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Langdal Mine

Producer in Sweden with commodities Zinc, Lead, Sulfur-Pyrite, Copper, Silver, Gold
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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. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  15. Production statistics
  16. Reserves and resources
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10073125
MRDS ID W018964
Record type Site
Current site name Langdal Mine

Geographic coordinates

Geographic coordinates: 20.26989, 64.83197 (WGS84)
Relative position 8 KM SW OF BOLIDEN.

Site location context

Political divisions (FIPS codes)

Sweden(country)

Europe(continent)

Land(continent)

Geographic areas

Country
Sweden

Commodities

Commodity Importance
Zinc Critical Primary
Lead Primary
Sulfur-Pyrite Primary
Copper Primary
Silver Secondary
Gold Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Pyrite Ore
Sphalerite Ore

Alteration

  • (Local) Sericitization And Chloritization Of Wall Rock

Analytical data

Result GRIP REPORTS AVERAGE ORE COMPOSITION OF 1.9 G/T AU, 154 G/T AG, 0.1% CU, 5.9% ZN, 1.8% PB, 12% S.

Mineral occurrence model information

Model code 184
USGS model code 28a
Deposit model name Massive sulfide, kuroko
Mark3 model number 93

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Felsic Metamorphic Rock > Keratophyre
    Rock unit name Quartz Keratophyre Tuff, Dacite Tuff, Dacite
    Rock description Quartz Keratophyre Tuff, Dacite Tuff, Dacite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite

Nearby scientific data

(1) 20.26989, 64.83197
ListMap

Economic information

Ore body information

  • General form LENS OR SLAB SHAPED
    Plunge 40
    Plunge direction SSE

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1937
Year of first production 1967

Mining district

District name Skellefte Dist.

Ownership information

  • Type Owner-Operator
    Owner Boliden Ab

Production statistics

  • Year 1969
    Period 1965-1969
    Material ORE
    Accuracy Accurate
    Description Cp_Grade: ^1.5 G/T Au, 154 G/T Ag, 0.18% Cu, 6.49% Zn, 2.13% Pb, 11.8% S
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Sulfur Sulfur 12wt-pct
    Major Ore Lead Lead 2wt-pct
    Major Ore Zinc Zinc 6wt-pct
    Minor Ore Copper Copper 0wt-pct
    Trace Ore Silver Silver 154g/mt
    Ore Gold Gold 2g/mt
  • Year 1974
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^0.18% Cu, 6.52% Zn, 2.35% Pb
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Lead Lead 2wt-pct
    Major Ore Zinc Zinc 7wt-pct
    Minor Ore Copper Copper 0wt-pct
  • Year 1975
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^6.3 % Zn, 2.2 % Pb
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Lead Lead 2wt-pct
    Major Ore Zinc Zinc 6wt-pct

Reserves and resources

  • Type In-situ
    Estimate year 1983
    Total resources 753000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 6.5 wt-pct Zinc Major 1983
    Lead Pb 2.1 wt-pct Lead Major 1983
    Copper Cu 0.18 wt-pct Copper Major 1983
    Silver Ag 154 g/mt Silver Minor 1983
    Gold Au 1.5 g/mt Gold Minor 1983

Comments on development

  • ECON.COM: FOR MILL SIZE SEE RENSTROM MINE

Reference information

Bibliographic references

  • Deposit

    RICKARD, D. T., ZWEIFEL, HANS, 1975, GENESIS OF PRECAMBRIAN SULFIDE ORES, SKELLEFTE DIST., SWEDEN; ECON. GEOL. V 70 NO 2 P. 255 - 274

  • Deposit

    GRIP, E., 1950, LEAD AND ZINC DEPOSITS IN NORTHERN SWEDEN; INT. GEOL. CONG. 18TH, REPT 7 P 362 - 370

  • Deposit

    MOSIER AND OTHERS, 1983, GEOLOGIC AND GRADE-TONNAGE INFORMATION ON VOLCANIC-HOSTED COPPER-ZINC-LEAD MASSIVE SULFIDE DEPOSITS: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 83-89, 78 P.

  • Deposit

    GRIP, E., 1978, SWEDEN, IN BOWIE, S.H.U., KVALHEIM, A., AND HASLAM, H.W., EDS., MINERAL DEPOSITS OF EUROPE, VOLUME 1: NORTHWEST EUROPE: LONDON, THE INSTITUTION OF MINING AND METALLURGY AND THE MINERALOGICAL SOCIETY, P. 93-108.

  • Deposit

    VOKES, F.M., INTRODUCTION, IN BOWIE, S.H.U., KVALHEIM, A., AND HASLAM, H.W., EDS., MINERAL DEPOSITS OF EUROPE, VOLUME 1, NORTHWEST EUROPE: LONDON, THE INSTITUTION OF MINING AND METALLURGY AND THE MINERALOGICAL SOCIETY, P. 1-38.

  • Deposit

    E/MJ INTERNATIONAL DIRECTORY, 1976, P. 286.

  • Production

    EMJ, 1976; VOKES, 1978; GRIP, 1978

  • Reserve-Resource

    DEPOSIT SIZE ESTIMATE FROM MOSIER AND OTHERS, 1983.

General comments

Subject category Comment text
Deposit 3 EN ECHELON LENSES IN CONTACT ZONE BETWEEN QUARTZ PORPHYRY AND OVERLYING SEDIMENT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1976 Schruben, Paul G. U.S. Geological Survey
Updater 01-DEC-1987 Orris, Greta J. U.S. Geological Survey

Beyond USGS

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

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