Three-Dimensional Magnetotelluric Characterization of the Travale Geothermal Field (Italy)
The geoelectrical features of the Travale geothermal field (Italy), one of the most productive geothermal fields in the world, have been investigated by means of three-dimensional (3D) magnetotelluric (MT) data inversion. This study presents the first resistivity model of the Travale geothermal fiel...
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| Format: | Article |
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MDPI AG
2022-01-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/14/3/542 |
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| author | Francesca Pace Anna Martí Pilar Queralt Alessandro Santilano Adele Manzella Juanjo Ledo Alberto Godio |
| author_facet | Francesca Pace Anna Martí Pilar Queralt Alessandro Santilano Adele Manzella Juanjo Ledo Alberto Godio |
| author_sort | Francesca Pace |
| collection | DOAJ |
| description | The geoelectrical features of the Travale geothermal field (Italy), one of the most productive geothermal fields in the world, have been investigated by means of three-dimensional (3D) magnetotelluric (MT) data inversion. This study presents the first resistivity model of the Travale geothermal field derived from derivative-based 3D MT inversion. We analyzed MT data that have been acquired in Travale over the past decades in order to determine its geoelectrical dimensionality, directionality, and phase tensor properties. We selected data from 51 MT sites for 3D inversion. We carried out a number of 3D MT inversion tests by changing the type of data to be inverted, the inclusion of static-shift correction at some sites where new time-domain electromagnetic soundings (TDEM) were acquired, the grid rotation, as well as the starting model in order to assess the connection between the inversion model and the geology. The final 3D model herein presents deep elongated resistive bodies between the depths of 1.5 and 8 km. They are transverse to the Apennine structures and suggest a correlation with the strike-slip tectonics. Comparison with a seismic velocity model and well log data suggests a highly-fractured volume of rocks with vapor-dominated circulation. The outcome of this study provides new insights into the complex geothermal system of Travale. |
| first_indexed | 2024-03-09T23:13:18Z |
| format | Article |
| id | doaj.art-013fc7ba2ecc4451b4835fc715c51137 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-09T23:13:18Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-013fc7ba2ecc4451b4835fc715c511372023-11-23T17:39:25ZengMDPI AGRemote Sensing2072-42922022-01-0114354210.3390/rs14030542Three-Dimensional Magnetotelluric Characterization of the Travale Geothermal Field (Italy)Francesca Pace0Anna Martí1Pilar Queralt2Alessandro Santilano3Adele Manzella4Juanjo Ledo5Alberto Godio6Department of Environment, Land and Infrastructure Engineering (DIATI), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, ItalyDepartament de Dinàmica de la Terra i de l’Oceà, Facultat de Ciències de la Terra, Institut Geomodels, Universitat de Barcelona, C/Martí i Franquès s/n, 08028 Barcelona, SpainDepartament de Dinàmica de la Terra i de l’Oceà, Facultat de Ciències de la Terra, Institut Geomodels, Universitat de Barcelona, C/Martí i Franquès s/n, 08028 Barcelona, SpainInstitute of Geosciences and Earth Resources—National Research Council (IGG-CNR), Via Moruzzi 1, 56124 Pisa, ItalyInstitute of Geosciences and Earth Resources—National Research Council (IGG-CNR), Via Moruzzi 1, 56124 Pisa, ItalyDepartament de Dinàmica de la Terra i de l’Oceà, Facultat de Ciències de la Terra, Institut Geomodels, Universitat de Barcelona, C/Martí i Franquès s/n, 08028 Barcelona, SpainDepartment of Environment, Land and Infrastructure Engineering (DIATI), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, ItalyThe geoelectrical features of the Travale geothermal field (Italy), one of the most productive geothermal fields in the world, have been investigated by means of three-dimensional (3D) magnetotelluric (MT) data inversion. This study presents the first resistivity model of the Travale geothermal field derived from derivative-based 3D MT inversion. We analyzed MT data that have been acquired in Travale over the past decades in order to determine its geoelectrical dimensionality, directionality, and phase tensor properties. We selected data from 51 MT sites for 3D inversion. We carried out a number of 3D MT inversion tests by changing the type of data to be inverted, the inclusion of static-shift correction at some sites where new time-domain electromagnetic soundings (TDEM) were acquired, the grid rotation, as well as the starting model in order to assess the connection between the inversion model and the geology. The final 3D model herein presents deep elongated resistive bodies between the depths of 1.5 and 8 km. They are transverse to the Apennine structures and suggest a correlation with the strike-slip tectonics. Comparison with a seismic velocity model and well log data suggests a highly-fractured volume of rocks with vapor-dominated circulation. The outcome of this study provides new insights into the complex geothermal system of Travale.https://www.mdpi.com/2072-4292/14/3/542magnetotellurics3D inversiongeothermicsTravaleItaly |
| spellingShingle | Francesca Pace Anna Martí Pilar Queralt Alessandro Santilano Adele Manzella Juanjo Ledo Alberto Godio Three-Dimensional Magnetotelluric Characterization of the Travale Geothermal Field (Italy) Remote Sensing magnetotellurics 3D inversion geothermics Travale Italy |
| title | Three-Dimensional Magnetotelluric Characterization of the Travale Geothermal Field (Italy) |
| title_full | Three-Dimensional Magnetotelluric Characterization of the Travale Geothermal Field (Italy) |
| title_fullStr | Three-Dimensional Magnetotelluric Characterization of the Travale Geothermal Field (Italy) |
| title_full_unstemmed | Three-Dimensional Magnetotelluric Characterization of the Travale Geothermal Field (Italy) |
| title_short | Three-Dimensional Magnetotelluric Characterization of the Travale Geothermal Field (Italy) |
| title_sort | three dimensional magnetotelluric characterization of the travale geothermal field italy |
| topic | magnetotellurics 3D inversion geothermics Travale Italy |
| url | https://www.mdpi.com/2072-4292/14/3/542 |
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