La Troya

Producer in Spain with commodities Lead, 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. Mineral rights holdings
  11. Ownership information
  12. Production statistics
  13. Reserves and resources
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10134365
MAS/MILS ID 4690390001
Record type Site
Current site name La Troya

Geographic coordinates

Geographic coordinates: -2.18134, 43.04911 (WGS84)

Site location context

Political divisions (FIPS codes)

Spain(country)

Europe(continent)

Land(continent)

Geographic areas

Country
Spain

Commodities

Commodity Importance
Lead Primary
Zinc Critical Primary

Materials information

Materials Type of material
Galena Unknown
Sphalerite Unknown

Nearby scientific data

(1) -2.18134, 43.04911

Economic information

Ore body information

  • Thickness 6.9M
    Length 1400M
    Width 80M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 MASS SULFIDE
    Shape of Orebody #1 TABULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FOLDING
    Type of Wallrock Alter. #1 PYRITIZATION
    Date of Last Modification 920430

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Metallic
Significant Yes
Discovery year 1972
Mining method Open Stope - Room and Pillar
Year of first production 1986
Milling method Flotation

Mineral rights holdings

Type of mineral rights Unknown

Ownership information

  • Type Owner
    Owner Exploracion Minera Internacional Espana S. A. (Exminesa)
    Interest 100
    Home office Spain
    Year 1989
  • Type Owner
    Owner Cominco
    Interest 100
    Year 1994

Production statistics

  • Year 1987
    Description Lead Metal In Concentrates 1459 Mt/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Lead Lead 1459mt
  • Year 1987
    Description Zinc Metal In Concentrates 31100 Mt/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 31100mt

Reserves and resources

  • Type In-situ
    Estimate year 0
    Measured 1500000mt ore
    Demonstrated 1500000mt ore
    Total resources 1500000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 13 wt-pct Zinc Major 0
    Lead Pb 1.2 wt-pct Lead Major 0
  • Type In-situ
    Estimate year 0
    Indicated 600000mt ore
    Demonstrated 600000mt ore
    Total resources 600000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 8.1 wt-pct Zinc Major 0
    Lead Pb 0.5 wt-pct Lead Major 0

Comments on the reserve resource information

  • DATA FROM PAH REPORT.

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method ROOM AND PILLAR 10-34
    Percent Recovery 80
    Hardness of Rock UNKNOWN
    Rock Characteristics UNKNOWN
    Rock Support Chars. UNKNOWN
    Mine Support Chars. UNKNOWN
    Length of Inclines (m) 495
    Slope of Inclines 13
    Number of Inclines 2
    1st Condition of Workings OPEN
    Capacity 1154
    Capacity Units MT ORE/DAY
    Operating Days per Year 260
    Operating Shifts per Day 2
    Year of Information 1989

Reference information

Bibliographic references

  • Ownership

    *CRU QUARTERLY MARKET SERVICE, ZINC, JAN. 1994, P. 41.

  • Deposit

    PINCOCK, ALLEN & HOLT REPORT, 1987

General comments

Subject category Comment text
Deposit 1-94: MINE CLOSED MAY 1993. ASSUMED PERMANENT.

Reporter information

Type Date Name Affiliation Comment
Reporter 04-MAY-1992 Difrancesco, Carl A. U.S. Bureau of Mines

Beyond USGS

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