Physical properties of tuffs from a scientific borehole at Alban hills volcanic district (central Italy)

Under increasing effective pressure a profound influence on the transport properties is observed. Permeability ranges from the order of 10− 18 m2 for the Pozzolane Rosse unit to the order of 10− 15 m2 for the Tufo Pisolitico di Trigoria unit, in good agreement with the shallow aquifer circulating in the shallower units.