Structural interpretation of a depth-converted composite seismic reflection profile (line drawing (A)) across the eastern necking domain of the northern Red Sea. The section is calibrated by four exploration wells. The transition between the necking and the distal crustal domains is constrained by the tectonic model of Delaunay et al. (2023). The correlation (D) is flattened at the base of the Salt Unit (Mansiyah Fm). See Figure 3A for location.