RT Conference Proceedings
T1 Preliminary hydrogeological characterization of an evaporite karst area (province of Cordoba, South Spain)
A1 Gil-Márquez, José Manuel
A1 Mudarra-Martínez, Matías
A1 Andreo-Navarro, Bartolomé
A1 Linares, Luis
A1 Carrasco-Cantos, Francisco
A1 Almecija, Carmen
A1 Benavente Herrera, José
A1 Durán Valsero, Juan José
A1 Jiménez de Cisneros, Concepción
A1 Vadillo-Pérez, Iñaki
A1 Rendón, Manuel
K1 Hidrogeología - Córdoba (Provincia)
AB The northern sector of the Subbetic Domain in the Betic Cordillera is formed by an olistostrome unit known asthe Chaotic Subbetic Complex (CSC). This megabreccia is basically made of Triassic (Keuper) clays and evaporites(gypsum, anhidrite and halite) as well as blocks of other lithologies (limestones, dolostones, sandstones, etc).Despite that low permeability has been traditionally assumed for these materials, water flow and storage throughthem is likely derived of their aquitard behavior, but also because of the highly permeable conduits generated bydissolution/karstification processes within the evaporite rocks. The geological complexity of the CSC materialsdetermines their hydrogeological heterogeneity, with groundwater flow systems of different length and variousscales from recharge areas to discharge zones.Three springs draining the CSC outcrops have been identified around an evaporitic karst plateau locatedbetween the Anzur River (to the North) and the Genil River (to the South), in the province of Cordoba (Spain). Datalogger devices have been installed in two of them, located at the Anzur River (left margin), providing an hourlyrecord of discharge, electrical conductivity and water temperature. Water samples have been collected fortnightlyfor subsequent chemical analysis. After two years of record, the results obtained show that the response of thesprings to rainfall events is completely different between them. One has a clearly karstic behavior, with a rapidresponse to recharge whereas the other one is more inertial, and variations in its waters occur in a yearly scale.This is an evidence of the aforementioned hydrogeological heterogeneity of the CSC.
YR 2015
FD 2015-10-02
LK http://hdl.handle.net/10630/10414
UL http://hdl.handle.net/10630/10414
LA eng
NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 19 ene 2026