Induced polarization?resistivity exploration in the polymetallic Purísima-Rumicruz District, Jujuy Province (Argentina).

LÓPEZ LUCIANO; ECHEVESTE, HORACIO; TESSONE, MARIO

BOLLETTINO DI GEOFISICA TEORICA ED APPLICATA

ISTITUTO NAZIONALE DI OCEANOGRAFIA E DI GEOFISICA

Lugar: Trieste; Año: 2010 vol. 51 p. 240 - 242

0006-6729

The studied area is located at the edge between the Puna and Cordillera Oriental geological provinces, in  the  north-western  Argentina.  The  district  is  25  km  east  of  Abra  Pampa  town,  1800  km  north  of Buenos Aires. North-western Argentina has a long mining history. Aguilar is the most important mine in  the  area  and  produces  a  Pb-Ag-Zn  concentrate  from  an  Ordovician  SEDEX  deposit  type,  with  a later remobilization event produced by intrusion-related metamorphism of Mesozoic granitic plutons (Sureda,  1999).  Purísima-Rumicruz  has  anomalous  contents  of  Ag,  As,  Ni,  Co,  Cu  and  Pb,  and together  with  La  Esperanza  and  La  Niquelina,  represents  a  small  but  uncommon  metallogenic province  in  Argentina.  This  province  gathers  together  deposits  of  Puna  and  Cordillera  Oriental classified  as  five  element  deposit  by  Lurgo  Mayón  (1999).  Induced  Polarization  (IP)  -  Resistivity study  is  a  well  known  geophysical  method  to  determine  the  presence  of  sulfide  ores,  particularly hosted in vein system. IP anomalies in sulfide-rich vein deposits are considered excellent explorationguides to determining future targets for exploration.