Jp. Faillat et C. Drogue, HYDROCHEMICAL DIFFERENTIATION OF SUPERPOS ED AQUIFERS IN WEATHERED AND DECAYED ROCK AND FRACTURES IN GRANITIC BASEMENT, Hydrological sciences journal, 38(3), 1993, pp. 215-229
Physico-chemical and hydrochemical measurements have been made at an e
xperimental site equipped with seven boreholes (26 to 100 m deep) in f
ractured granites and seven piezometers (1 to 3 m) in colluvial and we
athered material. It has been found possible to differentiate between
those two types of formation from a hydrochemical point of view and to
deduce from this their degree of connectivity and their flow regimes.