The External Aar Massif is situated north of the Rote Kuh-Gampel Shear Zone and makes up almost the entire width of the Aar Massif in its central part. North of the Lötschental, it overthrusts the Gastern Submassif with a contact marked by a thin band of Triassic and Jurassic sediments («Jungfrau Wedge»), which includes overturned sediments of the External Aar Massif. Several large-scale structures follow the general strike of the External Aar Massif. They include longitudinal faults and very tight synclines exposing Late Paleozoic and Mesozoic sediments.
externes Aar-Massiv (Sartori et al. 2017), External Aar Massif (TK500 / Gouffon et al. 2024)
