Las Carachas, Distrito

Past Producer in San Juan, Argentina with commodities Lead, Silver, Tin, Zinc, Copper, Gold
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. Reserves and resources
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10004129
MRDS ID AR00213
Record type Site
Current site name Las Carachas, Distrito
Alternate or previous names Minas: La Argentina, Sur, San Mateo, La Josefina, Maruja.

Geographic coordinates

Geographic coordinates: -69.4495, -28.79746 (WGS84)
Relative position RODEO (DTO. IGLESIA) 244KM POR CAMINO DE TIERRA Y HUELLA MINERA

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

  • CLIMA DESERTICO DE ALTA MONTANA, NIEVE DE MAYO A OCTUBRE. FOTOGRAFIA AEREA NO. 2969-105, FOTOS 3 Y 4.

Commodities

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

Analytical data

Result PB 10.36% , AG 0.520 KG/T, SE HAN DETECTADO VALORES DE ORO EN ALGUNAS MUESTRAS ENTRE 0.26 Y 3.6 G/TON

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pennsylvanian
    Stratigraphic age (youngest) Pennsylvanian
  • 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 Inversas, Rumbo Predominante N-S, Juegos Secundarios De Rumbo Nw-Se Y Ne-Sw.

Ore body information

  • General form LENTICULAR
    Strike LA ARGENTINA (A) 310/320, SAN MATEO 305/340, SAN MATEO (ABAJO) 300/310, JOSEFINA 305/340.
    Dip LA ARGENTINA 60/85NE, SAN MATEO 50/55NE,

Controls for ore emplacement

  • Fallas

Comments on the geologic information

  • LA MINERALIZACION SE PRESENTA EN FORMA CONCORDANTE A LA ESTRUCTURA DE RUMBO NO-SE Y CON BUZAMIENTOS DE 10 A 70 NE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1950
Discoverer Roge Faraut
Year of last production 1971
Production years APROXIMADAMENTE 10 ANOS DISCONTINUOS

Mining district

District name Las Carachas

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Josue Escudero, Calle Guemes 512 (S), San Juan. (Apoderado: Jorge Antonio Sampietro)

Reserves and resources

  • Type In-situ
    Estimate year 1986
    Total resources 5000mt ore
    Commodity Subtype Grade units Group Importance Year
    Lead Pb 12 wt-pct Lead Major 1986
    Silver Ag 0.52 g/mt Silver Major 1986

Comments on the reserve resource information

  • INDICADAS 12.000 TON 12% PB (1440T FINO), 0.52 G/T AG (6.24 FINO)

Workings at the site

  • Type of workings Underground
    Area 84HA
    Length 366.5M
    Overall depth 100M

Comments on the workings information

  • TRINCHERAS Y RAJOS A CIELO ABIERTO. SUBTERRANEO; RAJOS ABIERTOS, PIRQUINEO IRRACIONAL EN LOS SECTORES MINERALIZADOS, SIN LA ADOPCION DE NINGUN METODO CONVENCIONAL DE EXPLOTACION. LA EXTRACCION FUE SEMIMECANIZADA MEDIANTE EL USO DE VAGONETAS SOBRE DECAUVILLE.

Comments on development

  • OBRAS DE INFRAESTRUCTURA INSUFICIENTE, FALTA DE ORIENTACION TECNICA, MUCHOS LABOREOS EN ESTERIL.

Reference information

Bibliographic references

  • Deposit

    YACIMIENTO LAS CARACHAS, 1970. INF. NO. 1 , MUCHINO JUAN E., MIOLANO ALFREDO, DEPARTAMENTO PROVINCIAL DE MINERIA.

  • Deposit

    RELEVAMIENTO TOPOGRAFICO - GEOLOGICO, 1958. MURICI, JORGE; MENOYO EDGARDO. CIA. MINERA LA JOSEFINA.

  • Deposit

    GEOLOGIA DE SAN JUAN, 1984. APARICIO E. UNIVERSIDAD NACIONAL DE SAN JUAN.

  • Reserve-Resource

    CARPETA EVALUACION PREVIA J0021-00

General comments

Subject category Comment text
Deposit RELACIONADO GENETICAMENTE A STOCKS VOLCANICOS DE EDAD TERCIARIA.
Deposit EL BASAMENTO CRISTALINO DE LA REGION ESTA CONSTITUIDO POR SEDIMENTITAS REFERIDAS AL CARBONIFERO, INTRUIDAS POR GRANITOS, DIORITAS Y PORFIRITAS DE LA ASOCIACION PLUTONICA-VOLCANICA VARISICA QUE AFLORAN AL N - NO - SO Y O DEL DISTRITO. ASENTADAS SOBRE ELLAS SE ENCUENTRAN LAS ANDESITAS Y DACITAS DE EDAD TERCIARIO SUPERIOR. LA ESTRUCTURA ES EN BLOQUES LIMITADOS POR FALLAS INVERSAS DE RUMBO DOMINANTE NS, TAMBIEN SE RECONOCEN JUEGOS DE FALLAS DE RUMBO NO-SE Y OTRO NE-SO. ; INFO.SRC : 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1986 Cevinelli, H. - Petrelli, H. Direccion Nacional de Mineria, Argentina
Updater 01-JAN-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.