Late-Pleistocene fluvial systems.

Classical models of river incision and aggradation are much too simple for universal application. Although detailed fluvial chronologies may be usefully developed in some local settings, regional correlation requires great caution. River metamorphosis, especially underfitness, was widely achieved during the late Pleistocene. However, this phenomenon involved the adjustment of multiple variables in addition to stream flow. Large-scale flooding was locally important around the many ice margins during the late Pleistocene. In the northwestern United States, catastrophic flooding played a dominant role in the development of landscapes such as the Channeled Scabland. -from Author