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Tres Hermanos Mine

Past Producer in La Paz, 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. Economic information about the deposit and operations
  12. Ownership information
  13. Reserves and resources
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10006465
MRDS ID BL20507
Record type Site
Current site name Tres Hermanos Mine

Geographic coordinates

Geographic coordinates: -67.21616, -17.11434 (WGS84)
Elevation 4200
Relative position 5 KM N45W OF ICOCHA

Site location context

Political divisions (FIPS codes)

La Paz(province)

Bolivia(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Bolivia La Paz
Bolivia La Paz

Commodities

Commodity Importance
Lead Primary
Silver Primary
Zinc Critical Primary

Materials information

Materials Type of material
Sphalerite Ore
Quartz Gangue

Alteration

  • (Local) Contact Metamorphism

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Santa Vera Cruz Batholith
    Rock description Santa Vera Cruz Batholith
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Late Ordovician
    Stratigraphic age (youngest) Oligocene
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone

Nearby scientific data

(1) -67.21616, -17.11434
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description N 30-40 W Trending Folds

Comments on the geologic information

  • HOST ROCK STRIKES N30-40W DIPS 40-50NE.

Economic information about the deposit and operations

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

Ownership information

  • Type Owner
    Owner Jorge Gutierrez, Oscar Cossio

Reserves and resources

  • Type In-situ
    Estimate year 1980
    Total resources 965000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Lead Pb 3.83 wt-pct Lead Major 1980
    Silver Ag 178 g/mt Silver Major 1980
    Zinc Zn 5.97 wt-pct Zinc Major 1980
  • Type In-situ
    Estimate year 1980
    Total resources 16837000mt ore
    Commodity Subtype Grade units Group Importance Year
    Lead Pb 3.68 wt-pct Lead Major 1980
    Silver Ag 186 g/mt Silver Major 1980
    Zinc Zn 6.24 wt-pct Zinc Major 1980
  • Type In-situ
    Estimate year 1980
    Total resources 13806000mt ore
    Commodity Subtype Grade units Group Importance Year
    Lead Pb 3.72 wt-pct Lead Major 1980
    Silver Ag 186 g/mt Silver Major 1980
    Zinc Zn 5.56 wt-pct Zinc Major 1980

Comments on the reserve resource information

  • (1) POSITIVE; (2) PROBABLE; (3) POSSIBLE

Workings at the site

  • Type of workings Underground
    Length 120M

Comments on the workings information

  • ADITS

Comments on development

  • ECON.COM: HAND SORTED ORE

Reference information

Bibliographic references

  • Deposit

    ROCHA, D., 1980, PROGRAMA DE INVENTARIACION DE LA MINERIA CHICA: INFORME PRELIMINAR GEOBOL

  • Deposit

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

  • Other Database

    CIMRI

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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