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Artículo

Pismanta geothermal play in the iglesia basin related to transverse fault systems in the andean orogen

Clavel, Franco GermánIcon ; Gonzalez, Marcelo; Gianni, Guido MartinIcon ; Winocur, Diego Alejandro; Christiansen, Rodolfo OmarIcon ; Lince Klinger, Federico GustavoIcon ; Martínez, Myriam PatriciaIcon
Fecha de publicación: 01/2023
Editorial: Pergamon-Elsevier Science Ltd
Revista: Journal of South American Earth Sciences
ISSN: 0895-9811
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Geoquímica y Geofísica

Resumen

The intermontane Iglesia Basin constitutes the northern Uspallata-Calingasta-Iglesia tectonic depression that holds the Pismanta geothermal field, genetically connected with the basin evolution and structure. Understanding the local structure associated with this geothermal field and linking this system to the regional tectonics is essential to characterize thermal water rising in this area. To address this issue, we carried out a field-based structural analysis and an examination of sedimentary outcrops at the Pismanta area. Also, we linked surface structural data to the subsurface basin structure by means of a previously interpreted seismic reflection line. Our integrated analysis reveals that the Pismanta geothermal field is located in an area of favorable lithology at the intersection of WNW- and NNE-trending thrust faults. These jointly developed a permeability anomaly zone at the Pismanta locality that allows hot underground water rising from deep sedimentary sequences. This observation explains why the thermal springs are only locally concentrated in the study area; a key aspect that was not taken into account in previous models for the Pismanta geothermal field. These results and the overall basin tectonic evolution allowed us to define a new and more complex structural geothermal play model at the Pismanta field.
Palabras clave: GEOTHERMAL FIELD , IGLESIA BASIN , NON MAGMATIC GEOTHERMAL SYSTEM , SOUTHERN CENTRAL ANDES
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/223135
URL: https://linkinghub.elsevier.com/retrieve/pii/S0895981122004291
DOI: http://dx.doi.org/10.1016/j.jsames.2022.104143
Colecciones
Articulos(CCT - SAN JUAN)
Articulos de CENTRO CIENTIFICO TECNOLOGICO CONICET - SAN JUAN
Citación
Clavel, Franco Germán; Gonzalez, Marcelo; Gianni, Guido Martin; Winocur, Diego Alejandro; Christiansen, Rodolfo Omar; et al.; Pismanta geothermal play in the iglesia basin related to transverse fault systems in the andean orogen; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 121; 1-2023; 1-14
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