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Cahuana Mine

Producer in Potosi, Bolivia with commodities Sulfur, Arsenic
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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. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Land status
  15. Ownership information
  16. Reserves and resources
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10005895
MRDS ID BL10074
Record type Site
Current site name Cahuana Mine
Alternate or previous names El Portal, Caba?a, Cerro Caba?a, Cerro Cahuana, Volcan Apogado, La Nueva

Geographic coordinates

Geographic coordinates: -67.96032, -22.05672 (WGS84)
Elevation 5600
Relative position 7 KM FROM SILALA, 820 KM BY ROAD FROM LA PAZ

Site location context

Political divisions (FIPS codes)

Potosi(province)

Bolivia(country)

South America(continent)

Land(continent)

Federal lands

Federal(land status)

Geographic areas

Country State
Bolivia Potosi

Comments on the location information

  • ON W FLANK OF CERRO VOLCAN APAGADO

Commodities

Commodity Importance
Sulfur Primary
Arsenic Critical Tertiary

Materials information

Materials Type of material
Sulfur Ore

Analytical data

Result ORE ANALYSES BY SANJINES ET.AL. (1968): 2.81 TO 51.19% S 0.02 TO 0.08% AS

Mineral occurrence model information

Model code 167
USGS model code 25m
Deposit model name Fumarolic sulfur

Host and associated rocks

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

Nearby scientific data

(1) -67.96032, -22.05672
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Stratovolcano

Ore body information

  • General form IRREGULAR
    Depth to top 0M

Controls for ore emplacement

  • Porous Fractured Tuff

Economic information about the deposit and operations

Development status Producer
Commodity type Both
Significant No

Land status

Ownership category Federal

Ownership information

  • Type Owner-Operator
    Owner John Bossacoma

Reserves and resources

  • Type In-situ
    Estimate year 1968
    Total resources 4820954000mt ore
    Commodity Subtype Grade units Group Importance Year
    Sulfur S 10.8 wt-pct Sulfur Major 1968
  • Type In-situ
    Estimate year 1985
    Total resources 20000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Sulfur S 20 wt-pct Sulfur Major 1985

Workings at the site

  • Type of workings Surface/Underground
    Length 138M

Comments on the workings information

  • 5 ADITS, OPEN PITS

Comments on development

  • WAS WORKED BY A CHILEAN CONCERN. JOHN BOSSACOMA IS OWNER OF LA NUEVA CONCESSION.

Reference information

Bibliographic references

  • Deposit

    SANJINES, R., BALLIVIAN, M., AND ANTEZANA, G., 1968, INFORME DE ASISTENCIA TECNICA A LA PROPIEDAD MINERA EL PORTAL-CABANA: SERVICIO GEOLOGICO DE BOLIVIA INFORME GB-M-593, 13P., MAPS 1:1,000; 1:100; 1:500

  • Deposit

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

  • Deposit

    URIBE, H., 1985, MINTEC INTERNAL REPORT

  • Deposit

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

  • Other Database

    CIMRI

  • Reserve-Resource

    (1) SANJINES ET.AL. (1968); (2) URIBE (1985)

General comments

Subject category Comment text
Deposit VEINLETS AND IMPREGNATIONS OF SULFUR IN ALTERED TUFF. DEPOSIT COVERED BY SNOW YEAR ROUND.

Reporter information

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