(a) Sketch map depicting the exposed Variscan domains of western Europe and the location of the inferred suture zones, based on Schulmann et al. (2022). SXT: Saxo-Thuringian suture. (b) Geological map of the eastern French Massif Central showing the main nappe architecture. Are also depicted the locations/names of “Leptynite-Amphibolite Complex” occurrences (in black), adapted from Chantraine et al. (2003).

(a) Carte simplifiée montrant les zones où affleurent les terrains varisques et les sutures supposées. (b) Carte géologique de l’Est du Massif Central français oriental localisant les zones où affleure les "complexes leptyno-amphiboliques".