MEMORIE DESCRITTIVE DELLA CARTA GEOLOGICA D'ITALIA
Abstract
In order to define a global hydrogeological model
of the Friuli alluvial plain, the present work investigates the
relationships between the regional unconfined and multilayered
aquifer systems integrating geological, hydrogeological,
geochemical and isotope data.
The Neogenic and Quaternary mostly clastic sediments
of both continental and marine origin, locally more than
1000 meters thick, gave rise to a sequence of megafan-shaped
progradated sedimentary bodies, both lenghtwise and crosswise
granulometrically differentiated.
The geometry of the relating saturated zone has been reconstructed
by both deterministic and stochastic methods.
By means of the isophreatic map of the High Plain
(APF), the active recharge to the confined system of the Low
Plain (BPF) has been calculated. The groundwater flow conditioning
by means of the regional tecto-dynamics is showed.
The hydrogeological model, integrated with hydrogeochemical
and isotope data collected from wells, springs and
rivers, allowed some considerations about recharge provenience
and hydraulic connection within the confined aquifer system.
