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La Espanola Mine

Past Producer in Potosi, Bolivia with commodities Lead, Silver, Zinc
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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. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Ownership information
  14. Production statistics
  15. Reserves and resources
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10006417
MRDS ID BL20446
Record type Site
Current site name La Espanola Mine

Geographic coordinates

Geographic coordinates: -65.76276, -21.91337 (WGS84)
Elevation 3400
Relative position 0.75 KM S75W OF LA ESPANOLA, 3 KM N25E OF BERQUE

Site location context

Political divisions (FIPS codes)

Potosi(province)

Bolivia(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Bolivia Potosi
Bolivia Potosi

Commodities

Commodity Importance
Lead Primary
Silver Primary
Zinc Critical Primary

Materials information

Materials Type of material
Sphalerite Ore
Quartz Gangue
Siderite Gangue

Alteration

  • (Local) Silicification

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Rock unit name Agua Y Toro
    Rock description Agua Y Toro
    Stratigraphic age (youngest) Middle Ordovician
    Stratigraphic age (youngest) Middle Ordovician
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone

Nearby scientific data

(1) -65.76276, -21.91337
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description N-S Anticlines And Synclines Cut By Inverse Fault

Ore body information

  • General form PINCH AND SWELL

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1910
Year of last production 1982

Ownership information

  • Type Owner
    Owner Empresa Minera San Jorge De Berque Limitada

Production statistics

  • Year 1981
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Lead Lead 73wt-pct

Comments on the production information

  • RESERVES IN MAIN ORE SHOOT ALMOST EXHAUSTED

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Total resources 53572000mt ore
    Commodity Subtype Grade units Group Importance Year
    Lead Pb 4.19 wt-pct Lead Major 1982
    Silver Ag 55 g/mt Silver Major 1982
    Zinc Zn 0.19 wt-pct Zinc Major 1982
  • Type In-situ
    Estimate year 1982
    Total resources 17468000mt ore
    Commodity Subtype Grade units Group Importance Year
    Lead Pb 3.69 wt-pct Lead Major 1982
    Silver Ag 45 g/mt Silver Major 1982
    Zinc Zn 0.3 wt-pct Zinc Major 1982
  • Type Tailings
    Estimate year 1982
    Total resources 40785000mt ore
    Commodity Subtype Grade units Group Importance Year
    Lead Pb 4.38 wt-pct Lead Major 1982
    Silver Ag 60 g/mt Silver Major 1982
    Zinc Zn 0.13 wt-pct Zinc Major 1982

Comments on the reserve resource information

  • (1) POSITIVE; (2) PROSPECTIVE; (3) TAILINGS FROM GRAVITY CONCENTRATION. RESERVES IN MAIN ORE SHOOT NEARLY EXHAUSTED.

Workings at the site

  • Type of workings Underground
    Overall depth 280M

Comments on the workings information

  • SHAFTS, CROSSCUTS, AND DRIFTS ON 11 LEVELS TO 280 M DEPTH.

Comments on development

  • AS OF 1982 RESERVES NEARLY EXHAUSTED AND CLEAN UP OF OLD WORKING UNDERWAY ; ECON.COM: HAND SORTING AND GRAVITY CONCENTRATION

Reference information

Bibliographic references

  • Deposit

    FONEM, 1982, INFORME PROYECTO 266/82

  • Deposit

    GUSTAVSON ASSOC., 1992, COMPENDIUM OF THE ECONOMIC GEOLOGY OF BOLIVIA

  • Other Database

    CIMRI

  • Production

    FONEM (1982)

General comments

Subject category Comment text
Deposit ORE SHOOT AT INTERSECTION OF FRACTURES 35 M LONG AND 3-8 M WIDE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1993 Long, Keith R. U.S. Geological Survey

Beyond USGS

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

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