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  3. Mineral Resource Data System (MRDS)

Las Unidas

Past Producer in Oruro, 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. 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. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10158082
MAS/MILS ID 3350250010
Record type Site
Current site name Las Unidas

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -66.78947, -18.59763 (WGS84)
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
Pyrrhotite Unknown
Siderite Unknown
Sphalerite Unknown

Nearby scientific data

Ore Body (1) -66.78947, -18.59763
ListMap

Economic information

Ore body information

  • Thickness 12M
    Width 50M
    Area 5HA
    Depth to top 0M
    Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Shape of Orebody #2 LENTICULAR
    Primary mode of Origin HYDROTHERMAL
    Secondary mode of Origin OXIDATION
    Primary Ore Control FAULTING
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 PYRITIZATION
    Type of Wallrock Alter. #2 SERICITIC
    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 Past Producer
Commodity type Metallic
Significant No

Mining district

District name Challapacheta

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 Bolivian Government
    Interest 100
    Home office Bolivia
    Year 1976

Workings at the site

  • Type of workings Underground
    Length 3000M
    Overall depth 300M
    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
    Number of Shafts 2
    Length of Inclines (m) 0
    Slope of Inclines 0
    Avg. Length of Adits (m) 500
    Number of Adits 2
    1st Condition of Workings OPEN
    Capacity 50
    Capacity Units MT ORE/DAY
    Unit Production Cost 15
    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. 50.

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-1984 Ljb U.S. Bureau of Mines

Beyond USGS

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

Maps centered on this site