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  3. Mineral Resource Data System (MRDS)

Jirau

Producer in Rondonia, Brazil with commodity Gold
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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. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Production statistics
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10060783
MRDS ID TC30218
Record type Site
Current site name Jirau
Alternate or previous names Rio Madeira, Reserva Garimpeira Do Rio Madeira

Geographic coordinates

Geographic coordinates: -64.73388, -9.25157 (WGS84)
Location accuracy 2000(meters)

Site location context

Political divisions (FIPS codes)

Rondonia(province)

Brazil(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Brazil Rondonia

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore

Mineral occurrence model information

Model code 119
USGS model code 39a
Deposit model name Placer Au-PGE
Mark3 model number 54

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Alluvium
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Argillite
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone

Nearby scientific data

(1) -64.73388, -9.25157
ListMap

Economic information

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1826

Mining district

District name Rio Madeira

Production statistics

  • Year 1979
    Period To 1979
    Material AU
    Description Cp_Grade: ^2.5 G/Mt Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold 3g/mt

Comments on the production information

  • PART OF PRODUCTION BELONGS TO ARARAS, TAQUARA ALSO ON RIO MADEIRA

Reference information

Bibliographic references

  • Deposit

    CESAR, P. DE A.B., 1984, PRINCIPAIS DEPOSITOS MINERAIS: CONCEITOS, METODOLOGIA, E LISTAGEM, CAPITULO IX, IN GEOLOGIA DO BRASIL, EDS., C. SCHOBBENHAUS, D. DE A. CAMPOS, G.R. DERZE, AND H.E. ASMUS: DEPARTAMENTO NACIONAL DA PRODUCAO MINERAL, PP. 359-419.

  • Deposit

    DOS SANTOS BASTOS, J.B., 1988, DEPOSITO DE OURO DO RIO MADEIRA, RONDONIA, IN PRINCIPAIS DEPOSITOS MINERAIS DO BRASIL, EDS. C. SCHOBBENHAUS AND C.E.S. COELHO: MINISTERIO DAS MINAS E ENERGIA, BRASILA, V. III, P. 573-580.

  • Other Database

    CIMRI

  • Production

    CESAR (1984)

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-92 Norman J Page U.S. Geological Survey
Updater 15-JUL-94 Page, Norman 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