Figure 7--Model 3 of an inverted double differential load on a ductile substrate. (a) Top shot at the end of load 1. Deformation consists of a delta-top graben and associated fold-thrust belt at the foot of the slope. (b) Top shot at the end of load 2. The delta top has prograded out above the original slope and toe fold-thrust zone. New delta-top graben is heavily segmented due to location above the former fold-thrust belt. (c) Top shot at the end of contraction. The structure mainly consists of major anticlines and intervening synclines. All structures were active simultaneously. (d) Drawing interpreting the top shot at the end of load 2. (e) Interpretation of top shot and the end of contraction.