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La Josefina

Past Producer in San Juan, Argentina with commodities Copper, Gold, Silver, Lead, Zinc
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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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10097607
MRDS ID AR00322
Record type Site
Current site name La Josefina

Geographic coordinates

Geographic coordinates: -69.58005, -31.20579 (WGS84)
Relative position VILLANUEVA A 33 KM AL ESTE

Site location context

Political divisions (FIPS codes)

San Juan(province)

Argentina(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Argentina San Juan

Comments on the location information

  • ACCESO POR HUELLA, ALTA TENSION EN PUCHUZUN (8KM), MANO DE OBRA SEMIESPECIALIZADA EN PUCHUZUM, VILLA NUEVA, CALINGASTA. AGUA EN PUCHUZUM (8 KM), CLIMA CONTINENTAL DESERTICO, TOPOGRAFIA SUAVE.

Commodities

Commodity Importance
Copper Primary
Gold Primary
Silver Secondary
Lead Secondary
Zinc Critical Secondary

Comments on the commodity information

  • EXISTEN TEXTURAS DE REEMPLAZO E INTERCRECIMIENTOS DE COVELINA POR SUSTITUCION. LA CALCOPIRITA ESTA ASOCIADA A LA GALENA Y LA ESPECULARITA EN PEQUENOS OJOS Y RELLENO DEL BORDE DE LOS CLASTOS. PARAGENESIS: PIRITA Y CUARZO, GALENA-ESPECULARITA-CALCOPIRITA, FORMACION DE COVELINA A EXPENSAS DE LOS SULFUROS, DEPOSICION DE CUARZO Y FORMACION DE LIMONITAS.

Materials information

Materials Type of material
Galena Ore

Alteration

  • (Local) Propilitica

Analytical data

Result VARIOS ANALISIS: AG (G/T) 10.2
Result 2.6
Result 8.4
Result 10.8
Result 65. CU (%) 0.66
Result 10.21
Result 0.23
Result 0.13
Result 4. PB (%) 0.027
Result 0.1
Result 0.57
Result 0.33
Result 0.11

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Grupo Choiyoi;Permotriasico
    Rock description Grupo Choiyoi;Permotriasico
    Stratigraphic age (youngest) Pennsylvanian
    Stratigraphic age (youngest) Early Triassic

Nearby scientific data

(1) -69.58005, -31.20579
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Complejo Sedimentario Plutonico Plegado Y Fallado
Type of structure Local
Structure description Anticlinal Fallado De Rumbo N-S,Buzamiento 40w. Fallamiento Inverso E-W Buzamiento 60w A Subvertical. La Estructura Mineralizada Tiene Control Tectonico Subordinado Al Litologico. Rumbo E-W Es El Mineralizado Y N-Nw Controla Subordinadamente El Avenamiento

Ore body information

  • General form RELLENO DE FISURAS
    Strike VETA NO. 1 E-W
    Dip 90

Controls for ore emplacement

  • Estructural, Fracturas.

Comments on the geologic information

  • METAMORFISMO REGIONAL DE GRADO BAJO A MEDIO AFECTA A LAS SEDIMENTITAS. METAMORFISMO DE CONTACTO AFECTA A LAS PLUTONITAS

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1950
Discoverer Francisco Aguirrezabala
Year of last production 1975
Production years 20 EN FORMA INTERMITENTE

Mining district

District name No. 6

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Dario Becerra (Desde 1978, Concesion Caduca), Callejon Molina 99, Rivadavia - San Juan

Comments on the production information

  • PRODUCCION INTERMITENTE DURANTE VEINTE ANOS. SIN DATOS DE PRODUCCION

Comments on the reserve resource information

  • RECURSOS: 4000 TN
  • RESERVAS TOTALES: 6500 TN
  • RESERVAS: 2500 TN

Workings at the site

  • Type of workings Surface/Underground
    Area 12HA

Comments on the workings information

  • TIENE PEQUENOS DESARROLLOS MINEROS EN FORMA DE RAJOS Y PIQUES ACHIFLONADOS.

Comments on development

  • ECON.COM: YACIMIENTO SIN POSIBILIDADES ECONOMICAS ; MILL.CAP : 2500 TN

Reference information

Bibliographic references

  • Deposit

    EVALUACION PREVIA FONEM 1986. CARPETA J0010-00. DIR. NAC. MINERIA. INEDITO

  • Reserve-Resource

    EVALUACION PREVIA FONEM 1986 CARPETA J0010-00

General comments

Subject category Comment text
Deposit SE TRATA DE UN YACIMIENTO HIPO A MESOTERMAL CON ALTERACION SUPERGENICA CON DESARROLLO DE ZONA DE OXIDACION POCO IMPORTANTE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1986 Rojo, Carlos A. Direccion Nacional de Mineria, Argentina
Updater 01-AUG-1993 Diego Silva Nieto Direccion Nacional de Mineria, Argentina

Beyond USGS

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

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