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Tsurumi Group

Past Producer in Oita, Japan with commodity Mercury
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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. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  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 10040011
MRDS ID M053013
Record type Site
Current site name Tsurumi Group
Alternate or previous names Oita Registration No. 188, 1192, 193, 194, 195

Geographic coordinates

Geographic coordinates: 131.88225, 32.94877 (WGS84)
Relative position 0.5 - 7.0 KM FROM KAMIOKA STATION, NIPPEN RR LINE

Site location context

Political divisions (FIPS codes)

Oita(province)

Japan(country)

Asia(continent)

Land(continent)

Geographic areas

Country State
Japan Oita
Japan Oita
Japan Oita

Commodities

Commodity Importance
Mercury Secondary

Materials information

Materials Type of material
Cinnabar Ore
Calcite Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Brecciation Pyrite Dissemination

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
    Stratigraphic age (youngest) Early Triassic
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone

Nearby scientific data

(1) 131.88225, 32.94877
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Economic information

Geologic structures

Type of structure Local
Structure description Faults Which Parallel Bedding Planes

Ore body information

  • Strike N 45 DEG W
    Dip 45 DEG NE
    Thickness 1M
    Length 180M
    Width 100M

Controls for ore emplacement

  • Fault Planes, Crush Zones, Bedding Planes

Comments on the geologic information

  • GEOL.DESC: 9 DEPOSITS, MOST OF WHICH DEVELOP IN ABOVE 3 CASES; SMALL AM'T OF DISSEMINATED CINNABAR

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No
Production years 1938 - 1945

Mining district

District name Sacki Mine

Production statistics

  • Year 1945
    Period 1945
    Material HG
    Accuracy Accurate
    Description Cp_Grade: ^Hg = 0.056 %
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Mercury Mercury 0g/mt

Comments on the production information

  • DATA BEFORE 1938 IS UNAVAILABLE. DATA FIGURES INCLUDES PRODUCTION FOR ENTIRE SACKI MINE, AT LEAST 50 % OF WHICH HAS BEEN FROM THE DEPOSITS OF THE TSURUMI GROUP.

Reserves and resources

  • Type In-situ
    Estimate year 1947
    Total resources 6828000mt ore
    Commodity Subtype Grade units Group Importance Year
    Mercury Hg 0.47 wt-pct Mercury Minor 1947

Comments on the reserve resource information

  • THIS INCLUDES PROVED RESERVES OF DEPOSITS NOS. 1 , 5 , 6 .

Comments on the workings information

  • THIS LENGTH IS OF THE SHAFT AT DEPOSIT 5

Reference information

Bibliographic references

  • Deposit

    HORI, S., 1953 , "MERCURY DEPOSITS OF JAPAN", GEOL. SUR. JAP REPORT NO. 154 , P. 114

  • Deposit

    KINOSHITA, K., 1942 , "MERCURY DEPOSITS OF KYUSHU", JAP ASS MIN PET. ECO GEOL B. V. 25 NO. 1 P. 29 - 35

  • Deposit

    KINOSHITA, K., 1942 , "MERCURY DEPOSITS OF KYUSHU", JAP ASS MIN PET. ECO GEOL B. V. 25 NO 2 P. 66 - 77 .

  • Deposit

    GEN. HEADQU. SUP. COMM ALLIED FORCES, NAT. RES. DIV., 1947 , "MERCURY RESOURCES OF JAPAN" REPORT NO. 96

  • Production

    GEN HEADQU. SUP COMM ALLIED FORCES NAT RES DIV 1947 , REP NO 91

  • Reserve-Resource

    GEN. HEADQU. SUP COMM AU FORC. NAT RES. DIV, 1947 , REP. NO 91 .

General comments

Subject category Comment text
Deposit * STRIKE & DIP DATA IS FOR DEPOSIT NO. 6

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1978 Roddy, Stephen J. U.S. Geological Survey

Beyond USGS

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

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