Fig. 4. Part of an E-W seismic line across the Eastern Depocentre, illustrating the relationship between the early syn-rift, late syn-rift, transitional unit, early post-rift and middle post-rift units. Data reproduced courtesy of Spectrum Energy and Information Technology Ltd. PR=pre-rift; ES-R=early syn-rift; LS-R=late syn-rift; TU=transitional unit; EP-R=early post-rift; MP-R=middle post-rift; LP-R=late post-rift; P-US=post-uplift sag. See Fig. 1 for location.