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  • A preliminary hydrogeologic conceptual model of the Manteigas-Nave de Santo Antonio-Torre sector (Serra da Estrela Natural park, central Portugal)
    Publication . Marques, Jorge Espinha; Marques, José M.; Carreira, Paula M.; I. Chaminé, Helder; Fonseca, Paulo E.; Samper, Javier; Pisani, B.; Alvares, D.; Vieira, Gonçalo T.; Mora, Carla; Teixeira, José; Gomes, Alberto; Carvalho, José Martins; Borges, Frederico S.; Rocha, Fernando T.; Beleza, Vitorino
    This work is strongly connected with one of the most crucial water research issues at the turn of the millennium “High Mountain Areas Hydrology” (UNESCO IHP-VI Programme). Special emphasis is dedicated to high mountains and their role and impact on surface water/groundwater interaction at Serra da Estrela region - Central Portugal, in order propose a preliminary hydrogeologic conceptual model of the Manteigas - Nave de Santo Antonio - Torre sector, contributing to i) increase knowledge on recharge and discharge processes in this high mountain area and ii) assess the role of snowmelt as a source of groundwater resources, with the aid of coupled isotopic and geochemical techniques. The isotopic signatures of Caldas de Manteigas thermomineral waters combined with the i) morphostructural data and ii) isotopic composition of shallow groundwater and precipitation samples, made it possible to identify possible recharge areas, which should be located at altitude sites above 1500 m a.s.l.. The recharge altitudes are similar to those of Nave de Santo Antonio area which is directly located on the Braganca-Vilarica-Manteigas fault zone. This tectonic structure should play an important role in groundwater recharge and circulation towards the discharge zone at the Spas.
    2006-07-12Comunicação em conferência Acesso aberto Ver mais