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Título: | An approach to integrated assessement of reservoir siltation: the Joaquín Costa reservoir as a case study |
Autor: | Navas Izquierdo, Ana CSIC ORCID ; Valero-Garcés, Blas L. CSIC ORCID ; Machín Gayarre, Javier CSIC | Palabras clave: | Reservoir siltation Mineralogy Sedimentology Sedimentation rates 137Cs Sediment tracing Mountain reservoir Central Pyrenees |
Fecha de publicación: | 2004 | Editor: | European Geosciences Union | Citación: | Hydrology and Earth System Sciences 8(6): 1193-1199 (2004) | Resumen: | In 1932, the Esera river was dammed at the foothills of the Pyrenean External Ranges; since then, sedimentation has reduced its water storage capacity by a third. This study of the sediments in the Joaquín Costa reservoir has been based on detailed sedimentological examination and other analysis of mineralogy, grain size distribution and the chemical components of the materials accumulated at the bottom of the reservoir. Interpretations are based on results from four sediment cores collected at sites representative of the main environments in the reservoir. Records of known flood events and of reservoir management data have been combined with a 137Cs-derived chronology. Thus, it has been possible to ascribe the sedimentary record at the different reservoir environments to specific years, as well as some main changes in the facies types and sediment components. This methodology is a first approach to assessing siltation processes and dynamics in Mediterranean mountain reservoirs. | Descripción: | 7 páginas, 3 figuras, 2 tablas. | Versión del editor: | http://dx.doi.org/10.5194/hess-8-1193-2004 | URI: | http://hdl.handle.net/10261/35707 | DOI: | 10.5194/hess-8-1193-2004 | ISSN: | 1027-5606 |
Aparece en las colecciones: | (IPE) Artículos (EEAD) Artículos |
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