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  3. Mineral Resource Data System (MRDS)

Soledad 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. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  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 10100668
MRDS ID BL20482
Record type Site
Current site name Soledad Placer Mine
Alternate or previous names Rio Merke

Geographic coordinates

Geographic coordinates: -68.26619, -15.26441 (WGS84)
Elevation 800
Relative position 8 KM UP RIVER 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
Pyrite Gangue
Pyrrhotite Gangue
Quartz Gangue
Stibnite 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 Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Conglomerate
    Rock unit name Cangalli
    Rock description Cangalli
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene

Nearby scientific data

(1) -68.26619, -15.26441
ListMap

Economic information

Ore body information

  • Thickness 30M
    Length 400M
    Width 30M

Comments on the geologic information

  • BASEMENT CONSISTS OF ORD SHALE. LMIO CONGLOMERATE IN A BURIED PALEO CHANNEL. OVERBURDEN CONSISTS OF QUAT ALLUVIUM AND COLLUVIUM.

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 Minera Aurifera Soledad

Reserves and resources

  • Type In-situ
    Estimate year 1984
    Total resources 353600000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 10.16 g/mt Gold Major 1984

Comments on the reserve resource information

  • PROSPECTIVE RESERVE

Comments on the workings information

  • TWO ADITS 25 M LONG, OPEN CUT

Comments on development

  • EXPLOTACION MANUAL RUDIMENTARIO, EXTRACCION MANUAL - CARRETILLAS, CONCENTRA ; ECON.COM: PANNING AND SLUICING

Reference information

Bibliographic references

  • Deposit

    GEOBOL, 1984, INFORME ETAPA "A" - COOPERATIVA SOLEDAD LTDA.: GEOBOL INFORME PROYECTO 458/84

  • Deposit

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

  • Other Database

    CIMRI

  • Reserve-Resource

    GUSTAVSON ASSOC. (1992)

General comments

Subject category Comment text
Deposit CONGLOMERATE WITH CLASTS OF SUBROUND PALEOZOIC SHALE AND SANDSTONE IN A LIME-CLAY MATRIX CEMENTED BY IRON OXIDES, WITHIN A PALEOCHANNEL 400 M LONG, 30 M WIDE AND 30 M DEEP. GOLD GRADES ARE 0.174 TO 3.60 G/M3.

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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