[Retracted] Initiation of Triangle Zones by Delamination, Shear, and Compaction at the Front of Fold-and-Thrust Belts

Figure 14

The bulk material is frictional, cohesive, and compactant. Its tensile strength is set by the Coulomb line (a). The décollement is frictional and dilatant. Its compressive strength is infinite (b).

(a)

(b)