Bolivar

Prospect in Potosi, Bolivia with commodities Lead, Silver, Tin, Zinc
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. Reserves and resources
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10157870
MAS/MILS ID 3350350049
Record type Site
Current site name Bolivar

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -66.40945, -21.75755 (WGS84)
Elevation 4700
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
Lead Secondary
Silver Primary
Tin Critical Primary
Zinc Critical Primary

Materials information

Materials Type of material
Bismuth Unknown
Chalcopyrite Unknown
Pyrite Unknown
Siderite Unknown

Nearby scientific data

Ore Body (1) -66.40945, -21.75755

Economic information

Ore body information

  • Strike N90E
    Dip 90N
    Length 45M
    Width 70M
    Area 2HA
    Depth to top 0M
    Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Secondary Ore Control IGNEOUS
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 INTERM ARGILLIC
    Type of Wallrock Alter. #2 PROPYLITIC
    Type of Wallrock Alter. #3 PYRITIZATION
    Strike And Dip N90E:90N
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 2
    Date of Last Modification 780213

Economic information about the deposit and operations

Operation type Underground
Development status Prospect
Commodity type Metallic
Significant No
Mining method Filled Stopes - Horiz Cut and Fill W/Tailings
Year of first production 1975
Milling method Flotation

Mining district

District name Cerro Bonete

Mineral rights holdings

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

Land status

Ownership category State

Ownership information

  • Type Owner
    Owner Corporacion Minera De Bolivia (Comibol)
    Interest 100
    Home office Bolivia
    Year 1989

Comments on the production information

  • MOST CONTAINED SILVER IS IN THE LEAD CONCENTRATE.

Reserves and resources

  • Type In-situ
    Estimate year 1992
    Indicated 2000000mt ore
    Demonstrated 2000000mt ore
    Total resources 2000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 350 g/mt Gold 1992
    Lead Pb 1.6 wt-pct Lead Minor 1992
    Zinc Zn 16 wt-pct Zinc Major 1992

Comments on the reserve resource information

  • INFORMATION FROM LITERATURE AND B-H.

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method HORIZ CUT & FILL W/TAILINGS 10-60
    Percent Recovery 95
    Capacity 1000
    Capacity Units MT ORE/DAY
    Operating Days per Year 300
    Year of Information 1989

Reference information

Bibliographic references

  • Deposit

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

  • Deposit

    MINERO DE BOLIVIA, LA PAZ, PG. 140-142, PRINTED IN BILBAO, S

  • Deposit

    IMPRENTA INDUSTRIAL S. A., IN SPANISH.

  • Deposit

    ENGINEERING AND MINING JR., 1975, INTERN. DIRECTORY OF MININ

  • Deposit

    MCGRAW HILL, N. Y., P. 213.

General comments

Subject category Comment text
Deposit MAIN ORE MINERAL IS BENJAMINITE. LOCATION FROM AHLFELD MAP, EMJ, 1975, SAYS 80 EMPLOYED, MINE AND MILL UNDER DEVELOPMENT 1975, WILL HAVE CAPAC. OF 1000 TO 10000 TPY ORE, OR 150 TPD.

Reporter information

Type Date Name Affiliation Comment
Reporter 21-DEC-94 Difrancesco, Carl A. U.S. Bureau of Mines

Beyond USGS

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