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Cerro Tomasamil Prospect

Occurrence in Potosi, Bolivia with commodities Zinc, Manganese, Iron
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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. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10005892
MRDS ID BL10071
Record type Site
Current site name Cerro Tomasamil Prospect

Geographic coordinates

Geographic coordinates: -67.9606, -21.28089 (WGS84)
Elevation 5000
Relative position 40 KM SE OF CHIGUANA

Site location context

Political divisions (FIPS codes)

Potosi(province)

Bolivia(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Bolivia Potosi

Comments on the location information

  • ON NORTH FLANK OF CERRO TOMASAMIL

Commodities

Commodity Importance
Zinc Critical Primary
Manganese Critical Primary
Iron Primary

Materials information

Materials Type of material
Magnetite Ore
Sphalerite Ore
Clay Gangue
Limonite Gangue
Sericite Gangue
Specularite Unknown

Alteration

  • (Local) Sericite-Hematite-Limonite-Clay

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Holocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -67.9606, -21.28089
ListMap

Economic information

Ore body information

  • General form IRREGULAR
    Strike E-W
    Dip 80N
    Depth to top 0M

Controls for ore emplacement

  • Faults, Fractures, Breccia Bodies

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Comments on the workings information

  • THERE ARE NO WORKINGS

Reference information

Comments on the other database information

  • BL10388 AND BL10071 ARE NOT DUPLICATES, KEITH LONG, MARCH 94.

Bibliographic references

  • Deposit

    SANJINES, R., PONCE, J., AND HURTADO, G., 1968, INFORME SOBRE EL ESTUDIO GEOLOGICO EN LOS CERROS TOMASIMIL Y CABANA: SERVICIO GEOLOGICO DE BOLIVIA INFORME GB-M-584, 10P., MAP 1:200

  • Deposit

    GEOLOGICAL INVESTIGATIONS BY GEOBOL, SANJINES ET. AL. (1968

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit MINERALIZED E-W VEINS WITHIN FRACTURES PERPENDICULAR TO N10E FAULT. E-W VEINS ARE UP TO 5 M THICK. VEINS IN N10E FAULT ARE 10 TO 20 CM WIDE. THERE IS A SEPERATE BRECCIA BODY NE OF VEINS. VEINS CONSIST OF FE OXIDES AND SERICITE-HEMATITE-CLAY. BRECCIA IS CEMENTED BY MAGNETITE, SPHALERITE, AND SPECULARITE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1990 Long, Keith R. U.S. Geological Survey
Updater 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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