Structural interpretation of a depth-converted composite seismic reflection profile (line drawing (A)) across the eastern necking domain of the southern Red Sea. The section is calibrated by one exploration well, two shallow wells and outcrop observations. The transition between the necking and the distal crustal domains is constrained by the tectonic model of Delaunay et al. (2023). Outcrop synthetic section from Gillman (1968) and Schmidt et al. (1983). The correlation (D) is flattened at the base of the Salt Unit (Mansiyah Fm). See Figure 3B for location.