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  3. Mineral Resource Data System (MRDS)

Iwashimizu

Past Producer in Nara, 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. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10098438
MRDS ID M053052
Record type Site
Current site name Iwashimizu

Geographic coordinates

Geographic coordinates: 135.93214, 34.63203 (WGS84)
Relative position APPROX. 0.7 KM E OF TOWN OF OUDA - MACHI

Site location context

Political divisions (FIPS codes)

Nara(province)

Japan(country)

Asia(continent)

Land(continent)

Geographic areas

Country State
Japan Nara
Japan Nara
Japan Nara

Commodities

Commodity Importance
Mercury Secondary

Materials information

Materials Type of material
Cinnabar Ore
Kaolin Gangue
Quartz Gangue

Alteration

  • (Local) Argillization (Kaolitinization); Silicification

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) 135.93214, 34.63203
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Extensive Faulting, Fracturing, Median Tectonictine

Controls for ore emplacement

  • Fractures, Fault Crush Zones

Comments on the geologic information

  • GEOL.DESC: ARGILLIZED ZONE APPROX. 10 M WIDE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No

Mining district

District name Yamato District

Reference information

Bibliographic references

  • Deposit

    UENO, M., KATO, K., 1971 , "ON THE DISTRIBUTION & DISPENSION OF HG IN YAMATS HG DEPOSIT AREA, UDA-GUN, NARA-KEN" GEOL. SUR. JAP. BULL VOL. 22 NO. 6 P. 296-304

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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