Characterisation of Middle–Late Pleistocene groove-and-ridge landforms incised across the Dover Strait

Recent investigations have revealed several sets of linear ridges and grooves located in the seafloor of the submarine Dover Strait. The formation of these features is associated with the occurrence of megaflood flows during Middle–Late Pleistocene glacial stages. These megaflood events are also linked to the formation of a prominent inner channel within the Lobourg Channel and the incision of streamlined islands and longitudinal scours into its bed. However, the erosional origin of the linear ridges and grooves and their possible relationship to megaflood erosion have never been demonstrated.