Preliminary data on the structure and potential of the Tocomar geothermal field (Puna plateau, Argentina)

G. GIORDANO; AHUMADA MA. FLORENCIA; ALDEGA LUCAS; BAEZ, WALTER ARIEL; BECCHIO RAÚL; BIGI SABINA; CHIARA CARICCHI; AGOSTINA CHIODI; SVEVA CORRADO; ARALDO DE BENNEDETTI; FAVETTO ALICIA; RUBEN FILIPOVICH; FUSSARI ALESSANDRO; GIANLUCA GROPPELLI; INVERNIZZI CHIARA; MAFFUCCI ROBERTA; GIANLUCA NORINI; ANNAMARIA PINTON; POMPOSIELLO C.; FRANCO TASSI; SARA TAVIANI; VIRAMONTE JOSE G.

Energy Procedia

Elsevier

Año: 2016 vol. 97 p. 202 - 209

1876-6102

This study presents new stratigraphic, structural and hydrogeological data on the Tocomar geothermal volcanic area (Punaplateau, Central Andes, NW Argentina), together with preliminary geochemical and magnetotelluric data.The main geothermal reservoir is located within the fractured Pre-Palaeozoic?Ordovician units. The reservoir is recharged bymeteoric waters. Geothermal fluids upwell where main regional structures intersect secondary structures associated with thedevelopment of the Tocomar basin. Preliminary data indicate a reservoir temperature of ~ 200 °C and a local geothermal gradientof ~ 130°C/km associated with the Quaternary volcanic activity in the Tocomar area.