Incision history of Zion Canyon, western Colorado Plateau, from new apatite fission track and (U-Th-Sm)/He data

Audrey Margirier1, Stuart N Thomson2, Peter W Reiners2 and Georgina E King1, (1)University of Lausanne, Institute of Earth Surface Dynamics, Lausanne, Switzerland, (2)Department of Geosciences, University of Arizona, Tucson, AZ, United States