Physicochemical Analysis Of Water Samples Research Articles

Les importantes émergences de Magland, dans la vallée de l'Arve (Haute-Savoie, France) : physico-chimie et origine des eaux

Several dye-tracing experiments and the physico-chemical analysis of water samples taken during 18 monthes were performed at two important springs in the Aroe valley, Haute-Savoie, France. The water origin and the mode of transit, very different from one to the other, are thus explained. The first spring collects water from both a bare high-altitude karst and a forested karst, at a lower elevation. It gathers also waters from the lakes Flaine and Vernant. The drainage is superficial, with strong but short water outbursts ; water storage is nevertheless important, the spring being perennial. The physico-chemistry of its water is similar to that of springs located in the northern Prealps. The second spring is very different. The physico-chemistry variations being much smoother. It comes from a basin filled with fluvio-glacial deposits and located under the lake Gers. Its physico-che-mical properties are rather similar to those of typical springs located in Provence, southern Provence.