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| Titel |
Using the ERT method in tectonically active areas: hints from Southern Apennine (Italy) |
| VerfasserIn |
A. Giocoli, P. Burrato, P. Galli, V. Lapenna, S. Piscitelli, E. Rizzo, G. Romano, A. Siniscalchi, C. Magrí, P. Vannoli |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: Geophysical monitoring of the near-surface by electromagnetic and other geophysical methods ; Nr. 19 (2008-11-14), S.61-65 |
| Datensatznummer |
250014153
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| Publikation (Nr.) |
 copernicus.org/adgeo-19-61-2008.pdf |
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| Zusammenfassung |
Electrical Resistivity Tomography (ERT) method has been used to study two
tectonically active areas of southern Apennine (Caggiano Faults and Ufita
Basin). The main aim of this job was to study the structural setting of the
investigated areas, i.e. the geometry of the basins at depth, the location of
active faults at surface, and their geometrical characterization. The
comparison between ERT and trench/drilling data allowed us to evaluate the
efficacy of the ERT method in studying active faults and the structural
setting of seismogenic areas.
In the Timpa del Vento intermontane basin, high resolution ERT across the
Caggiano Fault scarps, with different arrays, electrode spacing (from 1 to
10 m) and penetration depth (from about 5 to 40 m) was carried out. The
obtained resistivity models allowed us to locate the fault planes along the
hillslope and to gather information at depth, as later confirmed by
paleoseismological trenches excavated across the fault trace.
In the Ufita River Valley a 3560-m-long ERT was carried out across the basin,
joining 11 roll-along multi-channel acquisition system with an electrode
spacing of 20 m and reaching an investigation depth of about 170 m. The ERT
allowed us to reconstruct the geometry and thickness of the Quaternary
deposits filling the Ufita Valley. Our reconstruction of the depositional
setting is in agreement with an interpretative geological section based on
borehole data. |
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