Glacitectonic evidence of ice sheet interaction and retreat across the western part of Dogger Bank (North Sea) during the Last Glaciation

High-resolution 2D seismic data from the western side of Dogger Bank (North Sea) has revealed that glacigenic sediments Formation record a complex history sedimentation and penecontemporaneous, large-scale, ice-marginal to proglacial glacitectonism. The resulting assemblage glacial landforms interplay between two separate ice masses revealing Late Devensian sheet dynamics across were far more than previously thought, involving North Sea lobe British Irish Ice Sheet, advancing west, interacting with which expanded north. active northward retreat resulted in development arcuate thrust-block moraines (≤ 15 km wide, > 30 long) composed highly folded thrust sediments, separated by sedimentary basins meltwater channels filled outwash. impact was restricted margin led deep-seated (100–150 m thick) glacitectonism response ice-push west. During earlier expansion lobe, this fold initially occupied frontal marginal position changing lateral as continued expand south. structural relationships glacitectonic complexes indicates these interacted along Bank, inundation area probably occurring during last glaciation when sheets attained their maximum extents.