Figure 7
Schematic cartoon showing our hypothesis to explain the mechanism of the accretionary prism collapse due to the lateral dislocation of the accretionary prism seaward block. (a) The accretionary prism is obliquely truncated by a strike-slip fault. (b) The seaward block of the prism is displaced, and the high-angle fault plane is exposed, which over-steepens the prism and leads to its collapse. (c) The collapse extends along the fault scarp as displacement of the seaward block continues, and the landward part of the prism collapses seaward as a large-scale slide mass. The original strike-slip fault is inferred to bend seaward due to the seaward slide of the collapsed prism. Figures were produced using Adobe Illustrator CS6.
