caa a22 4500 445814314 CHVBK 20180317145221.0 cr unu---uuuuu 170323e20111101xx s 000 0 eng 10.1007/s10712-011-9126-2 doi (NATIONALLICENCE)springer-10.1007/s10712-011-9126-2 Integrating Hydrogeological and Geophysical Methods for the Characterization of a Deltaic Aquifer System [Elektronische Daten] [Ester Falgàs, Juanjo Ledo, Beatriz Benjumea, Pilar Queralt, Alex Marcuello, Teresa Teixidó, Anna Martí] Groundwater management needs detailed aquifer characterization, especially in semiarid costal aquifer systems that are under hydrological pressure. Our study area is in the Tordera delta, northeastern coast of Spain, where a detrital fluvio-deltaic aquifer system has been developed above granitic basement. The main purpose of this study is to characterize the complex lithological structure and the seawater intrusion state by combining hydrological information, audiomagnetotelluric (AMT) and seismic reflection and refraction models. This allowed us to provide spatially continuous information about aquifer properties and processes. Thus, we have determined the thickness and continuity of the aquifer units, as well as the morphology and depth to the basement. The models revealed that the main seawater intrusion main path is found in the western deltaic area that coincides with an existing buried paleochannel. This new result explains the anomalously high chlorine concentrations observed in the deep semiconfined aquifer more than 1,500m inland. Springer Science+Business Media B.V., 2011 Hydrogeophysics nationallicence Audiomagnetotelluric nationallicence Seismic nationallicence Saline intrusion nationallicence Falgàs Ester Departament de Geodinàmica i Geofísica, Universitat de Barcelona, Martí i Franquès s/n 08028, Barcelona, Spain aut Ledo Juanjo Departament de Geodinàmica i Geofísica, Universitat de Barcelona, Martí i Franquès s/n 08028, Barcelona, Spain aut Benjumea Beatriz Institut Geològic de Catalunya, Barcelona, Spain aut Queralt Pilar Departament de Geodinàmica i Geofísica, Universitat de Barcelona, Martí i Franquès s/n 08028, Barcelona, Spain aut Marcuello Alex Departament de Geodinàmica i Geofísica, Universitat de Barcelona, Martí i Franquès s/n 08028, Barcelona, Spain aut Teixidó Teresa Instituto Andaluz de Geofísica, Universidad de Granada, Granada, Spain aut Martí Anna Departament de Geodinàmica i Geofísica, Universitat de Barcelona, Martí i Franquès s/n 08028, Barcelona, Spain aut Surveys in Geophysics Springer Netherlands 32/6(2011-11-01), 857-873 0169-3298 32:6<857 2011 32 10712 https://doi.org/10.1007/s10712-011-9126-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10712-011-9126-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Falgàs Ester Departament de Geodinàmica i Geofísica, Universitat de Barcelona, Martí i Franquès s/n 08028, Barcelona, Spain aut NATIONALLICENCE 700 1- Ledo Juanjo Departament de Geodinàmica i Geofísica, Universitat de Barcelona, Martí i Franquès s/n 08028, Barcelona, Spain aut NATIONALLICENCE 700 1- Benjumea Beatriz Institut Geològic de Catalunya, Barcelona, Spain aut NATIONALLICENCE 700 1- Queralt Pilar Departament de Geodinàmica i Geofísica, Universitat de Barcelona, Martí i Franquès s/n 08028, Barcelona, Spain aut NATIONALLICENCE 700 1- Marcuello Alex Departament de Geodinàmica i Geofísica, Universitat de Barcelona, Martí i Franquès s/n 08028, Barcelona, Spain aut NATIONALLICENCE 700 1- Teixidó Teresa Instituto Andaluz de Geofísica, Universidad de Granada, Granada, Spain aut NATIONALLICENCE 700 1- Martí Anna Departament de Geodinàmica i Geofísica, Universitat de Barcelona, Martí i Franquès s/n 08028, Barcelona, Spain aut NATIONALLICENCE 773 0- Surveys in Geophysics Springer Netherlands 32/6(2011-11-01), 857-873 0169-3298 32:6<857 2011 32 10712 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer