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Americano Do Brasil

Prospect in Goias, Brazil with commodities Nickel, Copper, Cobalt
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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. Economic information about the deposit and operations
  12. Reserves and resources
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10081611
MRDS ID W033813
Record type Site
Current site name Americano Do Brasil
Alternate or previous names Salgado

Geographic coordinates

Geographic coordinates: -50.07493, -16.10348 (WGS84)
Relative position 8 KM NORTHWEST OF TOWN OF AMERICANO DE BRASIL. 310 KM W OF BRASILIA, 120 KM WNW OF GOIANIA.

Site location context

Political divisions (FIPS codes)

Goias(province)

Brazil(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Brazil Goias

Comments on the location information

  • 28KM BY DIRT ROAD FROM ANICUNS WHICK IS 80KM BY PAVED HIGHWAY FROM GOIANIA (STATE CAPITAL).GENTLE TOPOGRAPHY,DENSE TROPICAL VEGETATION MOSTLY CLEARED FOR AGRICULTURE

Commodities

Commodity Importance
Nickel Critical Primary
Copper Primary
Cobalt Critical Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Cubanite Ore
Marcasite Ore
Millerite Ore
Pentlandite Ore
Pyrite Ore
Pyrrhotite Ore
Sphalerite Ore
Magnetite Gangue

Alteration

  • (Local) Metamorphism Is Upper Amphibolite To Granulite Facies

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Gabbro > Norite
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite
    Rock unit name Americano Do Brasil Mafic-Ultramafic Complex
    Rock description Americano Do Brasil Mafic-Ultramafic Complex
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Pyroxenite
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite

Nearby scientific data

(1) -50.07493, -16.10348
ListMap

Economic information

Ore body information

  • Strike N90E
    Dip 30N

Comments on the geologic information

  • ELONGATED E-W METAMORPHOSED LAYER BODY, 9 KM LONG AND 2.5 KM WIDE; HORNBLENDE K/AR DATE IS 960 MY SUGGESTING LOWER PROTEROZOIC AGE; COMPOSED OF CUMULATES: DUNITE, WEHRLITE, LHERZOLITE, HARZBURGITE, CLINOPYROXENITE, HORNBLENDITE, GABBRO, GABBRONORITE, OLIVINE GABBRO, NORITE, HORNBLENDE GABBRO

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1972
Discoverer Metais De Goias S.A (Metago)(1972- )

Reserves and resources

  • Type In-situ
    Estimate year 1986
    Total resources 3347000mt ore
    Commodity Subtype Grade units Group Importance Year
    Nickel Ni 0.4 wt-pct Nickel Major 1986
    Copper Cu 0.55 wt-pct Copper Major 1986
    Cobalt Co 0.03 wt-pct Cobalt Major 1986
  • Type In-situ
    Estimate year 1986
    Total resources 889000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Nickel Ni 1.84 wt-pct Nickel Major 1986
    Copper Cu 1.16 wt-pct Copper Major 1986
    Cobalt Co 0.09 wt-pct Cobalt Major 1986
  • Type In-situ
    Estimate year 1986
    Total resources 178000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Nickel Ni 0.69 wt-pct Nickel Major 1986
    Copper Cu 0.51 wt-pct Copper Major 1986
    Cobalt Co 0.03 wt-pct Cobalt Major 1986
  • Type In-situ
    Estimate year 1986
    Total resources 67000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Nickel Ni 0.4 wt-pct Nickel Major 1986
    Copper Cu 0.55 wt-pct Copper Major 1986
    Cobalt Co 0.03 wt-pct Cobalt Major 1986
  • Type In-situ
    Estimate year 1986
    Total resources 45000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Nickel Ni 0.16 wt-pct Nickel Major 1986
    Copper Cu 0.36 wt-pct Copper Major 1986
    Cobalt Co 0.01 wt-pct Cobalt Major 1986
  • Type In-situ
    Estimate year 1986
    Total resources 147500000mt ore
    Commodity Subtype Grade units Group Importance Year
    Nickel Ni 0.28 wt-pct Nickel Major 1986
    Copper Cu 0.68 wt-pct Copper Major 1986
  • Type In-situ
    Estimate year 1986
    Total resources 26000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Nickel Ni 0.17 wt-pct Nickel Major 1986
    Copper Cu 0.46 wt-pct Copper Major 1986
    Cobalt Co 0.02 wt-pct Cobalt Major 1986
  • Type In-situ
    Estimate year 1986
    Total resources 4977000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Nickel Ni 0.62 wt-pct Nickel Major 1986
    Copper Cu 0.65 wt-pct Copper Major 1986
    Cobalt Co 0.04 wt-pct Cobalt Major 1986

Comments on the reserve resource information

  • ORE (1) MEASURED DISSEMINATED AND MASSIVE OVER 10-30 M THICKNESS AND 420 M LENGTH; ORE (2) MEASURED MASSIVE OVER 2 M THICKNESS AND 540 M LENGTH; ORE (3) INDICATED DISSEMINATED; ORE (4) MEASURED DISSEMINATED OVER 10-20 CM AND 200 M LENGTH; ORE (5) MEASURED DISSEMINATED; ORE (6) INFERRED DISSEMINATED; ORE (7) MEASURED DISSEMINATED; ORE (8) TOTAL RESERVE

Comments on development

  • PREFEASIBILITY STUDY BY PAULO ABIB ENGENHARIA S/A FOR EXPLORATION IN 1979.

Reference information

Bibliographic references

  • Deposit

    SANTOS,M,CUBA,E,GOMES DE SA,C,1987,JAZIDA DE NIQUEL,COBRE E COBALTO DE AMERICANO DO BRASIL IN (SCHMALTZ,W,ED) OS PRINCIPAIS DEPOSITOS MINERAIS DA REJIAO CENTRO OCSTE. DNPM 6 DISTRITO P.1-31.

  • Deposit

    NILSON, A.A., DOS SANTOS, M.M., CUBA, E.A., AND GOMES DE SA, C.M., 1986, JAZIDA DE NIQUEL, COBRE E COBALTO DE AMERICANO DO BRASIL, GOIAS, IN PRINCIPAIS DEPOSITOS MINERAIS DO BRASIL, EDS. C. SCHOBBENHAUS AND C.E.S. COELHO: MINISTERIO DAS MINAS E ENERGIA, BRASILIA, V. 11, P. 257-273.

General comments

Subject category Comment text
Deposit SOME UNDERGROUND DEVELOPMENT DONE FOR BULK SAMPLING.SOME EXPLORATION DRILLING CONTINUING. AWAITING DECISION TO DEVELOP. DIMENSIONS GIVEN ABOVE ARE FOR LARGEST OF SEVEN ORE SHOOTS. CONTAINS DISSEMINATED AND MASSIVE ORE BODIES AVERAGING 0.62% NI AND 0.65% CU, WITH THICKNESSES RANGING FROM 10 CM TO 30 M OVER LENGTHS OF 200-540 M.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1983 Grant, Nigel J U.S. Geological Survey
Updater 01-APR-1994 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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