Advanced processing of seismic data in Central Adriatic Basin to highlight Plio-Quaternary features

The geological setting of the Central Adriatic Basin is characterized by the presence of several sedimentary features originated during the growing up of the Dinaric and Apennine Chains. The migration of these fronts towards the axis of the Adriatic Sea, determined the Plio-Quaternary clastic sequence (Channel et al., 1979). During the Lower Pliocene, the migration of the Apennine Chain produced the west-ward tilting of the Adriatic foreland, causing a sedimentary wedge and a thickness of sub-horizontal Pliocene deposits, covered by the Quaternary prograding sequence. These last are visible on the seismic profile ADRIA 95 located in the western portion of the Central Adriatic Basin. The profile was partially processed by Geletti et al. (2008) and now we decided to improve the elaboration of the seismic signal to better define the reflectors characterizing the Plio-Quaternary sequence, the recent deformation of the shallower layers and some bright spots, probably associated to gas presence. We applied a standard processing flow, testing in particular multiple reflections attenuation methods, pre-stack deconvolution techniques, stacking velocity analysis and depth migration within the first 2 sec TWT of the recording trace. The bright spots have been focused by seismic attributes analysis.