Karl E. Karlstrom, Ryan S. Crow, Lisa Peters, William McIntosh, Jason Raucci, Laura J. Crossey, Paul Umhoefer und Nelia Dunbar: 40Ar/39Ar and field studies of Quaternary basalts in Grand Canyon and model for carving Grand Canyon: Quantifying the interaction of river incision and model normal faulting across the western edge of the Colorado Plateau. In: Geological Society of America Bulletin. v. 119; no. 11/12, 2007, S.1283–1312, doi:10.1130/0016-7606(2007)119[1283:AAFSOQ]2.0.CO;2.
