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Josefina Tungsten Mine

Past Producer in Mendoza, Argentina with commodity Tungsten
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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. Geologic structures
  12. Ore body information
  13. Economic information about the deposit and operations
  14. Ownership information
  15. Production statistics
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10061424
MRDS ID TC34302
Record type Site
Current site name Josefina Tungsten Mine
Alternate or previous names San Pablo Mine. Veins: Primera, Rica, Josefina, Blanca, Sur, Marchant

Geographic coordinates

Geographic coordinates: -69.48281, -33.48079 (WGS84)
Elevation 2150
Relative position ABOUT 100 KM S OF MENDOZA

Site location context

Political divisions (FIPS codes)

Mendoza(province)

Argentina(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Argentina Mendoza

Comments on the location information

  • ON EASTERN SLOPE OF CORDON DE PORTILLO

Commodities

Commodity Importance
Tungsten Critical Primary

Materials information

Materials Type of material
Marcasite Ore
Molybdenite Ore
Sphalerite Ore
Wolframite Ore
Fluorite Gangue
Muscovite Gangue
Quartz Gangue

Alteration

  • (Local) Premineral Fault Contains Quartz-Chlorite Sulfide

Mineral occurrence model information

Model code 46
USGS model code 15a
Deposit model name W veins

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Stratigraphic age (youngest) Late Permian

Nearby scientific data

(1) -69.48281, -33.48079
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Pre-Mineral Fault Striking N, Dip 45w And Post-Mineral Fault Striking N, Dip 45w Divides Area In 3 Blocks. Eastern Block Contains Most Veins (East Of Pre-Mineral Fault); Minor Faults Offset Veins Up To 50 M Most N25w, 45 E Or W

Ore body information

  • Strike N80-85E(1), N70W(2), N80-90E(3), N60W(4), N65W(5), N70W(6)
    Dip 50-70S(1), 60-65S(2), 50NE(4), 50NE(5), 45-50S(6)
    Thickness 0.05M
    Length 200M
  • Dip 50-70S(1), 60-65S(2), 50NE(4), 50NE(5), 45-50S(6)
    Thickness 0.02M
    Length 65M
  • Dip 50-70S(1), 60-65S(2), 50NE(4), 50NE(5), 45-50S(6)
    Thickness 0.03M
    Length 50M
  • Dip 50-70S(1), 60-65S(2), 50NE(4), 50NE(5), 45-50S(6)
    Thickness 0.02M
    Length 65M
  • Dip 50-70S(1), 60-65S(2), 50NE(4), 50NE(5), 45-50S(6)
    Thickness 0.02M
    Length 120M
  • Dip 50-70S(1), 60-65S(2), 50NE(4), 50NE(5), 45-50S(6)
    Thickness 0.01M
    Length 30M

Comments on the geologic information

  • MICAS TEND TO REPLACE GARNETS IN THE SCHISTS; LINEATION CAUSED BY QUARTZ LENSES AND FOLIATION BY MICAS; FOLDS, CRENULATIONS

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1937
Year of first production 1938

Ownership information

  • Type Owner-Operator
    Owner Compania Minera De San Pablo
    First year 1940

Production statistics

  • Year 1938
    Material W CON
    Description Ap_Grade: ^65% Wo3 Or Greater
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Wo3 Conc. Tungsten Tungsten 65wt-pct
  • Year 1939
    Material W CON
    Description Ap_Grade: ^65% Wo3 Or Greater
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Wo3 Conc. Tungsten Tungsten 65wt-pct
  • Year 1940
    Material W CON
    Description Ap_Grade: ^65% Wo3 Or Greater
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Wo3 Conc. Tungsten Tungsten 65wt-pct
  • Year 1941
    Material W CON
    Description Ap_Grade: ^65% Wo3 Or Greater
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Wo3 Conc. Tungsten Tungsten 65wt-pct
  • Year 1942
    Material W CON
    Description Ap_Grade: ^65% Wo3 Or Greater
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Wo3 Conc. Tungsten Tungsten 65wt-pct
  • Year 1942
    Period 1938-1942
    Material W CON
    Description Cp_Grade: ^65% Wo3 Or Greater
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Wo3 Conc. Tungsten Tungsten 65wt-pct
  • Year 1943
    Material W CON
    Description Ap_Grade: ^65% Wo3 Or Greater
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Wo3 Conc. Tungsten Tungsten 65wt-pct
  • Year 1944
    Period 1943-1944
    Material W CON
    Description Cp_Grade: ^65% Wo3 Or Greater
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Wo3 Conc. Tungsten Tungsten 65wt-pct
  • Year 1944
    Material W CON
    Description Ap_Grade: ^65% Wo3 Or Greater
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Wo3 Conc. Tungsten Tungsten 65wt-pct
  • Year 1953
    Period 1945-1953
    Material W CON
    Description Cp_Grade: ^65% Wo3 Or Greater
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Wo3 Conc. Tungsten Tungsten 65wt-pct

Comments on the production information

  • GRADE OF ORE IN MINERAL BLOCKS GREATER THAN 0.5% AND LESS THAN 1% WO3.

Comments on the reserve resource information

  • RESERVE ESTIMATE CONSISTS OF 10,370 MT INDICATED AND 11,360 MT INFERRED ON JOSEFINA VEIN, 350 MT INDICATED AND 750 MT INFERRED ON PRIMERA VEIN, 2800 MT INDICATED AND 550 MT INFERRED ON RICA VEIN.

Comments on the workings information

  • ADITS, RAISES, PITS

Comments on development

  • ; MILL.CAP : 50-75 TONS/DAY(1941)

Reference information

Bibliographic references

  • Deposit

    SMITH, W.C., AND GONZALEZ, E.M., 1947, TUNGSTEN INVESTIGATIONS IN THE REPUBLIC OF ARGENTINA, 1942-1943: U.S. GEOLOGICAL SURVEY BULLETIN 954-A, P. 12-26.

  • Deposit

    ANGELELLI, V., 1984, YACIMIENTOS METALIFEROUS DE LA REPUBLICA ARGENTINA: PROVINCIA DE BUENOS AIRES COMISION DE INVESTIGACIONES CIENTIFICAS, LA PLATA, V. 2, P. 653-654.

  • Other Database

    CIMRI

  • Production

    SMITH AND GONZALEZ (1947)

General comments

Subject category Comment text
Deposit SIX VEINS IN AREA OF 500 SQ METERS; VEINS ARE FISSURE FILLINGS; JOSEFINA VEIN (1): MINED ON 10 LEVELS, ALL IN 57 M OF DEPTH, MINOR FAULTS DIVIDE VEIN IN SEGMENTS 30-50 M LONG; PRIMERA VEIN (2): 180 M N OF JOSEFINA; RICA VIEN (3) (90 METERS N OF JOSEFINA) EXPLORED IN ADITS AND CROSS-CUTS, FAULTED IN 10 M SEGMENTS, AVERAGE WO3 CONTENT LESS THAN 0.5%; BLANCA VEIN (4) APPEARS TO BE LOW GRADE; SUR VEIN (5) MINED ON 5 LEVELS (230 M S28E OF JOSEFINA), SUR AND BLANCA MAY BE THE SAME VEIN OFFSET BY FAULTING; MARCHANT VEIN (6): (350 NE OF JOSEFINA), NW FAULTS DIVIDE VEIN INTO SEGMENTS, 2 OF WHICH WERE MINED.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1992 Page, Norman 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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