Geoelectric exploration of the Purísima-Rumicruz district, Jujuy province, Argentina

Purísima-Rumicruz district consists of several polymetallic veins, rich in copper and lead. The veins have a breccia texture and are located in shear bands, with locally high concentrations of sulfides in a carbonatic gangue. The host rock of the veins consists of a black shale sequence with thin le...

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Detalles Bibliográficos
Autores principales: López, Luciano, Echeveste, Horacio José, Tessone, Mario Osvaldo Rafael, Alperín, Marta, Etcheverry, Ricardo Oscar
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Ciencias Naturales
Geología
Argentina
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/37790
http://www.hindawi.com/journals/ijge/2012/371059/
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-37790
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Geología
Argentina
spellingShingle Ciencias Naturales
Geología
Argentina
López, Luciano
Echeveste, Horacio José
Tessone, Mario Osvaldo Rafael
Alperín, Marta
Etcheverry, Ricardo Oscar
Geoelectric exploration of the Purísima-Rumicruz district, Jujuy province, Argentina
topic_facet Ciencias Naturales
Geología
Argentina
description Purísima-Rumicruz district consists of several polymetallic veins, rich in copper and lead. The veins have a breccia texture and are located in shear bands, with locally high concentrations of sulfides in a carbonatic gangue. The host rock of the veins consists of a black shale sequence with thin levels of fine sands, with a low degree of metamorphism, and corresponds to the Acoite formation (Lower Ordovician). The depositional environment was an open clastic platform where storm processes prevailed. An exploratory program using induced polarization and resistivity with the dipole-dipole method was carried out with the objective of establishing geoelectric anomalies in depth, which would permit the identification of exploratory targets. The group of veins was divided into three sectors: <i>Purísima</i>, <i>El Brechón</i>, and <i>La Nueva</i>. Low-resistivity values correspond to faulty zones, some of which are related to surface veins. The presence of diagenetic pyrite in the shales of Acoite formation considerably increases background chargeability (induced polarization) values. However, small chargeability anomalies associated to low-resistivity values represent exploratory targets for the Purísima-Rumicruz district.
format Articulo
Articulo
author López, Luciano
Echeveste, Horacio José
Tessone, Mario Osvaldo Rafael
Alperín, Marta
Etcheverry, Ricardo Oscar
author_facet López, Luciano
Echeveste, Horacio José
Tessone, Mario Osvaldo Rafael
Alperín, Marta
Etcheverry, Ricardo Oscar
author_sort López, Luciano
title Geoelectric exploration of the Purísima-Rumicruz district, Jujuy province, Argentina
title_short Geoelectric exploration of the Purísima-Rumicruz district, Jujuy province, Argentina
title_full Geoelectric exploration of the Purísima-Rumicruz district, Jujuy province, Argentina
title_fullStr Geoelectric exploration of the Purísima-Rumicruz district, Jujuy province, Argentina
title_full_unstemmed Geoelectric exploration of the Purísima-Rumicruz district, Jujuy province, Argentina
title_sort geoelectric exploration of the purísima-rumicruz district, jujuy province, argentina
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/37790
http://www.hindawi.com/journals/ijge/2012/371059/
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