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We use a seismic-modelling methodology to validate the interpretation of a deep-crust seismic survey. We compute a zero-offset stacked section, with a single simulation, by using the exploding-reflector concept and the non-reflecting wave equation. The geological model is verified by computing exploding-reflector experiments and comparing them with the real stacked section. In the final phase of the modelling study, we use the variable-density acoustic wave equation to compute common-shot and common-offset synthetic surveys, which are used to obtain the synthetic stacked time section using the standard processing sequence. These simulations and verification of the geological model by post-stacked migration constitute an additional test. The methodology is applied to a seismic line from the Italian deep-crust exploration project CROP, acquired in the Adriatic Sea. [ABSTRACT FROM AUTHOR]