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  3. Mineral Resource Data System (MRDS)

Tora Placer

Producer in La Paz, Bolivia with commodities Gold, Tin
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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. Economic information about the deposit and operations
  11. Mining district
  12. Ownership information
  13. Reserves and resources
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10111288
MRDS ID BL20034
Record type Site
Current site name Tora Placer

Geographic coordinates

Geographic coordinates: -68.06618, -15.54773 (WGS84)
Elevation 550
Relative position 5 KM UPSTREAM FROM TIPUANI AT CHIMAJAUKATA.

Site location context

Political divisions (FIPS codes)

La Paz(province)

Bolivia(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Bolivia La Paz

Commodities

Commodity Importance
Gold Primary
Tin Critical Tertiary

Materials information

Materials Type of material
Cassiterite Ore
Gold Ore
Garnet Gangue
Ilmenite Gangue
Quartz Gangue

Mineral occurrence model information

Model code 119
USGS model code 39a
Deposit model name Placer Au-PGE
Mark3 model number 54

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
    Stratigraphic age (youngest) Late Ordovician
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Associated
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
  • Host or associated Associated
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Conglomerate
    Rock unit name Cangalli Formation
    Rock description Cangalli Formation

Nearby scientific data

(1) -68.06618, -15.54773
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Economic information

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discoverer 1800'S

Mining district

District name Tipuani

Ownership information

  • Type Owner-Operator
    Owner Cooperativa Chima Ltda.

Reserves and resources

  • Type In-situ
    Estimate year 1985
    Total resources 639450000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 15 g/mt Gold Major 1985

Comments on the workings information

  • AN OLD SHAFT, 40 M DEEP, SUNK IN 1950 BY ARAMAYO CO., SHORT ADITS, OPEN PITS.

Comments on development

  • EXPLORED ABOUT 1950 BY ARAMAYO CO.; CURRENT WORKINGS ARE MECHANIZED USING GRAVITY CONCENTRATION. ; MILL.CAP : 50 M3/HOUR

Reference information

Bibliographic references

  • Deposit

    CLAURE H., 1985 - INFORME ETAPA "A" - PROYECTO 478/85 - FONDO DE EXPLORACION MINERA.

  • Deposit

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

  • Other Database

    CIMRI

  • Reserve-Resource

    (1) GUSTAVSON ASSOC. (1992)

General comments

Subject category Comment text
Deposit FLAKES (1-5 MM) AND DUST OF GOLD (1:1 RATIO) IN TERTIARY CONGALLI CONBLOMERATE. BEST VALUES NEAR BASE OF CONGLOMERATE. LITTLE OR NO GOLD FOUND IN RECENT STREAM SEDIMENTS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-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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