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Nakagawahara

Past Producer in Kochi, Japan with commodities Manganese, 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. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10040033
MRDS ID M053042
Record type Site
Current site name Nakagawahara

Geographic coordinates

Geographic coordinates: 133.66554, 33.68207 (WGS84)
Relative position 1 KM SW OF ANAUCHI

Site location context

Political divisions (FIPS codes)

Kochi(province)

Japan(country)

Asia(continent)

Land(continent)

Geographic areas

Country State
Japan Kochi
Japan Kochi

Commodities

Commodity Importance
Manganese Critical Secondary
Mercury Secondary

Materials information

Materials Type of material
Cinnabar Ore
Pyrite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
    Stratigraphic age (youngest) Late Permian
    Stratigraphic age (youngest) Late Permian
  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite
  • Host or associated Associated
    Rock type Metamorphic Rock > Serpentinite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
  • Host or associated Host
    Rock type Metamorphic Rock > Phyllite
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone

Nearby scientific data

(1) 133.66554, 33.68207
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Economic information

Geologic structures

Type of structure Local
Structure description Syncline/Anticline Structure

Comments on the geologic information

  • GEOL.DESC: CINNABAR OCCURS AS A FILM IN FRACTURES WITHIN THE LARGE-SCALE CENTRAL VEIN OF THE MN DEPOSIT. IT FORMS A DISCONTINUOUS MEAGRE STOCKWORK

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No

Mining district

District name Ananai Mine

Comments on the production information

  • THE HG CONCENTRATION WITHIN THE VEINS, WHICH ARE ON THE ORDER OF MM THICK, REACHES 10 % , BUT AS A WHOLE THE ORE IS QUITE LOW GRADE. THE MINE WAS MOST ACTIVE 1935 - 39

Reference information

Bibliographic references

  • Deposit

    KISHIMOTO, F., 1962 , "MERCURY DEPOSITS OF SHIKOKU, JAPAN", BULL. GEOL. SUR. JAPAN VOL. 13 NO. 3

  • Deposit

    OFFICE OF THE GEOLOGICAL SURVEY OF JAPAN, 1954; JAPANESE MINING MAGAZINE, BI - C

  • Deposit

    HORI, J., 1953 , "MERCURY DEPOSITS OF JAPAN" GEOL. SUR JAPAN REPORT # 154

  • Deposit

    YOSHIMURA, T., 1952 , MANGANESE DEPOSITS OF JAPAN

  • Production

    KISHIMOTO, F., 1962 , JOUR. GEOL. SUR. JAP.

General comments

Subject category Comment text
Deposit IN ONE AREA, THE ORE BODY IS ACCOMPANIED BY GLAUCOPHORE & PIEDMONTITE, AND WAS ALTERED BY THEM, BUT IT IS UNCLEAR WHAT THE RELATION IS TO THE ORE'S FORMATION.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1978 Roddy, Steve 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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