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  3. Mineral Resource Data System (MRDS)

Yana Mallcu

Plant 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. Ownership information
  11. Production statistics
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10133918
MAS/MILS ID 3350250037
Record type Site
Current site name Yana Mallcu

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -66.46618, -10.46462 (WGS84)

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 Primary

Materials information

Materials Type of material
Cassiterite Unknown

Nearby scientific data

Ore Body (1) -66.46618, -10.46462
ListMap

Economic information

Ore body information

  • Length 800M
    Width 400M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 IRREGULAR
    Type of Orebody #2 STOCKWORK
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FOLDING
    Secondary Ore Control FRACTURING
    Date of Last Modification 860829

Comments on the geologic information

  • THE DEPOSIT CONSISTS OF TWO STOCKWORK ZONES AND TWO PRINCIPLE VEINS. . STOCKWORK ZONE 1. TABLITAS STOCKWORK - 1-5 CM THICK STRINGERS 2. SAN ANTONIO - .5 CM AND LESS THAN STRINGERS PRINCIPLE VEINS GRANDE VEIN - N35W 70SW, .01 - 1.00 M THICK DELGADA VEIN - N40W 68NE, .01 - 1.00 M THICK OTHER MINOR VEINS - MASTHA, RAMO A, ALGERIA, RAMO ESTE AND PICHICATA VEINS.

Economic information about the deposit and operations

Operation type Underground
Development status Plant
Commodity type Metallic
Significant Yes
Discovery year 1900
Mining method Filled Stopes - Horiz Cut and Fill W/Waste Rock
Year of first production 1903
Plant type Beneficiation (Mill)
Plant subcategory Gravity
Milling method Gravity

Ownership information

  • Type Owner-Operator
    Owner Empresa Minera Yana Mallcu Ltda
    Interest 100
    Year 1983

Production statistics

  • Year 1972
    Description Mt Ore/Yr 32700 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 32700mt
  • Year 1973
    Description Mt Ore/Yr 51400 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 51400mt
  • Year 1974
    Description Mt Ore/Yr 24000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 24000mt
  • Year 1975
    Description Mt Ore/Yr 25200 Nt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 25200mt
  • Year 1976
    Description Mt Ore/Yr 28000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 28000mt
  • Year 1977
    Description Mt Ore/Yr 30000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 30000mt
  • Year 1978
    Description Mt Ore/Yr 38000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 38000mt
  • Year 1979
    Description Mt Ore/Yr 32000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 32000mt
  • Year 1980
    Description Mt Ore/Yr 28000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 28000mt
  • Year 1984
    Period 1981-1984
    Description Mt Ore/Yr 1981 Thru 1984 40000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 40000mt
  • Year 1986
    Period 1985-1986
    Description Mt Ore/Yr 1985 Thur 1986 39900 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 39900mt
  • Year 1988
    Period 1987-1988
    Description Mt Ore/Yr 1987 Thru 1988 40900 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 40900mt
  • Year 1990
    Period 1989-1990
    Description Mt Ore/Yr 1989 Thru 1990 40000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tin Tin 40000mt

Comments on the production information

  • A $805.00 SMELTING COST AND A $12.54 MILLING COST PER TONNE ARE INCURRED IN THE PRODUCTION OF PRODUCT A. THERE ARE NO BY-PRODUCTS OF ANY ACTUAL OR POTENTIAL ECONOMIC VALUE PRODUCED.

Comments on the reserve resource information

  • ACCORDING TO BUREAU DATA, THIS DEPOSIT EXHAUASTED HER RESERVES IN 1984; MOST BOLIVIAN OPERATIONS, AS A RULE, DO NOT ESTIMATE RESERVES BEYOND 3-5 YEARS. ALTHOUGH RESERVES ARE OFFICIALLY EXHAUSTED, MOST LIKELY, THERE MAY STILL MINE SN AT THIS DEPOSIT.
  • 1-89 RESOUCE 50,500 MT

Workings at the site

  • Type of workings Underground
    Overall depth 170M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method OVERHAND 10-38
    Percent Recovery 95
    Hardness of Rock HARDROCK FISSURED WITH MODERATE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING WHEN DRY
    Mine Support Chars. TIMBER
    Number of Shafts 1
    1st Condition of Workings OPEN
    Capacity 133
    Capacity Units MT ORE/DAY
    Unit Production Cost 29.76
    Units of Production $/MT ORE
    Operating Days per Year 300
    Operating Shifts per Day 3
    Year of Information 1983
  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method ESTIMATE
    Capacity 133
    Capacity Units MT ORE/DAY
    Unit Production Cost 18.08
    Units of Production $/MT ORE
    Operating Days per Year 300
    Operating Shifts per Day 3
    Year of Information 1989

Reference information

Bibliographic references

  • Deposit

    FOX, D.J., TIN MINING IN BOLIVIA, MINING MAGAZINE, 1972.

  • Deposit

    TAYLOR, R.G., GEOLOGY OF TIN DEPOSITS, ELSEVIER PUBLISHING

  • Deposit

    CO., 1979.

  • Deposit

    VARIOUS COMPANY AND PRIVATE BOLIVIAN SOURCES.

Reporter information

Type Date Name Affiliation Comment
Reporter 03-DEC-1992 Sabin, A. E. U.S. Bureau of Mines

Beyond USGS

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

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