Audiomagnetotelluric survey at the Bañitos-Gollete geothermal area, main Andes Cordillera of San Juan, Argentina

The present research explores the Bañitos-Gollete geothermal field located in the Frontal Andes Cordillera over the Pampean flat-slab. We carried out an audiomagnetotelluric survey in order to define the underground geoelectrical structure and to understand the link between the geothermal fluid pat...

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Main Authors: H. Barcelona, G. Peri, D. Winocur, A. Favetto
Format: Article
Language:English
Published: Universitat de Barcelona (UB), Geociències Barcelona (Geo3BCN), Institut de Diagnosi Ambiental i Estudis de l'Aigua (IDAEA), Universitat Autònoma de Barcelona (UAB) 2019-07-01
Series:Geologica Acta
Subjects:
Online Access:https://revistes.ub.edu/index.php/GEOACTA/article/view/22617
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author H. Barcelona
G. Peri
D. Winocur
A. Favetto
author_facet H. Barcelona
G. Peri
D. Winocur
A. Favetto
author_sort H. Barcelona
collection DOAJ
description The present research explores the Bañitos-Gollete geothermal field located in the Frontal Andes Cordillera over the Pampean flat-slab. We carried out an audiomagnetotelluric survey in order to define the underground geoelectrical structure and to understand the link between the geothermal fluid path and the main geological structures. 2-D audiomagnetotelluric models suggest that the deep-rooted N-S fault system control the geothermal flow path. We propose a conductive heat-driven system, taking into consideration the geologic setting and the supposed low geothermal gradient of this tectonic environment. The mature Na-Cl waters from Gollete and an estimated reservoir temperature of ~140ºC are consistent with this conceptual model. Further investigations are required to assess the geothermal potential of the study area, and the present work likely represents only the first but necessary step in the exploration process.
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publishDate 2019-07-01
publisher Universitat de Barcelona (UB), Geociències Barcelona (Geo3BCN), Institut de Diagnosi Ambiental i Estudis de l'Aigua (IDAEA), Universitat Autònoma de Barcelona (UAB)
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spelling doaj.art-3a7a777a22734aaf8c7f7e52d7dd228f2023-10-20T07:26:35ZengUniversitat de Barcelona (UB), Geociències Barcelona (Geo3BCN), Institut de Diagnosi Ambiental i Estudis de l'Aigua (IDAEA), Universitat Autònoma de Barcelona (UAB)Geologica Acta1696-57282019-07-0117Audiomagnetotelluric survey at the Bañitos-Gollete geothermal area, main Andes Cordillera of San Juan, ArgentinaH. Barcelona0G. Peri1D. Winocur2A. Favetto3CONICET-IDEAN, Instituto de Estudios Andinos, Universidad de Buenos Aires Pabellón II, Núñez, Buenos Aires, C1428EHACONICET-IGEBA, Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires, Universidad de Buenos Aires Pabellón II, Nuñez, Buenos Aires, C1428EHACONICET-IDEAN, Instituto de Estudios Andinos, Universidad de Buenos Aires Pabellón II, Núñez, Buenos Aires, C1428EHACONICET-INGEIS, Instituto de Geocronología y Geología Isotópica-CONICET, Buenos Aires Pabellón INGEIS, Ciudad Universitaria, C1428EHA The present research explores the Bañitos-Gollete geothermal field located in the Frontal Andes Cordillera over the Pampean flat-slab. We carried out an audiomagnetotelluric survey in order to define the underground geoelectrical structure and to understand the link between the geothermal fluid path and the main geological structures. 2-D audiomagnetotelluric models suggest that the deep-rooted N-S fault system control the geothermal flow path. We propose a conductive heat-driven system, taking into consideration the geologic setting and the supposed low geothermal gradient of this tectonic environment. The mature Na-Cl waters from Gollete and an estimated reservoir temperature of ~140ºC are consistent with this conceptual model. Further investigations are required to assess the geothermal potential of the study area, and the present work likely represents only the first but necessary step in the exploration process. https://revistes.ub.edu/index.php/GEOACTA/article/view/22617AudiomagnetotelluricsGeothermal resourceHydrothermal systemValle del Cura basinAndes
spellingShingle H. Barcelona
G. Peri
D. Winocur
A. Favetto
Audiomagnetotelluric survey at the Bañitos-Gollete geothermal area, main Andes Cordillera of San Juan, Argentina
Geologica Acta
Audiomagnetotellurics
Geothermal resource
Hydrothermal system
Valle del Cura basin
Andes
title Audiomagnetotelluric survey at the Bañitos-Gollete geothermal area, main Andes Cordillera of San Juan, Argentina
title_full Audiomagnetotelluric survey at the Bañitos-Gollete geothermal area, main Andes Cordillera of San Juan, Argentina
title_fullStr Audiomagnetotelluric survey at the Bañitos-Gollete geothermal area, main Andes Cordillera of San Juan, Argentina
title_full_unstemmed Audiomagnetotelluric survey at the Bañitos-Gollete geothermal area, main Andes Cordillera of San Juan, Argentina
title_short Audiomagnetotelluric survey at the Bañitos-Gollete geothermal area, main Andes Cordillera of San Juan, Argentina
title_sort audiomagnetotelluric survey at the banitos gollete geothermal area main andes cordillera of san juan argentina
topic Audiomagnetotellurics
Geothermal resource
Hydrothermal system
Valle del Cura basin
Andes
url https://revistes.ub.edu/index.php/GEOACTA/article/view/22617
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