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Yanzi Y Cristal Blenda, Minas

Past Producer in San Juan, Argentina with commodities Lead, Zinc, Silver
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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. Production statistics
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10101042
MRDS ID AR00293
Record type Site
Current site name Yanzi Y Cristal Blenda, Minas
Alternate or previous names Bella Blenda, Argentina Y Juan Luis

Geographic coordinates

Geographic coordinates: -67.28415, -31.43912 (WGS84)
Elevation 605
Relative position MARAYES 16KM, CHEPES 80KM.

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 REGULAR, DESNIVELES MODERADOS, LINEA DE ALTA TENSION EN CHEPES 12.8KW, CLIMA DESERTICO, DIPONIBILIDAD DE MANO DE OBRA, FOTOS AEREAS NO. 222-55 (1117-1118-1119)

Commodities

Commodity Importance
Lead Primary
Zinc Critical Primary
Silver Primary

Comments on the commodity information

  • ZONA PRIMARIA: BLENDA, GALENA, PIRITA, ARSENOPIRITA, MAGNETITA. ZONA DE OXIDACION: AZUFRE NATIVO, OXIDO DE FE Y MN, CERUSITA Y YESO. PARAGENESIS: CUARZO, HEMATITA, ARSENOPIRITA, PIRITA, BLENDA, TERAEDRITA, GALENA Y CUARZO.

Materials information

Materials Type of material
Galena Ore
Calcite Gangue

Alteration

  • (Local) Cerisittica, Filitica.

Analytical data

Result PB 12.4%, AG 100G/TON, ZN 8%

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Late Permian
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate)
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Gabbro
  • Host or associated Host
    Rock type Metamorphic Rock > Schist
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -67.28415, -31.43912
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Bloques Meridionales Alineados N-S, Limitados Por Fallas Inversas.
Type of structure Local
Structure description Fallas Menores N-S De 25 A 30 De Inclincion, Fallas E-W Subverticales.

Ore body information

  • General form VETIFORME, CON CLAVOS
    Strike N-S
    Dip SUBVERTICAL

Controls for ore emplacement

  • Estructural Y Litologico

Comments on the geologic information

  • BASAMENTO METAMORFOCO DE ALTO GRADO COMPUSTO POR ESQUISTOS ANFIBOLICOS, ANFIBOLITAS, GNEISES Y CALIZAS CRISTALINAS. PLEGAMIENTO DISARMONICO EN CALIZA A ESCALA MESOSCOPICA, EXISTEN PLIEGUES MENORES DE CIZALLA DE ROCAS METAMORFICAS CON CATACLASIS.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1850
Discoverer Juan O.Campbell
Year of first production 1930
Year of last production 1978
Production years 48

Mining district

District name Marayes

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Idem
  • Type Owner
    Owner Yanzi C.I.M.S.A.
    Home office Calle Entre Rios 277 (N), San Juan

Production statistics

  • Year 1948
    Period 48
    Material AG
    Accuracy Estimate
    Description Cp_Grade: ^Concentrado 0,0485%
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Conc. Silver Silver 0wt-pct
  • Year 1948
    Period 48
    Material PB
    Accuracy Estimate
    Description Cp_Grade: ^Concentrado 14.2%
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Conc. Lead Lead 14wt-pct
  • Year 1948
    Period 48
    Material ZN
    Accuracy Estimate
    Description Cp_Grade: ^Concentrado 16%
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Conc. Zinc Zinc 16wt-pct

Comments on the production information

  • PRODUCCION PARALIZADA POR MERCADOS Y Y PROBLEMAS LEGALES

Comments on the workings information

  • CINCO NIVELES CORTOS DESARROLLADOS A PARTIR DE UN PIQUE INTERNO DE 50M. PIQUE DE 11 M DE PROFUNDIDAD Y ESTOCADA DE 4 M Y CORTA VETA DE 8 M CON DOS ESTOCADAS EN MINA BELLA BLENDA. CORTAVETAS 180M, GALERIAS Y ESTOCADAS 50 M EN MINA CRISTAL BLENDA. DESTAPES EN TODAS LAS PERTENENCIAS.

Comments on development

  • SISTEMA DE EXPLOTACION: REALCE SOBRE ROCA Y CORTE Y RELLENO. EXTRACCION POR GUINCHE MECANICO EN PIQUE INTERNO Y DECAUVILLE. MAQUINARIA: TRITURADORA, MOLINO A ROLOS, MARIMATA DE DOS CUERPOS, COMPRESOR, GUINCHE, 500M DE DECAUVILLE, SEIS VAGONETAS, BOMBA DE ALTA PRESION, GRUPO ELECTROGENO DE 30KW, EQUIPO DE RADIO, CAMPAMENTO PARA 15 PERSONAS.

Reference information

Bibliographic references

  • Deposit

    EVALUACION PREVIA (FONEM), MINAS YANZI Y CRISTAL BLENDA. CARPETA J0022-00. DIRECCION NACIONAL DE MINERIA.(INEDITO)

  • Deposit

    EVALUACION PREVIA (GTZ), GRUPO YANZI, CARPRTA J0022-01, DIR.NAC.MINERIA (INEDITO)

  • Production

    EVALUACION PREVIA (FONEM) CARPETA J0022-00

General comments

Subject category Comment text
Deposit INSTALACIONES: CAMPAMENTO MINERO PARA 15 PERSONAS, TALLER PARA REPARACIONES MENORES Y HERRAMIENTAS. MAQUINARIA: TRITURADORA DE MANDIBULA, MOLINO A BOLOS, MARITATA MECANICA DE DOS CUERPOS, COMPRESOR, GUINCHE NEUMATICO, CANERIAS, TANQUES PULMON, DECAUVILLE, VAGONETAS, BOMBA DE ALTA PRESION, GRUPO ELECTROGENO, EQUIPO RADIOTRANSMISOR.
Deposit EXISTEN DOS HIPOTESIS GENETICAS SOBRE ESTOS YACIMIENTOS, UNA SOSTIENE QUE SON DE ORIGEN HIDROTERMAL (MESOTERMAL), MIENTRAS QUE LA OTRA SOSTIENE QUE SON DE METAMORFISMO DE CONTACTO. AMBAS TEORIAS TIENEN ARGUMENTOS A FAVOR Y ES NECESARIO PROFUNDIZAR EL ESTUDIO CALCOGRAFICO EN FORMA SISTEMATICA PARA DEFINIR SU ORIGEN. ; INFO.SRC : 2 UNPUB REPT
Deposit Discovery Year: SIGLO XIX

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1986 Rojo, Carlos A. (Cardo, Ricardo) Direccion Nacional de Mineria, Argentina
Updater 01-MAY-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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