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Ryushoden Deposit No 2

Past Producer in 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. Production statistics
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10040067
MRDS ID M053090
Record type Site
Current site name Ryushoden Deposit No 2
Alternate or previous names Hokuchin

Geographic coordinates

Geographic coordinates: 143.34845, 44.31502 (WGS84)
Relative position 200 M NE OF DEPOSIT NO. 1

Site location context

Political divisions (FIPS codes)

Japan(country)

Asia(continent)

Land(continent)

Geographic areas

Country
Japan
Japan
Japan
Japan

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore
Calcite Gangue
Kaolin Gangue
Montmorillonite Gangue
Quartz Gangue
Sulfur Gangue

Alteration

  • (Local) Silicification, Carbonitization, Argillization Lensoid Or Block Silicified Body Bears Close Positional Relation To Deposit

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
    Stratigraphic age (youngest) Pleistocene
    Stratigraphic age (youngest) Miocene
  • Host or associated Associated
    Rock type Unconsolidated Deposit > Volcanic Ash
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone

Nearby scientific data

(1) 143.34845, 44.31502
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Ns Trending Deep Fissure Tectonic Line, Pre-Mineralization Ne-Sw Trending Faults; Braclyanticline, Syncline To Ene, Anticline To Wsw Of Deposit

Ore body information

  • General form LENSOID
    Strike N-S APPROX. N 20 DEG W
    Dip 20 - 30 DEG E
    Thickness 5M
    Length 250M
    Width 50M
    Depth to top 130M
  • General form LENSOID
    Dip 20 - 30 DEG E

Controls for ore emplacement

  • Contact Between Green Tuffaceous Sandstone (Caprock) And Grey Sandstone; Or Along Fractures; F2 (Ne System) Fault-N 30 - 40 Deg E, 60 - 80 Deg Nw Or Se

Comments on the geologic information

  • GEOL.DESC: DISSEMINATED AMONG SANDGRAINS IN GREY SANDSTONE, OR BELOW GREEN TUFFACEOUS SS; AGGLOMERATIONS ALONG GLIDE PLANES; CINNABAR FILM ALONG F2 FAULT; S, FES2 - RICH CINNABAR VEINS

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No
Production years 1963 - RECENT

Production statistics

  • Year 1971
    Material HG
    Accuracy Accurate
    Description Ap_Grade: ^Hg Approx. Equal To 0.30 %
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Mercury Mercury 0wt-pct

Comments on the production information

  • INCLUDES OUTPUT FOR ALL DEPOSITS AT RYUSHODEN MINE (NO 2 DISCOVERED IN SEPT 1963 , ORE GRADE = 0.4 % HG)

Reference information

Bibliographic references

  • Deposit

    FUJIWARA, T., ETAL, 1976 , "ORE DEPOSITS IN THE KITA-MONBETSU REGION, ABASHIRI PROVINCE, HOKKAIDO," HOKKAIDO GEOL SUR REPORT NO 48 P. 61 - 70

  • Deposit

    FUJIWARA, T., K. FUTAMASE, 1971 , "ORE DEPOSITS IN THE SHOKOTZU REGION ABASHIRI PROVINCE, HOKKAIDO," HOKKAIDO GEOL SUR REPORT NO 44 P. 1 - 12

  • Deposit

    KISHIMOTO, F., 1971 , "ON THE HG DEPOSITS & ORES OF RYUSHODEN MINE, HOKKAIDO," GEOL SUR JAP BULL, VOL 22 NO 4 , P. 161 - 170

  • Deposit

    KUJIRAI, S., J. KONO, "RECENT PROGRESS ON HG EXPLORATION AT RYUSHODEN MINE, HOKKAIDO," MINING GEOLOGY VOL 22 NO 109 P. 19 - 28

  • Production

    KUJIRAI, S., 1971 , MINING GEOLOGY

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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