Bouches-du-Rhône ; Drainage network ; France ; Geochemistry ; Karst ; Marseille ; Model ; Provence-Alpes-Côte d'Azur ; Salinity ; Sea level ; Speleology ; Spring ; Submarine canyon ; Underground water
signature of the titanium in the surface sediment supports the model of a sea water aspiration in a deep gallery connected to the Cassidaigne canyon. This speleological model of sea aspiration explains why all the attempts to diminish the salinity