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  3. Mineral Resource Data System (MRDS)

Jacare and Jacarezinho

Occurrence in Para, Brazil with commodities Nickel, Iron, Cobalt
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Geologic information

Identification information

Deposit ID 10065478
MRDS ID TC40810
Record type Site
Current site name Jacare and Jacarezinho

Geographic coordinates

Geographic coordinates: -51.89916, -6.26475 (WGS84)
Relative position ABOUT 90 KM NNE OF SAO FELIX DO XINGU.
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Geographic areas

Country State
Brazil Para

Comments on the location information

  • IN BASIN OF RIO SAO JOSE, A TRIBUTARY OF RIO XINGU BETWEEN 6-12 AND 6-20S AND 51-50 AND 51-58W. JACARE BODY LIES A FEW KM NORTH OF THE SMALLER JACAREZINHO BODY.

Commodities

Commodity Importance
Nickel Primary
Iron Primary
Cobalt Secondary

Materials information

Materials Type of material
Chlorite Ore
Serpentine Ore
Goethite Gangue
Hematite Gangue
Quartz Gangue
Spinel Gangue

Mineral occurrence model information

Model code 110
USGS model code 38a
BC deposit profile B02
Deposit model name Lateritic Ni

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Holocene
  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite
    Rock unit name Jacare-Jacarezinho Mafic-Ultramafic Complex, Xingu Complex;Jacare-Jacarezinho Mafic-Ultramafic Complex, Xingu Complex
    Rock description Jacare-Jacarezinho Mafic-Ultramafic Complex, Xingu Complex;Jacare-Jacarezinho Mafic-Ultramafic Complex, Xingu Complex
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock

Nearby scientific data

(1) -51.89916, -6.26475
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Comments on the geologic information

  • THE JACARE MAFIC-ULTRAMAFIC COMPLEX IS ABOUT 20 KM LONG ELONGATED IN A N-S DIRECTION AND JACAREZINHO MAFIC ULTRAMAFIC COMPLEX IS 4 KM LONG AND IS MORE EGG-SHAPED. WIDTHS VARY BETWEEN 2 AND 4 KM. BOTH MASSES FROM MOUNTAINOUS AREAS.

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Ownership information

  • Type Operator
    Owner Mineracao Serras Do Sul Ltd (Mineralsul) .
    First year 1974
    Last year 1977

Comments on the production information

  • INACTIVE PRODUCTION, STATUS NOT INDICATED.

Reserves and resources

  • Type In-situ
    Estimate year 1986
    Total resources 539,000,000mt ore
    Commodity Subtype Grade units Group Importance Year
    Nickel Ni 1.41 wt-pct Nickel Major 1986
    Iron Fe 23 wt-pct Iron Major 1986

Comments on the reserve resource information

  • ORE (1) JACARE TOTAL RESERVE WITH 1% NI CUTOFF GRADE. ORE (2) JACAREZINHO TOTAL RESERVE WITH 1% NI CUTOFF GRADE.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS TC40810

Bibliographic references

  • Deposit

    DE CASTRO FILHO, L.W. AND MATTOS, S.C., 1986, DEPOSITOS DE NIQUEL LATERITICO DE JACARE E JACAREZINHO, MUNICIPIO DE SAO FELIX DO XINGU, PARA, IN PRINCIPAIS DEPOSITOS MINERAIS DO BRASIL, EDS. C. SCHOBBENHAUS AND C.E.S. COELHO: MINISTERIO DAS MINAS E ENERGIA, BRASILIA, V. 11, P

  • Other Database

    CIMRI

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1994 Page, Norman J. U.S. Geological Survey