CINECA IRIS Institutional Research Information System
IRIS è il sistema di gestione integrata dei dati della ricerca (persone, progetti, pubblicazioni, attività) adottato dall'Università degli Studi di Torino.
AperTO è l'archivio istituzionale Open Access destinato a raccogliere, rendere visibile e conservare la produzione scientifica dell'Università degli Studi di Torino.
EnglishGeophysical surveys on and around the Candia Lake, located NE of Turin (NWItaly), in the internal depression of the IvreaMorainicAmphitheater (IMA) right frontal sector, are reported in this paper. The surveyswere intended to obtain a geophysical characterization of the lakebed, to investigate the interconnection paths between surface water and groundwater and to be used as a first general survey for suggesting the geological processeswhich lead to the actual morphology. An extensive waterborne continuous vertical electrical sounding (CVES) survey consisting of 15 profiles, with a total length of about 19 km of acquisition, was carried out on the lake surface. The processing of the acquired profiles with a laterally constrained inversion (LCI) approach lead to the of the lakebed sediment distribution, down to 10 m depth. Self potential (SP) data recorded on the lake surface have also been analyzed. Moreover, to verify the areal distribution of the deposits, three electrical resistivity tomographies (ERTs) were carried out on land near the northern and southern shores of the lake. The combination of the geophysical survey results with hydrogeological information and geological observations and interpretations allowed the characterization of the submerged deposits, the probable identification of the main areas of groundwater recharge and the preliminary reconstruction of the lake genesis.
| Titolo: | Waterborne and on-land electrical surveys to suggest the geological evolution of a glacial lake in NW Italy |
| Autori Riconosciuti: | |
| Autori: | C. Colombero; C. Comina; F. Gianotti; L. Sambuelli |
| Data di pubblicazione: | 2014 |
| Abstract: | Geophysical surveys on and around the Candia Lake, located NE of Turin (NWItaly), in the internal depression of the IvreaMorainicAmphitheater (IMA) right frontal sector, are reported in this paper. The surveyswere intended to obtain a geophysical characterization of the lakebed, to investigate the interconnection paths between surface water and groundwater and to be used as a first general survey for suggesting the geological processeswhich lead to the actual morphology. An extensive waterborne continuous vertical electrical sounding (CVES) survey consisting of 15 profiles, with a total length of about 19 km of acquisition, was carried out on the lake surface. The processing of the acquired profiles with a laterally constrained inversion (LCI) approach lead to the of the lakebed sediment distribution, down to 10 m depth. Self potential (SP) data recorded on the lake surface have also been analyzed. Moreover, to verify the areal distribution of the deposits, three electrical resistivity tomographies (ERTs) were carried out on land near the northern and southern shores of the lake. The combination of the geophysical survey results with hydrogeological information and geological observations and interpretations allowed the characterization of the submerged deposits, the probable identification of the main areas of groundwater recharge and the preliminary reconstruction of the lake genesis. |
| Volume: | 105 |
| Pagina iniziale: | 191 |
| Pagina finale: | 202 |
| Digital Object Identifier (DOI): | 10.1016/j.jappgeo.2014.03.020 |
| URL: | http://dx.doi.org/10.1016/j.jappgeo.2014.03.020 |
| Parole Chiave: | CVES; Laterally constrained inversion; Lake basin genesis; Groundwater recharge area |
| Rivista: | JOURNAL OF APPLIED GEOPHYSICS |
| Appare nelle tipologie: | 03A-Articolo su Rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| Candia Lake-Jour.Appl.Geophysics.pdf | PDF EDITORIALE | Accesso riservato | Utenti riconosciuti Richiedi una copia | |
| postscript_CandiaCVES.pdf | Articolo principale | POSTPRINT (VERSIONE FINALE DELL’AUTORE) | Richiedi una copia |
http://hdl.handle.net/2318/145295
Copyright © 2020