From two way time to depth and pressure for interpretation of seismic velocities offshore: Methodology and examples from the Wallaby Plateau on the West Australian margin

► Properly conditioned stacking velocities are useful for lithology interpretation. ► Water-depth adjustment to velocities is needed for meaningful interpretation. ► Velocities as functions of pressure are useful to interpret lihology offshore. ► DDRS/SDRS may not be predominantly volcanic features as earlier thought. ► Substantial presence of sediments in upper DDRS/SDRS is possible.