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Cabacal I Mine

Producer in Mato Grosso, Brazil with commodities Gold, Silver, Copper
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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. Host and associated rocks
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Reserves and resources
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10085116
MRDS ID W700647
Record type Site
Current site name Cabacal I Mine

Geographic coordinates

Geographic coordinates: -58.18734, -15.24799 (WGS84)
Location accuracy 5000(meters)
Relative position 240 KM WEST OF CUIABA.

Site location context

Political divisions (FIPS codes)

Mato Grosso(province)

Brazil(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Brazil Mato Grosso

Comments on the location information

  • ON FAZENDA SAO PAULO BETWEEN SERRA DO CABACAL AND RIO CABACAL.

Commodities

Commodity Importance
Gold Primary
Silver Primary
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Cubanite Ore
Galena Ore
Gold Ore
Marcasite Ore
Pyrite Ore
Pyrrhotite Ore
Sphalerite Ore
Biotite Gangue
Chlorite Gangue
Quartz Gangue
Sericite Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Metavolcanic Rock
  • Host or associated Host
    Rock type Metamorphic Rock > Schist
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Chert

Nearby scientific data

(1) -58.18734, -15.24799
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Economic information

Comments on the geologic information

  • ORE BODIES OCCUR IN HOMOCLINAL SEQUENCE STRIKING N35-45W AND DIPPING 15-20SW.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1983
Discoverer Mineracao Santa Martha S.A.

Reserves and resources

  • Type In-situ
    Estimate year 1987
    Total resources 111000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 11.6 g/mt Gold Major 1987
  • Type In-situ
    Estimate year 1987
    Total resources 17000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 8.7 g/mt Gold Major 1987

Comments on the reserve resource information

  • ORE (1) HAS 3.0 G/MT AU = EQUIVALENT CUTOFF; ORE (2) HAS 2.0 G/MT EQUIVALENT CUTOFF. 1.0 G/MT AU EQUIVALENT = 0.35 (%CU) + 1.00 G/MT AU.

Comments on development

  • ORE PRODUCTION CAPACITY BETWEEN 300,000 AND 500,000 TONNES/YEAR.

Reference information

Bibliographic references

  • Deposit

    MINING MAGAZINE, JANUARY 1989, P. 45.

  • Deposit

    MONTEIRO, H., DE MACEDO, P.M., DE MORALES, A.A., MARCHETTO, C.M.L., FANTON, J.J. AND MAGALHAES, C.C., 1988, DEPOSITO DE OURO CABACAL I, MATO GROSSO, IN PRINCIPAIS DEPOSITOS MINERAIS DO BRASIL, EDS. C. SCHOBBENHAUS AND C.E.S. COELHO: MINISTERIO DAS MINAS E ENERGIA, BRASILIA, V. III, P. 535-545.

General comments

Subject category Comment text
Deposit LENSES DISTRIBUTED IN AREA OF 160,000 SQUARE METERS AT THE SURFACE. BODIES ARE ELONGATED DOWN DIP. THERE IS DISSEMINATED MINERALIZATION, BANDED MINERALIZATION, VEINLETS THAT ARE MINERALIZED, AND MINERALIZED BRECCIA.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-89 Beougher, Dee (Spanski, Gregory T.) 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.

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