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Helvecia, Mina

Past Producer in La Rioja, Argentina with commodities Lead, Zinc, Silver, Barium-Barite
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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. Reserves and resources
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10004131
MRDS ID AR00261
Record type Site
Current site name Helvecia, Mina
Alternate or previous names Helvecia I, Helvecia Ii, Cerro Urcushum

Geographic coordinates

Geographic coordinates: -68.76059, -29.55857 (WGS84)
Elevation 2900
Relative position 30 KM AL OESTE DE GUANDACOL

Site location context

Political divisions (FIPS codes)

La Rioja(province)

Argentina(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Argentina La Rioja

Comments on the location information

  • HASTA GUANDACOL DESDE LA RIOJA BUEN CAMINO, DESDE GUANDACOL A MINA HUELLA MINERA

Commodities

Commodity Importance
Lead Primary
Zinc Critical Primary
Silver Primary
Barium-Barite Critical Primary

Materials information

Materials Type of material
Calcite Ore
Galena Ore
Jarosite Ore
Malachite Ore

Alteration

  • (Local) Disolucion Y Relleno De Cavidades Karsticas, Metamorfismo De Contacto.

Analytical data

Result PB 7.7-8.5%, ZN 17.1-18.8, AG 83-91 G/T

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Vulcanitas;Vulcanitas
    Rock description Vulcanitas;Vulcanitas
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Conglomerate
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name San Juan Formation;Formacion Volcan;Formacion Panacan
    Rock description San Juan Formation;Formacion Volcan;Formacion Panacan

Nearby scientific data

(1) -68.76059, -29.55857
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Fallamiento Inverso De Bajo Angulo, Rumbo N-S, Inclinacion 25o
Type of structure Local
Structure description Fallas E-O Subverticales

Ore body information

  • General form TABULAR, ESTRATIFORME, IRREGULAR
    Length 600M
    Width 600M

Controls for ore emplacement

  • Discordancia Ordovicica-Carbonifero, Fracturacion Y Plegamiento Posordovicico. Karstificacion.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Significant No
Discovery year 1898
Discoverer Juan J. Tuercke (Desde 1938 A 1967), Turmina (Desde 1967 A 1980)
Year of first production 1945
Year of last production 1983
Production years 35 ANOS

Mining district

District name Guandacol

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Compania Minera Cerro Negro
  • Type Owner
    Owner Compania Minera Cerro Negro. Av. Juan B. Alberdi 634, (5300) La Rioja Y Yamiri, Dalmacio Velez 286.

Production statistics

  • Year 1981
    Accuracy Estimate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Lead Lead 5wt-pct

Reserves and resources

  • Type In-situ
    Estimate year 1991
    Commodity Subtype Grade units Group Importance Year
    Lead Pb 8 wt-pct Lead Major 1991
    Zinc Zn 18 wt-pct Zinc Major 1991
    Silver Ag 80 g/mt Silver Major 1991

Comments on the reserve resource information

  • RECURSOS: 361.000 TN
  • RESERVAS TOTALES: 361.800TN
  • SOLO RESERVAS TENTATIVAS

Comments on the workings information

  • ANTIGUA EXPLOTACION CON MAS DE 100 LABORES SUPERFICIALES IRREGULARES QUE INCLUYEN CANTERAS, TRICHERAS Y DESTAPES CON MINERALIZACION SECUNDARIA EXPUESTA. EL SECTOR DE LABOREO SUBTERRANEO INCLUYE GALERIAS, CORTAVETAS Y CHIMENEAS.LA MINERALIZACION EVIDENCIADA POR LAS LABORES SUBTERRANEAS SE DISTRIBUYE EN UN AREA DE 700 X 700 M, SIGUIENDO LA DISCORDANCIA ORDOVICICO - CARBONIFERO, LA QUE CONSTITUYE UN VERDADERO METALOTECTO DE PRIMERA MAGNITUD, DE EXTENSION REGIONAL. LAS PERFORACIONES EXISTENTES DEMUESTRAN LA PERSISTENCIA DE LA MINERALIZACION EN DICHA EN DICHA POSICION ESTRUCTURAL.

Comments on development

  • TOTAL$: 3.5

Reference information

Bibliographic references

  • Deposit

    DIRECCION NACIONAL DE MINERA Y GEOLOGIA, 1991, REPORT ON THE ARGENTINE MINING SECTOR, ARGENTINE SELECTED MINING PROJECT: BUENOS AIRES

  • Deposit

    ANGELELLI, VICTORIO, 1984, YACIMIENTOS METALIFEROS DE LA REPUBLICA ARGENTINA, VOL. II: BUENOS AIRES, COMISION DE INVESTIGACIONES CIENTIFICAS, P. 393-704.

  • Deposit

    EVALUACION PREVIA FONEM, 1986, CARPETA F0005-00

  • Deposit

    EVALUACION PREVIA GTZ, 1987, CARPETA F0005-01

  • Deposit

    DIRECTORIO DE OPORTUNIDADES DE INVERSION MINERA EN LA REPUBLICA ARGENTINA. SECRETARIA DE MINERIA, BUENOS AIRES, 1993.

  • Production

    ANGELELLI,VICTORIO, 1984, P. 497

  • Reserve-Resource

    EVALUACION PREVIA GTZ, 1987.

General comments

Subject category Comment text
Deposit REQUIERE EXPLORACION MAS DETALLADA ; INFO.SRC : 1 PUB LIT; VEA REGISTRO NO. TC00585

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1991 Cravero, Osvaldo Direccion Nacional de Mineria, Argentina
Updater 01-MAR-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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