Japo

Plant in Oruro, Bolivia with commodity Tin
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. Production statistics
  15. Reserves and resources
  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 10182502
MAS/MILS ID 3350250008
Record type Site
Current site name Japo

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -66.84948, -18.06435 (WGS84)
Elevation 4420
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

Oruro(province)

Bolivia(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Bolivia Oruro

Commodities

Commodity Importance
Tin Critical Tertiary

Materials information

Materials Type of material
Cassiterite Unknown
Quartz Unknown

Nearby scientific data

Ore Body (1) -66.84948, -18.06435

Economic information

Ore body information

  • Thickness 8M
    Area 5HA
    Depth to top 0M
    Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 SHEAR ZONE
    Shape of Orebody #2 LENTICULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 PYRITIZATION
    Type of Wallrock Alter. #2 INTERM ARGILLIC
    Type of Wallrock Alter. #3 SILICIFICATION
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 5
    Date of Last Modification 780213

Economic information about the deposit and operations

Operation type Underground
Development status Plant
Commodity type Metallic
Significant Yes
Discovery year 1922
Mining method Filled Stopes - Horiz Cut and Fill W/Waste Rock
Plant type Beneficiation (Mill)
Plant subcategory Gravity
Milling method Flotation

Mining district

District name Negro Pabellon

Mineral rights holdings

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

Land status

Ownership category State

Ownership information

  • Type Operator
    Owner Empressa Minera Santa Fe,Japo Seccion
    Home office Bolivia
    Year 1976
  • Type Owner
    Owner Bolivian Government(Comibol)
    Interest 100
    Home office Bolivia
    Year 1976

Production statistics

  • Year 1981
    Period 1968 Thru 1981
    Description 70000 Mt Ore/Yr 1968 Thru 1981 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Tin Tin 70000mt
  • Year 1985
    Period 1982 Thru 1985
    Description 71000 Mt Ore/Yr 1982 Thru 1985 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Tin Tin 71000mt
  • Year 1987
    Period 1986 Thru 1987
    Description 5000 Mt Ore/Yr 1986 Thru 1987 5000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Tin Tin 5000mt
  • Year 1988
    Description Mt Ore/Yr 2000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Tin Tin 2000mt

Reserves and resources

  • Type In-situ
    Estimate year 1964
    Measured 75000mt ore
    Demonstrated 75000mt ore
    Total resources 75000mt ore
    Commodity Subtype Grade units Group Importance Year
    Tin Sn 1.3 wt-pct Tin Trace 1964

Comments on the reserve resource information

  • ETD UPDATE 1,586,000 MT RESOURCES 1-89.

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Capacity 170
    Capacity Units MT ORE/DAY
    Unit Production Cost 15.31
    Units of Production $/MT ORE
    Operating Days per Year 300
    Operating Shifts per Day 1
    Year of Information 1989
  • Type of workings Underground
    Length 2000M
    Overall depth 0M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method PROPOSED
    Mining Method OVERHAND 10-38
    Percent Waste Rock 10
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Rock Characteristics ONE SYSTEM OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING MAY BACK SLAB
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Length of Inclines (m) 0
    Slope of Inclines 0
    Avg. Length of Adits (m) 100
    Number of Adits 5
    1st Condition of Workings OPEN
    Capacity 100
    Capacity Units MT ORE/DAY
    Unit Production Cost 10
    Units of Production $/MT ORE
    Operating Days per Year 300
    Operating Shifts per Day 1
    Year of Information 1976

Reference information

Bibliographic references

  • Deposit

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

  • Deposit

    MINERO DE BOLIVIA, LA PAZ, BOLIVIA, P. 45.

  • Deposit

    1975-76 E/MJ INT.DIR. P212.

  • Deposit

    AHLFIELD,F,&SCHNEIDER-SCHERBINO, 1964,LOS YACIMENTOS MIN.Y

  • Deposit

    ROCARBUROS OF BOLIVIA,BULL.#5, MINISTERIO DE MINAS Y PETRO

General comments

Subject category Comment text
Deposit ROAD IS 25 KM SW TO MACHACAMARCA THEN 25 KM NW TO ORURO. 76-RCD 611-GR.&RES.MATRIX FIGS. FROM AHLFIELD,1964(REF 703). 76-RCD 620-1975 ORE TONNAGE WAS 10000 TO 100000 TONS

Reporter information

Type Date Name Affiliation Comment
Reporter 02-DEC-1992 Ljb U.S. Bureau of Mines

Beyond USGS

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