Physical, geochemical and isotopic applications for the assessment of the refill under tempered climate

The use of nuclear techniques provides data on the origin of humid air masses. The determination of the relation between the average 18O content of precipitations and annuel temperature average on the floor is possible. The system anisotropy is then confirmed. The variations of the composition of the extracted water were put in relation with the isotopic composition of the total dissolved (inorganic) carbon. The 13C content of this isotopic composition gave indications on the isotopic exchange of the dissolved carbonates and the soil mineralogic matrix (author)