Three-dimensional analysis of the Plio-Pleistocene seismic sequences in the
Venice Lagoon (Italy)
L. Tosi, G. Brancolini, L. Carbognin
Institute of Marine Sciences, CNR, Venezia, Italy
M. Zecchin, A. Affatato, L. Baradello
National Institute of Oceanography and Experimental Geophysics, Trieste, Italy
P. Teatini
Dept. Mathematical Methods and Models for Scientific
Applications, University of Padova, Padova, Italy
ABSTRACT
Integrated seismic and well data provide for the first time
a picture of the geological evolution of the Venice area
over the last 5 Ma and a 3D subsoil model, which is fundamental
to prediction of the anthropogenic uplift of Venice
by seawater injection. A Pliocene southward prograding complex
formed a shelf-slope system, whereas subsidence related
to the Apennine foredeep development led to the establishment
of a Early Pleistocene deep-water environment, favouring the
accumulation of a thick turbidite succession. The NE progradation
of the palaeo-Po river delta during the Middle Pleistocene
promoted a drastic environmental revolution, followed by the
deposition of cyclothems linked to glacio-eustatic changes.
