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Tasna District

Producer in Potosi, Bolivia with commodities Tin, Bismuth, Silver, Copper, Tungsten, Antimony, 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. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10068800
MRDS ID W002053
Record type Site
Current site name Tasna District
Alternate or previous names Mines: Acero, Colorada, Deseada, Mariana, Mary, Rosario

Geographic coordinates

Geographic coordinates: -66.18695, -20.6309 (WGS84)
Elevation 5100
Relative position 65KM SE OF UYUNI, AND 28KM NNE OF RR STATION OF CHOCAYA

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

  • LAT-LONG FOR HUALLATANI MINE. DISTRICT CENTERED ON HUALLATANI MINE, ABOVE AN INFERRED BURIED LTRI INTRUSIVE.

Commodities

Commodity Importance
Tin Critical Primary
Bismuth Critical Primary
Silver Primary
Copper Secondary
Tungsten Critical Secondary
Antimony Critical Secondary
Gold Secondary

Comments on the commodity information

  • IMPORTANT MINING DISTRICT

Materials information

Materials Type of material
Bismuthinite Ore
Cassiterite Ore
Chalcopyrite Ore
Ferberite Ore
Pyrite Ore
Wolframite Ore

Alteration

  • (Local) Tourmalinization, Silicification

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
    Stratigraphic age (youngest) Late Ordovician
    Stratigraphic age (youngest) Oligocene
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale

Nearby scientific data

(1) -66.18695, -20.6309
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Reg.Struct: Nw-Se Of Eastern Cordillera
Type of structure Local
Structure description Fold Axes And Cross-Structure Tension Fractures.

Ore body information

  • General form TABULAR
    Strike NE-SW
    Dip SE TO VERTICAL
    Length 1000M
    Width 1.5M
    Depth to top 0M
    Depth to bottom 400M

Controls for ore emplacement

  • Tension Fissures And Fractures At Right Angle To Nw-Se Fold Axes Of Sediments

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Large
Significant No
Discovery year 1880

Mining district

District name Tasna

Land status

Ownership category Federal

Ownership information

  • Type Owner-Operator
    Owner Corporacion Minera De Bolivia (Comibol)

Comments on the production information

  • LARGEST PRODUCER OF BISMUTH IN BOLIVIA. SCHNEIDER-SCHERBINA REPORTS PRODUCTION FROM 1900 TO 1950 TO BE 10,524 F.M.T. PRESENT PRODUCTION ABOUT 600 F.M.T. ANNUALLY.

Comments on the reserve resource information

  • PROBABLY SUBSTANTIAL BECAUSE CONSIDERATION IS BEING GIVEN TO INSTALLATION OF A BISMUTH REFINERY IN BOLIVIA

Workings at the site

  • Type of workings Underground
    Overall depth 350M

Comments on the workings information

  • NUMEROUS NARROW VEINS RANGING 5 TO 90 CMS WIDE OF DIVERSE METAL CONTENT FROM ONE AREA TO ANOTHER. WORKINGS ARE EXTENSIVE.

Comments on development

  • MILL.CAP: 568.375 KG ; ECON.YEAR: 1975

Reference information

Bibliographic references

  • Deposit

    AHLFELD, F., 1932, DER WISMUTBERG: ZTSCHR. PRALCT. GEOL., V. 40, PP. 119-125.

  • Deposit

    AHLFELD, F., AND SCHNEIDER-SCHERBINA, A., 1964, LOS YACIMIENTOS MINERALES Y DE HYDROCARBUROS, DEPTO. NAC. GEOLOGIA, BOL. 5 (ESPECIAL), PP. 207-211.

  • Deposit

    PINTO V., J., 1990, EXPLORACION PRELIMINAR DEL SECTOR ROSARIO-DORADA, MODELO CONCEPTUAL DEL YACIMIENTO TASNA, POTOSI, BOLIVIA: PROGRAMA DE LAS NACIONES UNIDAS PARA EL DESAROLLO UNPUBLISHED REPORT, 85P., MAPS 1:20,000; 1:5,000; 1:2,000.

  • Deposit

    GEOLOGICAL STUDY, UNDP (1990

  • Other Database

    CIMRI

  • Production

    MINISTRY OF MINES AND METALLURGY, 1971

General comments

Subject category Comment text
Deposit DIMENSIONS ARE FOR N30W STRIKING, ELLIPTICAL ZONE OF CONTACT METAMORPHISM AND MINERALIZATION. MINING DISTRICT IS ON THE SOUTHEST END OF THIS ZONE. MANTO DEPOSITS STRIKE N30W DIP NE. VEIN STRIKES N15E 55 SE. MANTOS CONSISTS OF DISCONTINUOUS STOCKWORK VEINS CONFINED TO QUARTZITE BEDS SANDWHICHED BETWEEN METAMORPHOSED SHALE.
Deposit WORKINGS WERE OPERATING IN 1930 AND DURING 1940-1945 THEY BECAME INTERMITTENT. SN AND W WERE PRIMARY COMMODITIES S-OUGHT.WORKINGS WERE OPERATING IN 1930 AND DURING 1940-1945 THEY BECAME INTERMITTENT. SN AND W WERE PRIMARY COMMODITIES S-OUGHT.
Deposit FOLDING ALONG NW-SE AXES ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1973 Irving, Earl M. U.S. Geological Survey
Updater 01-JUN-1978 Urquidi-Barrau, Fernando U.S. Geological Survey

Beyond USGS

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

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