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Fukazawa Pb - Zn Mines

Producer in Akita, Japan with commodities Zinc, Copper, Lead, Silver
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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. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  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 10073091
MRDS ID W018905
Record type Site
Current site name Fukazawa Pb - Zn Mines
Alternate or previous names Kanayamazawa Manjakuzawa, Tsunokakezawa, Koezuruko Orebodies

Geographic coordinates

Geographic coordinates: 140.66527, 40.2818 (WGS84)
Relative position ABOUT 10 KM E. OF OHDATE CITY

Site location context

Political divisions (FIPS codes)

Akita(province)

Japan(country)

Asia(continent)

Land(continent)

Geographic areas

Country State
Japan Akita

Comments on the location information

  • ELEVATION VARIES FROM 200 TO 500 M. ASL

Commodities

Commodity Importance
Zinc Critical Primary
Copper Primary
Lead Primary
Silver Secondary

Materials information

Materials Type of material
Barite Ore
Chalcopyrite Ore
Galena Ore
Pyrite Ore
Sphalerite Ore
Gypsum Gangue
Quartz Gangue

Alteration

  • (Local) Argillization Of Host Rocks

Analytical data

Result KANAYAMAZAWA - KUROKO ORE - 17% ZN, 6.8% PB, 1.6% CU, 219 G/MT AG, 1.5 G/MT AU, 4% FE, 35.7% BASO4. KEIKO ORE - 1.1% CU, 1% ZN, 0.2% PB, 11.2% FE, 21 G/MT AG, 0.3 G/MT AU. MANJAKUZAWA - 10.1% ZN, 1.5% PB, 1% CU, 66 G/MT AG, 0.7 G/MT AU, 9.1% FE, 9.3% BASO4. TSUNOKAKEZAWA - 15.9% ZN, 3.2% PB, 1.1% CU, 163 G/MT AG, 1.3 G/MT AU, 4.8% FE, 18.2% BASO4.

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate)
    Rock unit name Yukisawa Formation (Uwamuki Type) Tuff Breccia;Other Green Tuff Horizons
    Rock description Yukisawa Formation (Uwamuki Type) Tuff Breccia;Other Green Tuff Horizons
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate)

Nearby scientific data

(1) 140.66527, 40.2818
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Takarakura And Ishinosawa Faults
Type of structure Regional
Structure description Hokuroku Basin

Ore body information

  • General form IRREGULAR TO CONCORDANT BEDS
    Thickness 5.1M
    Length 1500M
    Width 800M

Comments on the geologic information

  • YUKISAWA FM. PART OF NISHIKUROSAWA STAGE

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1969
Discoverer Dowa Mining Co. Ltd
Year of first production 1973

Mining district

District name Hokuroku Basin

Ownership information

  • Type Owner-Operator
    Owner Dowa Mining Co. Ltd.

Production statistics

  • Year 1973
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^11. % Zn, 1.2 % Cu, 2. % Pb, 8. % Pyrite
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Copper Copper 1wt-pct
    Ore Pyrite Pyrite 8wt-pct
    Major Ore Lead Lead 2wt-pct
    Major Ore Zinc Zinc 11wt-pct
  • Year 1976
    Period 1973-1976
    Material ORE
    Accuracy Estimate
    Description Cp_Grade: ^11 % Zn, 1.2 % Cu, 2 % Pb, 8 % Pyr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Lead Lead 2wt-pct
    Ore Pyrite Pyrite 8wt-pct
    Ore Copper Copper 1wt-pct
    Major Ore Zinc Zinc 11wt-pct

Comments on the production information

  • ITEM ONE - 10,000 MTPM X 12 MOS. ITEM 8 - 120,000 MTPY X 4 YRS

Reserves and resources

  • Type In-situ
    Estimate year 1977
    Total resources 7500000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 15.47 wt-pct Zinc Major 1977
    Copper Cu 1.11 wt-pct Copper Major 1977
    Lead Pb 3.15 wt-pct Lead Major 1977
  • Type In-situ
    Estimate year 1977
    Total resources 75000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 15.47 wt-pct Zinc Major 1977
    Copper Cu 1.11 wt-pct Copper Major 1977
    Lead Pb 3.15 wt-pct Lead Major 1977

Comments on the reserve resource information

  • ITEM 1 - 8 MIL T MINUS 480,000 MT EST. PROD. 1973 - 1976. ANOTHER SOURCE (METALS SOURCE-BOOK 8-26-74) GIVES RESV. AS 6 MIL. T. 14.67% ZN, 2.99% PB, 1.1% CU
  • ITEM 1 - 8 MIL. T. MINUS 480,000 MT. EST. PROD. 1973 - 1976. ANOTHER SOURCE (METALS SOURCE-BOOK 8-26-74) GIVES RESV. AS 6 MIL T 14.67% ZN, 2.99% PB, 1.1% CU

Comments on development

  • DEV$: 6.5 ; MILL.CAP: 192 MET TONS ; ECON.YEAR: 1976 ; ECON.COM: 16,000 MTPM MILL

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit KANAYAMAZAWA 210 X 90 X 8 M. MANJAKUZAWA 190 X 190 X 13 M. TSUNOKAKEZAWA 480 X 400 X 24 M. (LAMBERT & SATO 1974) ANOTHER SOURCE (TANIMURA, ET AL 1974) GIVES THICKNESS AS 5, 6, 8 M. RESPECTIVELY

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1977 Schruben, Paul G. U.S. Geological Survey

Beyond USGS

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

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