“…We consider that between late Eocene and late Oligocene time, flat‐slab subduction of the Farallon slab behind the triple junction is the most likely scenario (Figure 7a1). This is suggested by the fact that the deformation migrated toward the backarc region, with associated onset of inversion of rift structures in the Eastern Cordillera of Colombia (Table S1 in Supporting Information ) (e.g., De la Parra et al., 2015; E. A. Gómez et al., 2003; Martinez et al., 2022; Mora et al., 2010; Mora, Reyes‐Harker, et al., 2013; Mora, Blanco, et al., 2013; Parra et al., 2009; Rosero et al., 2022; Sánchez et al., 2012; Saylor et al., 2012), coinciding with a deformation phase in eastern Panama (Barat et al., 2014; Montes et al., 2012). This interpretation is additionally supported by the reduction in Farallon‐related magmatism activity throughout the late Eocene‐Oligocene on both the PCA and SA margins (Leal‐Mejía et al., 2019; Wegner et al., 2011).…”