Integrated geoelectrical and magnetotelluric exploration at Gran Sasso d'Italia range (Central Apennines)
We carried out three electrical soundings, with continuous polar dipole-dipole array, and three magnetotelluric stations at Gran Sasso d'Italia, in the area of Campo Imperatore. Geoelectrical data show the existence of a resistive background with exceptionally high values of resistivity (greate...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Istituto Nazionale di Geofisica e Vulcanologia (INGV)
1998-06-01
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| Series: | Annals of Geophysics |
| Subjects: | |
| Online Access: | http://www.annalsofgeophysics.eu/index.php/annals/article/view/4348 |
| _version_ | 1818873340776939520 |
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| author | A. Zaja M. Giudici L. Alfano |
| author_facet | A. Zaja M. Giudici L. Alfano |
| author_sort | A. Zaja |
| collection | DOAJ |
| description | We carried out three electrical soundings, with continuous polar dipole-dipole array, and three magnetotelluric stations at Gran Sasso d'Italia, in the area of Campo Imperatore. Geoelectrical data show the existence of a resistive background with exceptionally high values of resistivity (greater than 25000 ? m) at a depth of about 250 m. The magnetotelluric data were used to constrain the thickness of this resistive layer, below which we find an intermediate conductive structure and a deeper resistive background. The geological interpretation of this result is still open to discussion, but we can exclude that the shallow resistive layer consists of Cretaceous limestones, since their resistivity has been estimated to be about 5000 ? m. |
| first_indexed | 2024-12-19T12:53:09Z |
| format | Article |
| id | doaj.art-849e4443c19645f78a28bad8debe7f42 |
| institution | Directory Open Access Journal |
| issn | 1593-5213 2037-416X |
| language | English |
| last_indexed | 2024-12-19T12:53:09Z |
| publishDate | 1998-06-01 |
| publisher | Istituto Nazionale di Geofisica e Vulcanologia (INGV) |
| record_format | Article |
| series | Annals of Geophysics |
| spelling | doaj.art-849e4443c19645f78a28bad8debe7f422022-12-21T20:20:28ZengIstituto Nazionale di Geofisica e Vulcanologia (INGV)Annals of Geophysics1593-52132037-416X1998-06-0141310.4401/ag-4348Integrated geoelectrical and magnetotelluric exploration at Gran Sasso d'Italia range (Central Apennines)A. ZajaM. GiudiciL. AlfanoWe carried out three electrical soundings, with continuous polar dipole-dipole array, and three magnetotelluric stations at Gran Sasso d'Italia, in the area of Campo Imperatore. Geoelectrical data show the existence of a resistive background with exceptionally high values of resistivity (greater than 25000 ? m) at a depth of about 250 m. The magnetotelluric data were used to constrain the thickness of this resistive layer, below which we find an intermediate conductive structure and a deeper resistive background. The geological interpretation of this result is still open to discussion, but we can exclude that the shallow resistive layer consists of Cretaceous limestones, since their resistivity has been estimated to be about 5000 ? m.http://www.annalsofgeophysics.eu/index.php/annals/article/view/4348Magnetotelluricdipole-dipole DC soundingcrustal explorationCentral Apennines |
| spellingShingle | A. Zaja M. Giudici L. Alfano Integrated geoelectrical and magnetotelluric exploration at Gran Sasso d'Italia range (Central Apennines) Annals of Geophysics Magnetotelluric dipole-dipole DC sounding crustal exploration Central Apennines |
| title | Integrated geoelectrical and magnetotelluric exploration at Gran Sasso d'Italia range (Central Apennines) |
| title_full | Integrated geoelectrical and magnetotelluric exploration at Gran Sasso d'Italia range (Central Apennines) |
| title_fullStr | Integrated geoelectrical and magnetotelluric exploration at Gran Sasso d'Italia range (Central Apennines) |
| title_full_unstemmed | Integrated geoelectrical and magnetotelluric exploration at Gran Sasso d'Italia range (Central Apennines) |
| title_short | Integrated geoelectrical and magnetotelluric exploration at Gran Sasso d'Italia range (Central Apennines) |
| title_sort | integrated geoelectrical and magnetotelluric exploration at gran sasso d italia range central apennines |
| topic | Magnetotelluric dipole-dipole DC sounding crustal exploration Central Apennines |
| url | http://www.annalsofgeophysics.eu/index.php/annals/article/view/4348 |
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