Exhumation and Surface Evolution of the Western High Atlas and Surrounding Regions as Constrained by Low‐Temperature Thermochronology

The Moroccan High Atlas, the Anti‐Atlas belts, and the Siroua volcanic massif form an orographic system locally risen to elevations over 4 km. Topographic growth of this system occurred by Cenozoic transpressive inversion of Mesozoic rift structures concomitant with volcanic activity and related mantle processes. In order to constrain the topographic growth, we analyze the regional‐scale exhumation pattern, and we compare it to physiographic features. We contribute 35 new mean (U‐Th‐Sm)/He and 24 new fission track ages on apatite from the High Atlas and Anti‐Atlas, which all together range from 196 to 5 Ma. In the Anti‐Atlas, we find that the rate and amount of Cenozoic exhumation are