P121 Very High–Resolution 2D and 3D Seismic Data and AVO Analysis for the Study of Sediments Discontinuities in Lake Geneva D. Hammami* (University of Lausanne) & F. Marillier (University of Lausanne) SUMMARY The amplitude versus offset (AVO) method is well known to assess variations in physical properties of sediments such as porosity (void percentage filled with gas or fluid) bulk modulus and fluid density. Changes of these properties affect the sediment P- and S-wave velocities and their density. We used this method coupled with preserved amplitude processing to better understand the properties of different sediments in river deltas in Lake


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