Steeply dipping sandstone and conglomerate beds crop out in Painted Canyon. The gray- and buff-colored beds are part of the Canebrake Formation (Pleistocene). The beds of conglomerate and muddy sandstone represent sediments deposited by flashfloods and debris flows on alluvial fans draining upland regions to the east of Coachella Valley. The beds are locally broken and offset by faults associated with the San Andreas Fault system that has its southern terminus in the Salton Sea (Sylvester and Smith, 1987). |