Age of Carving the Westernmost Grand Canyon: Conflicts and Potential Resolutions that Reconcile Geologic and Thermochronologic Data

Carmen Winn1, Karl E Karlstrom1, Shari Kelley2, David L Shuster3 and Matthew Fox3, (1)University of New Mexico Main Campus, Albuquerque, NM, United States, (2)New Mexico Bureau of Geology and Mineral Resources, Socorro, NM, United States, (3)University of California Berkeley, Department of Earth and Planetary Science, Berkeley, CA, United States