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  3. Mineral Resource Data System (MRDS)

Yunosawa Mine

Past Producer in Hokkaido, 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. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10040087
MRDS ID M053113
Record type Site
Current site name Yunosawa Mine
Alternate or previous names Pepan Mine

Geographic coordinates

Geographic coordinates: 142.66515, 43.73169 (WGS84)
Relative position 25 KM E OF KAMIKAWA RR STATION

Site location context

Political divisions (FIPS codes)

Hokkaido(province)

Japan(country)

Asia(continent)

Land(continent)

Geographic areas

Country State
Japan Hokkaido
Japan Hokkaido
Japan Hokkaido

Commodities

Commodity Importance
Mercury Secondary

Materials information

Materials Type of material
Cinnabar Ore
Kaolin Gangue
Pyrite Gangue
Quartz Gangue
Sericite Gangue

Alteration

  • (Local) Propyillization, Argillization

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) 142.66515, 43.73169
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Ew-Striking Fault, Wide Defin Zone

Ore body information

  • Strike N 45 - 65 DEG W
    Dip 50 - 60 DEG
    Length 700M
    Width 70M

Controls for ore emplacement

  • 2 Parallel Zones (Wnw-Trending) Of Mineralization; Northerly One Primary, Extends 700 M E Of No 1 Shaft, Up To 70 M Wide. Extensive Fracturing, Faulting. Deposit Controlled Along Wnw And Nne Directions.

Comments on the geologic information

  • GEOL.DESC: GREY-LIGHT GREEN ARGILLIZED ZONE OF SOFT CLAY

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No
Production years 1953 - ?

Workings at the site

  • Type of workings Underground
    Overall depth 18M

Reference information

Bibliographic references

  • Deposit

    SAITO, M, Y. WATANABE, 1959 , "ON THE HG ORE DEPOSIT OF YINOSAWA MINE," GEOL. SUR. JAP. BULL VOL 10 NO 2 P. 141 - 146

  • Deposit

    YAJIMA, S., 1951 , "MERCURY DEPOSITS OF HOKKAIDO," HOKKAIDO GEOL SUMMARY REPORT NO. 17

  • Production

    SAITO, M. 1959 , GEOL SUR JAP BULL

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.

Maps centered on this site