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

La Loca

Producer in Bolivar, Venezuela 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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Economic information about the deposit and operations
  14. Mining district
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10107242
MRDS ID TC50057
Record type Site
Current site name La Loca

Geographic coordinates

Geographic coordinates: -61.81105, 7.40426 (WGS84)

Site location context

Political divisions (FIPS codes)

Bolivar(province)

Venezuela(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Venezuela Bolivar

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Pyrite Ore
Ankerite Gangue
Calcite Gangue
Siderite Gangue
Tourmaline Gangue

Alteration

  • (Local) Limonitic

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
    Rock unit name El Callao Formation
    Rock description El Callao Formation
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -61.81105, 7.40426
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Major Nw Shear Zone.

Ore body information

  • Dip 20-25 NW

Comments on the geologic information

  • THE DEPOSIT IS NEAR A MAJOR SHEAR ZONE THAT SEPARATES THE EL CALLAO FM ON THE SOUTHEAST FROM THE YURUARI FM ON THE NORTHWEST.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No

Mining district

District name Lo Increible District

Comments on the workings information

  • VEIN HAS BEEN WORKED FOR 120 M.

Comments on development

  • THE MINE PORTAL IS VERY WIDE AND CAVE-LIKE, PERHAPS AN OPEN STOPE.

Reference information

Bibliographic references

  • Deposit

    FERRAND, A., VASQUEZ, J.C., AND RODRIGUES, S.E., 1984, CARATERISTICAS LITOLOGICAS Y ESTRUCTURALES DE LOS DEPOSITOS VETIFORMES DE ORO DE LA REGION DE LO INCREIBLE, ESTADO BOLIVAR, VENEZUELA, IN DE CARVALHO, Y.B., (CHAIRPERSON), II SYMPOSIUM AMAZONICO, ANAIS, SECOND AMAZON SYMPOSIUM; PROCEEDINGS, MANAUS, BRAZIL, APR. 8-12, 1984: SYMPOSIUM AMAZONICO, ANAIS 2, P. 327-328.

  • Deposit

    GOMEZ, M.A., 1986, VETAS DE CUARZO AURIFERO EN LAS FORMACIONES YURUARI Y EL CALLAO EN LO INCREIBLE, EL CALLAO, EDO. BOLIVAR; MINISTERIO DE ENERGIA Y MINAS, 67 P.

  • Deposit

    COX, DENNIS P., 1991, FIELD NOTES.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit ROCK ON THE DUMP IS COMPOSED OF QUARTZ-FILLED BRECCIA WITH CLASTS OF CARBONATED BASALT. BASALT NEAR THE MINE PORTAL SHOWS PILLOW STRUCTURE.

Reporter information

Type Date Name Affiliation Comment
Reporter 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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