Toldos

Prospect in Potosi, Bolivia with commodity Silver
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10279646
MAS/MILS ID 3350350048
Record type Site
Current site name Toldos

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -67.19947, -21.20756 (WGS84)
Elevation 4030
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

Potosi(province)

Bolivia(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Bolivia Potosi

Commodities

Commodity Importance
Silver Tertiary

Materials information

Materials Type of material
Arsenopyrite Unknown
Barite Unknown
Chalcopyrite Unknown
Dolomite Unknown
Galena Unknown
Polybasite Unknown
Pyrargyrite Unknown
Pyrite Unknown
Quartz Unknown
Sphalerite Unknown

Nearby scientific data

Ore Body (1) -67.19947, -21.20756

Economic information

Ore body information

  • Area 3HA
    Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Shape of Orebody #2 PIPELIKE
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Secondary Ore Control IGNEOUS
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 PYRITIZATION
    Type of Wallrock Alter. #2 SILICIFICATION
    Type of Wallrock Alter. #3 PROPYLITIC
    Minimum Depth to Top 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 3
    Date of Last Modification 780213

Economic information about the deposit and operations

Operation type Underground
Development status Prospect
Commodity type Metallic
Significant No

Mining district

District name San Cristobal

Mineral rights holdings

Type of mineral rights State Lease
Type of mineral rights Minerals Only

Land status

Ownership category State

Ownership information

  • Type Owner-Operator
    Owner Empressa Minera Unificado S. A.
    Interest 100
    Home office Bolivia
    Year 1975

Reference information

Bibliographic references

  • Deposit

    AHLFELD, F., 1954, LOS YACIMIENTOS MINERALES DE BOLIVIA: BAN

  • Deposit

    MINERO DE BOLIVIA, LA PAZ, PG. 164-165, PRINTED IN BILBAO, S

  • Deposit

    IMPRENTA INDUSTRIAL S. A., IN SPANISH.

  • Deposit

    ENGINEERING AND MINING JR., 1954, INTERN. DIRECTORY OF MININ

  • Deposit

    MCGRAW HILL, N. Y., P. 213

General comments

Subject category Comment text
Deposit LOCATION FROM AHLFELD MAP, 1954. EMJ SAYS MINE REOPENED 1972 SAMPLING.-AHLFIELD STATES PROBLEM OF CO2 &H25 GASES IN THE M 1954.

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-84 Ljb U.S. Bureau of Mines

Beyond USGS

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