La Negra, Mina

Past Producer in San Juan, Argentina with commodities Lead, Silver, Zinc
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Host and associated rocks
  7. Nearby scientific data
  8. Geologic structures
  9. Ore body information
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10004158
MRDS ID AR00297
Record type Site
Current site name La Negra, Mina

Geographic coordinates

Geographic coordinates: -69.4495, -28.79746 (WGS84)
Relative position RODEO 245 KM AL SUR POR HUELLA DE TIERRA

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, ESTACION DE FERROCARRIL MAS PROXIMA A 294 KM (JACHAL), LINEA DE ALTA TENSION EN ANGUALASTO (APROX. 200KM), ESCASA DISPONIBILIDAD DE MANO DE OBRA, CLIMA DESERTICO DE ALTA MONTANA. FOTOGRAFIAS AEREAS NO. 2969-105, FOTOS 3 Y 4.

Commodities

Commodity Importance
Lead Primary
Silver Primary
Zinc Critical Secondary

Analytical data

Result PB 6.2%, ZN 3.9%, AG 670G/T

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Pennsylvanian
    Stratigraphic age (youngest) Pliocene
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite
  • Host or associated Associated
    Rock type Plutonic Rock
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock

Nearby scientific data

(1) -69.4495, -28.79746

Economic information

Geologic structures

Type of structure Regional
Structure description Fallas Y Fracturas De Tension De Rumbo General Nnw-Sse Con Buzamiento Dominante Al Este Hasta Subvertical.

Ore body information

  • General form VETIFORME
    Strike 315/20
    Dip 70NE

Controls for ore emplacement

  • Estructural, Fallamiento

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1957
Discoverer Roger Faraut
Production years TRES ANOS EN FORMA DISCONTINUA

Mining district

District name No. 1 - Las Carachas

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Josue Escudero Desde 1983 A La Fecha - Guemes 612 (S), San Juan. Apoderado: Jorge Antonio Samp
    First year 1985

Comments on the workings information

  • A CIELO ABIERTO: TRINCHERAS Y RAJOS; SUBTERRANEOS: CORTAVETAS, PIQUES, GALERIAS SOBRE VETAS, REALCES, CHIMENEAS. TOTAL 308M.

Comments on development

  • SOLO SE OBSERVAN RUINAS DE UN CAMPAMENTO UBICADO EN LAS INMEDIACIONES DE LA MINA, SOBRE LA MARGEN IZQUIERDA DEL ARROYO DEL MACHO MUERTO.

Reference information

Bibliographic references

  • Deposit

    "LAS CARACHAS" INFORME ING. JUAN MICCHINO Y GEOL. ALFREDO MIOLANO. DPTO. PROVINCIAL DE MINERIA 1970. SAN JUAN

  • Deposit

    RELEVAMIENTO TOPOGRAFICO-GEOLOGICO. CIA. MINERA LA JOSEFINA - LOS PIUQUENES. DPTO. IGLESIA. SAN JUAN. POR GEOL. JORGE MURICI Y EDGARDO MENOYO. UNIVERSIDAD NACIONAL DE SAN JUAN.

  • Deposit

    PROYECTO "MINA LA NEGRA" PCIA. DE SAN JUAN. EVALUACION PREVIA FONEM. DIRECCION NACIONAL DE MINERIA. CARPETA J0024-00 (INEDITO).

General comments

Subject category Comment text
Deposit ESTE YACIMIENTO ESTARIA RELACIONADO GENETICAMENTE CON LOS STOCKS VOLCANICOS DEL TERCIARIO QUE SE PRESENTAN EN LA REGION
Deposit SE RECOMIENDA PLANIFICAR TRABAJOS DE EXPLORACION , TENIENDO EN CUENTA OTROS DESCUBRIMIENTOS REALIZADOS EN LAS ZONAS CERCANAS A LA NEGRA, COMO : SALICA, BORDO I, II Y III QUE PODRIAN INCREMENTAR LAS RESERVAS Y MEJORAR LA CALIDAD DEL PROYECTO ; INFO.SRC : 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1985 Cevinelli H., Pena G. 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.