(A) Low-temperature thermochronology age patterns predicted for the four low-temperature thermochronometers considered in this study for Model A (Fig. 1). (B) associated, first-order trajectories (arrows) of particles (coloured circles). Low-temperature thermochronometers are apatite (U-Th)/He (AHe), apatite fission-track (AFT), zircon (U-Th)/He (ZHe) and zircon fission-track (ZFT) systems. Path and particle colours correspond to the domain colour scheme defined in Figure 1. The different thermochronogical age signatures between upper plate and lower plate is clearly apparent. For instance, propagation of thrusting toward the proforeland is well depicted by younging syn-convergence age pattern for ZHe, AFT and AHe systems. In contrast, older pre-orogenic ages are preserved in the upper plate (retro-side of the orogenic wedge).