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Karstologia, 1984, Issue 3, p. 70-75
Hydrogéologie karstique des Alpes-Maritimes
Baissas, P.
Abstract:
Karst hydrogeology in the Alpes-Maritimes - In the Marguareis, the systems penetrate very quickly by transverse faults, to reach the impermeable basement and then follow the dip. All the waters, even those on the French side, belong to the Pô basin. In the Roya arc, underflows are to be found going round the base of the Argentera-Mercantour. In the Nice arc, the karstification depends principally on tectonic factors and according to the places, the water follows either the overlaps or transverse faults. In the Grasse plateaus, the galleries follow at the outset the slopes and the dips of the synclinal hinges; the tectonic factors determine the location of the resurgences ; at depth, the karst is always phreatic, with relations between tectonic compartments during floods. In the cover of the Tanneron-Esterel basement and Barrot Dome, lithological factors determine flow.
Karst hydrogeology in the Alpes-Maritimes - In the Marguareis, the systems penetrate very quickly by transverse faults, to reach the impermeable basement and then follow the dip. All the waters, even those on the French side, belong to the Pô basin. In the Roya arc, underflows are to be found going round the base of the Argentera-Mercantour. In the Nice arc, the karstification depends principally on tectonic factors and according to the places, the water follows either the overlaps or transverse faults. In the Grasse plateaus, the galleries follow at the outset the slopes and the dips of the synclinal hinges; the tectonic factors determine the location of the resurgences ; at depth, the karst is always phreatic, with relations between tectonic compartments during floods. In the cover of the Tanneron-Esterel basement and Barrot Dome, lithological factors determine flow.
Keywords: karst - limestone - aquifer - hydrogeology - hydrogeological gap - maritime-alps - trias - jurassic.