KUROKO DEPOSITS, SOC. OF MINING GEOLOGISTS OF JAPAN;

  • Deposit

    GEOLOGY OF KUROKO DEPOSITS, MINING GEOLOGY SPECIAL ISSUE,

  • Deposit

    NO. 6, 1974.

  • Deposit

    MINING GEOLOGY, 1974, GEOLOGY OF KUROKO DEPOSITS, SPECIAL

  • Deposit

    ISSUE NO. 6.

  • Deposit

    SCOTT, S.D., STRUCTURAL CONTROL OF THE KUROKO DEPOSITS OF

  • Deposit

    THE HOKUROKU DISTRICT, PAPAN, MINING GEOLOGY, VOL. 28,

  • Deposit

    1978, PP. 301-311.

Reporter information

Type Date Name Affiliation Comment
Reporter 10-MAR-1997 Gazdik 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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