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  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Crixas

Producer in Goias, 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. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Ownership information
  14. Reserves and resources
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10056540
MRDS ID TC00581
Record type Site
Current site name Crixas
Alternate or previous names Ocorrecia Da Fazenda Do Prefeito, Mina Iii

Geographic coordinates

Geographic coordinates: -50.28355, -14.53188 (WGS84)
Relative position 6 KM SE OF CRIXAS, ABOUT 400 KM NW OF BRASILIA.

Site location context

Political divisions (FIPS codes)

Goias(province)

Brazil(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Brazil Goias

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Gold Ore
Pyrrhotite Ore
Scheelite Ore
Chlorite Gangue
Garnet Gangue
Magnetite Gangue
Quartz Gangue
Sericite Gangue
Tourmaline Gangue

Alteration

  • (Local) Carbonatization, Sericitization, Silicification, Sulfidization. Fervoan Dolomite Schist Is Alteration Product Of Amphibolite, Sercite-Chlorite Schist Probably Is Also. Quartz Commented Graphitic Pelite Is Alteration Product Of Graphitic Pelite. Carbonatization, Sericitization And Silicification Are Indicated.

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Amphibolite
    Rock unit name Rio Vermelho Formation, Pillar De Goias Group;Corego Alayadinho Formation, Pillar De Goias Group
    Rock description Rio Vermelho Formation, Pillar De Goias Group;Corego Alayadinho Formation, Pillar De Goias Group
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic)
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock
  • Host or associated Host
    Rock type Metamorphic Rock > Schist
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite
    Rock unit name Ribeirao Das Antas Formation, Pillar De Goias Group;Ribeirao Das Antas Formation, Pillar De Goias Group
    Rock description Ribeirao Das Antas Formation, Pillar De Goias Group;Ribeirao Das Antas Formation, Pillar De Goias Group

Nearby scientific data

(1) -50.28355, -14.53188
ListMap

Economic information

Ore body information

  • General form TABULAR, LENTICULAR
    Strike WNW
    Dip 35SW

Controls for ore emplacement

  • Tight Folding

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1974
Discoverer Mineracao Serra Grande Ltd (Inco And Kennecott). Mineralsul (Inco Gold, Brazil)
Year of first production 1988
Year of last production 1991

Ownership information

  • Type Owner
    Owner Anglo American And Minerasul
    First year 1990

Reserves and resources

  • Type In-situ
    Estimate year 1990
    Total resources 7000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 10 g/mt Gold Major 1990
  • Type In-situ
    Estimate year 1988
    Total resources 5288268000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 12.72 g/mt Gold Major 1988

Reference information

Bibliographic references

  • Deposit

    ELEVATORSKI, E.A., 1988, WORLD GOLD; MINES-DEPOSITS-DISCOVERIES; VOL. I., NORTH, CENTRAL AND SOUTH AMERICA: MINOBRAS MINING SERVICES, 156 P.

  • Deposit

    BRANCO, PAULO CESAR DE AZEVEDO, 1984, PRINCIPAIS DEPOSITOS MINERAIS: CONCEITOS METODOLOGIA E LISTAGEM, IN DEPT. NACIONAL DA PRODUCAO MINERAL, GEOLOGIA DO BRASIL, TEXTO EXPLICATIVO DO MAPA GEOLOGICO DE BRASIL E DA AREA OCEANICA ADJACENTE INCLUINDO DEPOSITOS MINERAIS: DEPT. NACIONAL DA PRODUCAO MINERAL, P. 359-419.

  • Deposit

    THOMSON, M.L., AND FYFE, W.S., 1990, THE CRIXAS GOLD DEPOSIT, BRAZIL: THRUST-RELATED. POSTPEAK METAMORPHIC GOLD MINERALIZATION OF POSSIBLE BRASILINO CYCLE AGE: ECONOMIC GEOLOGY, VOL. 85, P. 928-942.

  • Deposit

    YAMAKOA, W.N., AND ARAUJO, E.M., 1988, DEPOSITO DE OURO DE MINA III, CRIXAS, GOIAS, IN PRINCIPAIS DEPOSITOS MINERAIS DO BRASIL, EDS. C. SCHOBBNEHAUS AND C.E.S. COELHO: MINISTERIO DAS MINAS E ENERGIA, BRASILIA, V. III, P. 491-498.

  • Deposit

    THOMPSON, M.C., 1986, PETROLOGY OF THE CRIXAS GOLD DEPOSIT, BRAZIL: EVIDENCE FOR GOLD ASSOCIATED WITH HYDROTHERMAL ALTERATION, SUBSEQUENT TO METAMORPHISM IN A. JAMES MACDONALD, ED., GOLD 86: AN INTERNATIONAL SYMPOSIUM ON THE GEOLOGY OF GOLD DEPOSITS, PROCEEDINGS VOLUME, TORONTO, P. 284-296.

  • Other Database

    CIMRI

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1991 Bolm, Karen S. U.S. Geological Survey
Updater 01-DEC-1993 Page, Norman J. U.S. Geological Survey
Updater 15-JUL-1994 Page, Norman J. U.S. Geological Survey
Updater 01-APR-1995 Page, Norman 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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