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  3. Mineral Resource Data System (MRDS)

Ubina Mine

Past Producer in Potosi, Bolivia with commodities Silver, Lead, Copper
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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. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  15. Production statistics
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10006485
MRDS ID BL30021
Record type Site
Current site name Ubina Mine

Geographic coordinates

Geographic coordinates: -68.36758, -16.49353 (WGS84)
Elevation 4375
Relative position 200 M S20E OF UBINA.

Site location context

Political divisions (FIPS codes)

Potosi(province)

Bolivia(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Bolivia Potosi
Bolivia Potosi

Commodities

Commodity Importance
Silver Primary
Lead Primary
Copper Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Alunite Gangue
Barite Gangue
Calcite Gangue
Hematite Gangue
Pyrite Gangue
Siderite Gangue

Mineral occurrence model information

Model code 77
USGS model code 20b
Deposit model name Sn-polymetallic vein

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Miocene
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -68.36758, -16.49353
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Economic information

Geologic structures

Type of structure Regional
Structure description On W Flank Of N-S Anticline

Ore body information

  • Strike N30E; N15W; N45W
    Dip 70-80SE; 45-75NE; 70NE
    Length 1200M
    Width 400M
  • Strike N30E; N15W; N45W
    Dip 70-80SE; 45-75NE; 70NE
  • Strike N30E; N15W; N45W
    Dip 70-80SE; 45-75NE; 70NE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No
Discoverer Spanish Colonists(?)
Production years 1949-1950

Mining district

District name Ubina

Ownership information

  • Type Owner
    Owner Hochschild (Comibol )
    First year 1952
    Last year 1952

Production statistics

  • Year 1950
    Period 1949-1950
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Dump Ore Silver Silver 867g/mt

Comments on the production information

  • (1) DUMP ORE FROM AGORETA ADIT PROCESSED AT PULACAYO MILL.

Comments on the reserve resource information

  • POTENTIAL RESERVE FOR UBINA-IRMA ZONE IS 15 TO 135 MILLION MT ABOVE AGORETA ADIT LEVEL. ASSAYS OVER 0.2 M WIDTHS YIELDED 646 TO 1780 G/MT AG. STOCKWORK MINERALIZED ROCK PROBABLY AVERAGES 100 TO 150 G/MT AG.

Workings at the site

  • Type of workings Underground
    Overall depth 150M

Comments on the workings information

  • ADITS UP TO 100M LONG OVER A VERTICAL INTERVAL OF 150M, LOWEST ADIT IS AGORETA. ANOTHER ADIT IS CALLED SANTO TORIBIO.

Comments on development

  • MINE REOPENED AND EXPLORED BY HOCHSCHILD 1949-1950, BUT NO PRODUCTION OTHER THAN FROM MINE DUMP OCCURRED. NO EXPLORATION BY COMIBOL OTHER THAN BRIEF SITE EXAMINATIONS.

Reference information

Bibliographic references

  • Deposit

    PINTO V., J., 1988, MODELO CONCEPTUAL Y EVALUACION DEL POTENCIAL MINERAL DE LOS YACIMIENTOS DE METALES PRECIOSOS DE LA REGION UBINA, POTOSI, BOLIVIA: UNITED NATIONS DEVELOPMENT PROGRAM, PROJECT BOL/87/12, 22 P

  • Other Database

    CIMRI

  • Production

    PINTO (1988) P. 8.

General comments

Subject category Comment text
Deposit DIMENSIONS ARE FOR THE ENTIRE UBINA-IRMA STOCKWORK ZONE STRIKING N30E WITH 60SE DIP. VEINS AND VEINLETS A FEW MM TO 1.0 M WIDE. LARGEST VEINS ARE 0.10-1.0 M WIDE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-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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