“…Salt thickness in the core of the anticlines may exceed 10,000 ft, and the salt shows complex deformation and internal faulting (Hite and Lohman, 1973;Cater, 1970). Collapse of the crests may have occurred as late as early Pleistocene time but not earlier than Miocene time, in response to regional uplift and dissolution of nearsurface salt (Cater, 1970;Richmond, 1962;Kitcho, 1981, Sugiura andKitcho, 1981;Biggar and others, 1981 fig. 2).…”