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Compilation of seven cross-sections across the Pyrenean retroforeland system from west to east and located on Figure 3. Authors’ estimates of retrowedge shortening are shown in brackets. Estimates derived from cross-section restoration are indicated with an R. Sections are simplified and adapted from (a) and (b) Labaume and Teixell (2020) and Jourdan et al. (1998) for northern basins (10–15 km), (c) Espurt et al. (2019a, b) (R ∼ 42 km), (d) Rougier et al. (2016) and Angrand et al. (2022) (R ∼ 12.5 km), (e) Ford et al. (2016) (R ∼ 30 km), (f) Grool et al. (2018) (R ∼ 19 km) and (g) Ford and Vergés (2021) (R ∼ 10–12 km). Estimates of shortening exclude emplacement of the Internal Metamorphic Zone (IMZ) and closure of exhumed mantle domains. (h) Graph of pinchout migration of the northern margin of the Aquitaine basin on sections S2 to S6. Colored bars represent orogenic stages as in Figures 5b and 5c.
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