The preservation of bedforms related to supercritical flows and hydraulic jumps is commonly
considered to be rare in the geologic record, although these bedforms are known from a
variety of depositional environments. This field-based study presents a detailed analysis of
the sedimentary facies and stacking pattern of deposits of cyclic steps, chutes-and-pools,
antidunes and humpback dunes from three-dimensional outcrops. The well exposed Middle
Pleistocene successions from northern Germany comprise glacilacustrine ice-contact …