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  3. Mineral Resource Data System (MRDS)

La Cascada Placer Mine

Producer in La Paz, Bolivia 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. Economic information about the deposit and operations
  12. Ownership information
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10006122
MRDS ID BL20057
Record type Site
Current site name La Cascada Placer Mine
Alternate or previous names Rio Mapiri

Geographic coordinates

Geographic coordinates: -68.29952, -15.28107 (WGS84)
Elevation 1175
Relative position 20 KM FROM MAPIRI.

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
Gold Primary

Materials information

Materials Type of material
Gold Ore
Ilmenite Gangue
Magnetite Gangue
Pyrrhotite Gangue
Quartz Gangue

Alteration

  • (Local) Disseminated Pyrite And Arsenopyrite In Ordovician Slate Bedrock.

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) Miocene
    Stratigraphic age (youngest) Late Ordovician
    Stratigraphic age (youngest) Miocene
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Conglomerate
    Rock unit name Cangalli
    Rock description Cangalli

Nearby scientific data

(1) -68.29952, -15.28107
ListMap

Economic information

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Ownership information

  • Type Owner-Operator
    Owner Cooperativa Sorata Ltda.

Comments on the workings information

  • OPEN PITS AND SHORT UNDERGROUND WORKINGS. MATERIAL IS PANNED AND WASHED IN SLUICES.

Reference information

Bibliographic references

  • Deposit

    VARGAS W., 1985 - INFORME ETAPA "A" COOPERATIVA SORATA LTDA. PROYECTO 465/84 - CENTRO DE DOCUMENTACION FONDO NACIONAL DE EXPLORACION MINERA.

  • Deposit

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

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit LOW CONCENTRATIONS OF GOLD IN CANGALLI CONGLOMERATE (GENERALLY 1.8 TO 25.8 G/M3 BUT LOCALLY 38-76 G/M3 IN PALEOCHANNELS) WHICH CONSISTS OF CLASTS OF PALEOZOIC QUARTZITE AND SLATE AND CLASTS OF MESOZOIC GRANITE IN A FERRUGINOUS CLAY MATRIX. PAYSTREAKS IN UPPER PART OF CONGLOMERATE ARE WORKED.
Deposit DUPLICATE RECORD BL30088 HAS BEEN DELETED.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1993 Long, Keith R. U.S. Geological Survey
Updater 01-JAN-1994 Blacutt, William U.S. Geological Survey

Beyond USGS

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

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