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Guaicas

Occurrence in Bolivar, Venezuela with commodities Aluminum, Iron, Titanium, Metal, Silica, Ferrosilicon
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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. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Reserves and resources
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10068843
MRDS ID W002101
Record type Site
Current site name Guaicas
Alternate or previous names Las Guicas, Los Guaicas, Serrania De Los Guaicas

Geographic coordinates

Geographic coordinates: -63.08719, 6.2182 (WGS84)
Relative position 15 KMS W OF CANAIMA FALLS, GRAN SABANA, STATE OF BOLIVAR, SE VENEZUELA

Site location context

Political divisions (FIPS codes)

Bolivar(province)

Venezuela(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Venezuela Bolivar

Comments on the location information

  • ALTITUDE LESS THAN 500 M; BETWEEN CARONI AND CHIGUAO RIVERS

Commodities

Commodity Importance
Aluminum Critical Primary
Iron Primary
Titanium, Metal Critical Primary
Silica, Ferrosilicon Secondary

Materials information

Materials Type of material
Bauxite Ore
Gibbsite Ore
Goethite Ore
Hematite Ore
Ilmenite Ore

Analytical data

Result HIGH IN FE, AL, TI, LOW IN SIO2
Result 2 TYPES OF ORE: A CLAYEY LATERITE AND A FERRUGIOUS BAUXITE (7 M)
Result SIO2 = 3%, AL2O3 = 35.5%, FE2O3 = 40.1%, TIO2 = 3.1%, PERDIDA AL ROJO = 10.3%

Mineral occurrence model information

Model code 111
USGS model code 38b
Deposit model name Bauxite, laterite type

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
    Stratigraphic age (youngest) Paleocene
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
    Rock unit name Roraima;Supamo Complex
    Rock description Roraima;Supamo Complex
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock

Nearby scientific data

(1) -63.08719, 6.2182
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Anticline With Se-Nw Strike; Cret To E Tert Nuria Peneplain (600-700 M).

Ore body information

  • General form BLANKET
    Thickness 10M
    Width 500M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Medium
Significant No

Reserves and resources

  • Type In-situ
    Estimate year 1986
    Total resources 266000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Aluminum Al2O3 34.5 wt-pct Aluminum Major 1986
    Iron Fe2O3 37 wt-pct Iron Major 1986
    Titanium, Metal TiO2 3.7 wt-pct Titanium Major 1986
    Silica, Ferrosilicon SiO2 1.37 wt-pct Silica Minor 1986
  • Type In-situ
    Estimate year 1986
    Total resources 334000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Aluminum Al2O3 31 wt-pct Aluminum Major 1986
    Iron Fe2O3 43.5 wt-pct Iron Major 1986
    Titanium, Metal TiO2 5.5 wt-pct Titanium Major 1986
    Silica, Ferrosilicon SiO2 1.42 wt-pct Silica Minor 1986

Comments on the reserve resource information

  • FERRUGINOUS-ALUMINOUS LATERITE, LOW IN SILICA, BUT CONTAINS 3.7 TO 5.5% TIO2
  • IT IS THOUGHT THAT THE RESERVES ARE MUCH LARGER THAN THE ABOVE FIGURES INDICATE, POSSIBLY IN THE HUNDREDS OF MILLIONS OF TONNES.

Comments on development

  • SOME DONE IN 1962 AND IN 1975

Reference information

Bibliographic references

  • Deposit

    SIDDER, G.B., 1990, MINERAL OCCURRENCES IN THE GUIANA SHIELD, VENEZUELA: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 90-16, 28 P., 1 OVER-SIZE SHEET.

  • Deposit

    RODRIGUEZ M., S.E., 1986, RECURSOS MINERALES DE VENEZUELA: BOLETIN DE GEOLOGIA, REPUBLICA DE VENEZUELA, MINISTERIO DE ENERGIA Y MINAS, DIRECCION GENERAL SECTORIAL DE MINAS Y GEOLOGIA, V. 15, NO. 27, 228 P.

  • Deposit

    INSTITUTO INTERNACIONAL DE INTEGRACION, 1986, GEOGRAFIA ECONOMICA, AREA DE RECURSOS MINERALES: LA PAZ, INSTITUTO INTERNACIONAL DE INTEGRACION, 716 P.

  • Deposit

    BELLIZZIA G., A., PIMENTEL DE BELLIZZIA, N., AND RODRIGUEZ, S., 1981, RECURSOS MINERALES DE VENEZUELA Y SU RELACION A LA METALOGENESIS: MINISTERIO DE ENERGIA Y MINAS BOLETIN DE GEOLOGIA, PUBLICACION ESPECIAL, NO. 8, P. 6-77.

  • Deposit

    SINKOVEC, BORIS, 1967, LATERITAS Y SUS ROCAS MADRES DE LA REGION DE LA SERRANIA DE LOS GUAICAS, ESTADO BOLIVAR (VENEZUELA): MINISTERIO DE MINAS Y HIDROCARBUROS BOLETIN DE GEOLOGIA, V. 8, NO. 16, P. 238-272.

  • Deposit

    MENENDEZ, A., AND SARMENTERO, A., 1984, GEOLOGY OF THE LOS PIJIGUAOS BAUXITE DEPOSITS, VENEZUELA, IN JACOB, L., JR., (EDS.), BAUXITE; PROCEEDINGS OF THE 1984 BAUXITE SYMPOSIUM: LOS ANGELES, CA, UNITED STATES, FEB. 27 - MARCH 1, 1984, AM. INST. MIN., METALL. AND PET. ENG., P. 387-407.

  • Other Database

    CIMRI

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1973 Irving, Earl M. U.S. Geological Survey
Updater 01-MAY-1991 Bolm, Karen S. U.S. Geological Survey
Updater 01-SEP-1991 Carbonaro, Marguerite M. (Orris, Greta 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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