Hydrochemical and isotopes studies in a hypersaline wetland to define the hydrogeological conceptual model: Fuente de Piedra Lake (Malaga, Spain)
| Autor: | J. M. Ruiz, Eulogio Pardo-Igúzquiza, F.J. Montalván, A. García de Domingo, Javier Heredia, F.J. Elorza |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Environmental Engineering
environmental isotopes conceptual model provincia Málaga 0208 environmental biotechnology Wetland 02 engineering and technology Structural basin Piedra variable density Fuente de Piedra Lake (Spain) medicine Environmental Chemistry Waste Management and Disposal Hydrology geography geography.geographical_feature_category Endorheic basin Groundwater recharge Karst medicine.disease Pollution 020801 environmental engineering Hydric soil Environmental isotopes Geology |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 0048-9697 |
| Popis: | The Fuente de Piedra lake is a hypersaline wetland of great extension (13.5 km2) and rich in aquatic birds and other species. It became therefore the third Spanish wetland to be included in the Ramsar convention and has been a “nature reserve” since 1984. The lake has an endorheic basin (150 km2) with variable-density flows dominated by complex hydrogeological conditions. The traditional conceptualization of endorheic basins in semiarid climates considered that the brine in this hydric system was exclusively of evaporative origin and was placed only in the lake and its surrounding discharge area in the basin. Previous geophysical and hydrochemical studies identified different types of waters and brines. In this work, natural tracers (Cl−, Br−, Na+, Mg2+) and environmental isotopes (18O, 2H, 14C, 13C and 3H) were employed to a) discriminate different types of brines according to their degree of evaporation and genesis, and b) to estimate residence times of brine waters and identify recharge areas of the different flow subsystems. A conceptual model of the hydrogeological system of the lake basin and its links to a regional karst system is proposed. Instituto Geológico y Minero de España, España Escuela Técnica Superior de Ingenieros de Minas, Universidad Politécnica de Madrid, España Facultad de Ciencias de la Ingeniería, Universidad Estatal Península de Santa Elena, Ecuador |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect