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Olinfa Mine

Past Producer in La Paz, Bolivia with commodity Tin
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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. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Production statistics
  17. Reserves and resources
  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 10097716
MRDS ID BL20261
Record type Site
Current site name Olinfa Mine

Geographic coordinates

Geographic coordinates: -67.17477, -17.10184 (WGS84)
Elevation 3600
Relative position 5 KM N5E OF ICHOCA

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
Tin Critical Primary

Materials information

Materials Type of material
Cassiterite Ore
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Silicification

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite
    Stratigraphic age (youngest) Late Ordovician
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale

Nearby scientific data

(1) -67.17477, -17.10184
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description On Sw Flank Of A Regional Anticline

Ore body information

  • General form TABULAR
    Strike N 50 W; N 20 W
    Dip 70 SW; 60 SW
    Width 0.6M
  • General form TABULAR
    Strike N 50 W; N 20 W
    Dip 70 SW; 60 SW

Controls for ore emplacement

  • Fractures Transverse To Anticlinal Axis

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Large
Significant No
Year of last production 1991

Mining district

District name Tres Cruces

Ownership information

  • Type Owner-Operator
    Owner Hermanos Steves

Production statistics

  • Year 1981
    Material CONS SN
    Accuracy Accurate
    Description Ap_Grade: ^51% Sn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Conc. Tin Tin 51wt-pct
  • Year 1982
    Material CONS SN
    Accuracy Accurate
    Description Ap_Grade: ^50% Sn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Conc. Tin Tin 50wt-pct

Reserves and resources

  • Type In-situ
    Estimate year 1983
    Total resources 21483000mt ore
    Commodity Subtype Grade units Group Importance Year
    Tin Sn 0.69 wt-pct Tin Major 1983

Comments on the reserve resource information

  • POTENTIAL GEOLOGIC RESERVE
  • PROBABLE

Workings at the site

  • Type of workings Underground
    Length 480M

Comments on the workings information

  • TUNNELS

Comments on development

  • ECON.COM: ABOUT 45% SN RECOVERY USING CRUDE CRUSHING AND SORTING APPARATUS.

Reference information

Bibliographic references

  • Deposit

    GEOBOL, 1983, PROYECTO DE SEMIMECANIZACION MINA OLINFA: GEOBOL INTERNAL REPORT

  • Deposit

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

  • Other Database

    CIMRI

  • Production

    GUSTAVSON ASSOC. (1992)

General comments

Subject category Comment text
Deposit TWO VEIN SYSTEMS WITH CLOTS AND DISSEMINATIONS OF CASSITERITE AND VEINLETS OF PYRITE IN A SPORADICALLY BRECCIATED QUARTZ GUANGE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-91 Barriga Parra, Freddy Servicio Geologic de Bolivia
Updater 01-OCT-93 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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