The potential of audiomagnetotellurics in the study of geothermal fields: A case study from the northern segment of the La Candelaria Range, northwestern Argentina
Despite its reduced penetration depth, audiomagnetotelluric (AMT) studies can be used to determine a broad range of features related to little studied geothermal fields. This technique requires a stepwise interpretation of results taking into consideration diverse information (e.g. topographic, hydr...
| Autores principales: | , , , , |
|---|---|
| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_09269851_v88_n_p83_Barcelona |
| Aporte de: |
| id |
todo:paper_09269851_v88_n_p83_Barcelona |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_09269851_v88_n_p83_Barcelona2023-10-03T15:46:52Z The potential of audiomagnetotellurics in the study of geothermal fields: A case study from the northern segment of the La Candelaria Range, northwestern Argentina Barcelona, H. Favetto, A. Peri, V.G. Pomposiello, C. Ungarelli, C. Audiomagnetotellurics Geoelectric strike Geothermal field La Candelaria Range Northwestern Argentina 1-D models 2-D model Argentina Audiomagnetotellurics Distortion analysis Fluid circulation Geoelectric Geothermal areas Impedance tensor Resistivity distributions Shallow geothermal systems Shallow subsurface Strong correlation Structural data Structural feature Study areas Hot springs Geothermal fields audiomagnetotelluric sounding geoelectric field geothermal system morphostructure one-dimensional modeling two-dimensional modeling Argentina Candelaria Despite its reduced penetration depth, audiomagnetotelluric (AMT) studies can be used to determine a broad range of features related to little studied geothermal fields. This technique requires a stepwise interpretation of results taking into consideration diverse information (e.g. topographic, hydrological, geological and/or structural data) to constrain the characteristics of the study area. In this work, an AMT study was performed at the hot springs in the northern segment of the La Candelaria Range in order to characterize the area at depth. Geometric aspects of the shallow subsurface were determined based on the dimensional and distortion analysis of the impedance tensors. Also, the correlation between structural features and regional strikes allowed us to define two geoelectric domains, useful to determine the controls on fluid circulation. The subsurface resistivity distribution was determined through 1D and 2D models. The patterns of the 1D models were compared with the morpho-structure of the range. Shallow and deep conductive zones were defined and a possible shallow geothermal system scheme proposed. A strong correlation was found between the AMT results and the geological framework of the region, showing the relevance of using AMT in geothermal areas during the early stages of subsurface prospecting. © 2012 Elsevier B.V. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09269851_v88_n_p83_Barcelona |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Audiomagnetotellurics Geoelectric strike Geothermal field La Candelaria Range Northwestern Argentina 1-D models 2-D model Argentina Audiomagnetotellurics Distortion analysis Fluid circulation Geoelectric Geothermal areas Impedance tensor Resistivity distributions Shallow geothermal systems Shallow subsurface Strong correlation Structural data Structural feature Study areas Hot springs Geothermal fields audiomagnetotelluric sounding geoelectric field geothermal system morphostructure one-dimensional modeling two-dimensional modeling Argentina Candelaria |
| spellingShingle |
Audiomagnetotellurics Geoelectric strike Geothermal field La Candelaria Range Northwestern Argentina 1-D models 2-D model Argentina Audiomagnetotellurics Distortion analysis Fluid circulation Geoelectric Geothermal areas Impedance tensor Resistivity distributions Shallow geothermal systems Shallow subsurface Strong correlation Structural data Structural feature Study areas Hot springs Geothermal fields audiomagnetotelluric sounding geoelectric field geothermal system morphostructure one-dimensional modeling two-dimensional modeling Argentina Candelaria Barcelona, H. Favetto, A. Peri, V.G. Pomposiello, C. Ungarelli, C. The potential of audiomagnetotellurics in the study of geothermal fields: A case study from the northern segment of the La Candelaria Range, northwestern Argentina |
| topic_facet |
Audiomagnetotellurics Geoelectric strike Geothermal field La Candelaria Range Northwestern Argentina 1-D models 2-D model Argentina Audiomagnetotellurics Distortion analysis Fluid circulation Geoelectric Geothermal areas Impedance tensor Resistivity distributions Shallow geothermal systems Shallow subsurface Strong correlation Structural data Structural feature Study areas Hot springs Geothermal fields audiomagnetotelluric sounding geoelectric field geothermal system morphostructure one-dimensional modeling two-dimensional modeling Argentina Candelaria |
| description |
Despite its reduced penetration depth, audiomagnetotelluric (AMT) studies can be used to determine a broad range of features related to little studied geothermal fields. This technique requires a stepwise interpretation of results taking into consideration diverse information (e.g. topographic, hydrological, geological and/or structural data) to constrain the characteristics of the study area. In this work, an AMT study was performed at the hot springs in the northern segment of the La Candelaria Range in order to characterize the area at depth. Geometric aspects of the shallow subsurface were determined based on the dimensional and distortion analysis of the impedance tensors. Also, the correlation between structural features and regional strikes allowed us to define two geoelectric domains, useful to determine the controls on fluid circulation. The subsurface resistivity distribution was determined through 1D and 2D models. The patterns of the 1D models were compared with the morpho-structure of the range. Shallow and deep conductive zones were defined and a possible shallow geothermal system scheme proposed. A strong correlation was found between the AMT results and the geological framework of the region, showing the relevance of using AMT in geothermal areas during the early stages of subsurface prospecting. © 2012 Elsevier B.V. |
| format |
JOUR |
| author |
Barcelona, H. Favetto, A. Peri, V.G. Pomposiello, C. Ungarelli, C. |
| author_facet |
Barcelona, H. Favetto, A. Peri, V.G. Pomposiello, C. Ungarelli, C. |
| author_sort |
Barcelona, H. |
| title |
The potential of audiomagnetotellurics in the study of geothermal fields: A case study from the northern segment of the La Candelaria Range, northwestern Argentina |
| title_short |
The potential of audiomagnetotellurics in the study of geothermal fields: A case study from the northern segment of the La Candelaria Range, northwestern Argentina |
| title_full |
The potential of audiomagnetotellurics in the study of geothermal fields: A case study from the northern segment of the La Candelaria Range, northwestern Argentina |
| title_fullStr |
The potential of audiomagnetotellurics in the study of geothermal fields: A case study from the northern segment of the La Candelaria Range, northwestern Argentina |
| title_full_unstemmed |
The potential of audiomagnetotellurics in the study of geothermal fields: A case study from the northern segment of the La Candelaria Range, northwestern Argentina |
| title_sort |
potential of audiomagnetotellurics in the study of geothermal fields: a case study from the northern segment of the la candelaria range, northwestern argentina |
| url |
http://hdl.handle.net/20.500.12110/paper_09269851_v88_n_p83_Barcelona |
| work_keys_str_mv |
AT barcelonah thepotentialofaudiomagnetotelluricsinthestudyofgeothermalfieldsacasestudyfromthenorthernsegmentofthelacandelariarangenorthwesternargentina AT favettoa thepotentialofaudiomagnetotelluricsinthestudyofgeothermalfieldsacasestudyfromthenorthernsegmentofthelacandelariarangenorthwesternargentina AT perivg thepotentialofaudiomagnetotelluricsinthestudyofgeothermalfieldsacasestudyfromthenorthernsegmentofthelacandelariarangenorthwesternargentina AT pomposielloc thepotentialofaudiomagnetotelluricsinthestudyofgeothermalfieldsacasestudyfromthenorthernsegmentofthelacandelariarangenorthwesternargentina AT ungarellic thepotentialofaudiomagnetotelluricsinthestudyofgeothermalfieldsacasestudyfromthenorthernsegmentofthelacandelariarangenorthwesternargentina AT barcelonah potentialofaudiomagnetotelluricsinthestudyofgeothermalfieldsacasestudyfromthenorthernsegmentofthelacandelariarangenorthwesternargentina AT favettoa potentialofaudiomagnetotelluricsinthestudyofgeothermalfieldsacasestudyfromthenorthernsegmentofthelacandelariarangenorthwesternargentina AT perivg potentialofaudiomagnetotelluricsinthestudyofgeothermalfieldsacasestudyfromthenorthernsegmentofthelacandelariarangenorthwesternargentina AT pomposielloc potentialofaudiomagnetotelluricsinthestudyofgeothermalfieldsacasestudyfromthenorthernsegmentofthelacandelariarangenorthwesternargentina AT ungarellic potentialofaudiomagnetotelluricsinthestudyofgeothermalfieldsacasestudyfromthenorthernsegmentofthelacandelariarangenorthwesternargentina |
| _version_ |
1807314668236046336 |