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Margarita Mine

Past Producer in Oruro, Bolivia with commodities Silver, Lead, Gold, Zinc, Cadmium, 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. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Production statistics
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. General comments
  23. Reporter information

Geologic information

Identification information

Deposit ID 10086942
MRDS ID BL10158
Record type Site
Current site name Margarita Mine

Geographic coordinates

Geographic coordinates: -67.67588, -19.73038 (WGS84)
Elevation 3800
Relative position 9.5 KM S5W OF SALINAS DE GARCI MENDOZA

Site location context

Political divisions (FIPS codes)

Oruro(province)

Bolivia(country)

South America(continent)

Land(continent)

Federal lands

Federal(land status)

Geographic areas

Country State
Bolivia Oruro

Comments on the location information

  • MARGARITA MINE WORKS SAME VEIN SYSTEM AS SAN MIGUEL MINE (BL10200) LOCATED 50 M ABOVE MARGARITA WORKINGS.

Commodities

Commodity Importance
Silver Primary
Lead Secondary
Gold Secondary
Zinc Critical Tertiary
Cadmium Tertiary
Copper Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Sphalerite Ore
Ankerite Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Extensive Propylitic, Silicic Within Shears, Argillic Envelopes Around Shears Up To 2 M Wide.

Analytical data

Result AHLFELD ET AL (1964): 20% PB, 15% ZN, 300 G/T AG. USGS (1990): UP TO 70 G/MT AG, 2.1 G/MT AU, 20% PB, 20% ZN, 500 PPM CU.

Mineral occurrence model information

Model code 77
USGS model code 20b
Deposit model name Sn-polymetallic vein

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic)
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic)
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff

Nearby scientific data

(1) -67.67588, -19.73038
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Nw Trending Shear Zones

Ore body information

  • Strike N 45-75W; N80E
    Dip 80 NE TO VERTICAL
    Length 330M
    Depth to top 0M
  • Dip 80 NE TO VERTICAL

Controls for ore emplacement

  • Fractures

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No
Discoverer Spanish Colonists

Mining district

District name Salinas De Garci Mendoza

Land status

Ownership category Federal

Ownership information

  • Type Owner-Operator
    Owner Corporacion Minera De Bolivia (Comibol)

Production statistics

  • Year 1967
    Material CONS
    Accuracy Accurate
    Description Ap_Grade: ^63.5% Pb 3.4% Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Silver Silver 3wt-pct
    Minor Conc. Lead Lead 64wt-pct

Workings at the site

  • Type of workings Underground
    Length 800M

Reference information

Bibliographic references

  • Deposit

    AHLFELD, F., AND SCHNEIDER-SCHERBINA, A., 1964, LOS YACIMIENTOS MINERALES Y DE HIDROCARBUROS DE BOLIVIA: DEPARTAMENTO NACIONAL DE GEOLOGIA BOLETIN 5, P. 305-306.

  • Deposit

    COMIBOL, INFORME SOBRE GRUPO MINER MARIA LUISA, 4P.

  • Deposit

    SANJINES V., ORLANDO, 1968, ESTUDIO GEOLOGICO DE LA REGION DE TAGUA: UNPUBLISHED TESIS DE GRADO, UNIVERSIDAD MAYOR DE SAN ANDRES, 102P., MAP 1:50,000.

  • Deposit

    MEDINA C., A., JIMENEZ CH., N., AND IBA%EZ V., V., 1988, CARACTERISTICAS GEOLOGICAS Y EVALUACION DEL POTENCIAL MINERAL DEL YACIMIENTO DE METALES PRECIOSOS MARIA LUISA, ORURO-BOLIVIA: PROGRAMA DE LAS NACIONES UNIDAS PARA EL DESAROLLO, PROYECTO BOL/87/012, INFORME NU-17, 32P.

  • Deposit

    EXAMINED BY USGS/GEOBOL PERSONNEL SEPT 1990

  • Deposit

    THESIS BY SANJINES (1968)

  • Deposit

    GEOLOGICAL INVESTIGATIONS BY UNDP (MEDINA ET AL, 1988)

  • Other Database

    CIMRI

  • Reserve-Resource

    COMIBOL

General comments

Subject category Comment text
Deposit VEINS ARE VARIABLY SILICIFIED/MINERALIZED SHEAR ZONES FROM 50 CM TO 6 M WIDE. ORE SHOOTS ARE UP TO 70 M LONG WITH UP TO 30% ORE MINERALS OVERALL.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1990 Long, K.R. U.S. Geological Survey
Updater 01-DEC-1990 Gamble, Bruce (Usgs), Soria, Eduardo (Geobol) U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

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