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The extension of the Late Weichselian/Late Devensian ice sheets in the North Sea Basin
Authors:Jürgen Ehlers  Robin Wingfield
Abstract:The distribution of large channel-like features, comprising Weichselian/Devensian incisions, in the western North Sea provides evidence for a much larger extension of the last ice sheet than currently assumed. Morphological comparison of the incisions with those in North Germany and Poland reveals a striking similarity in shape and distribution. The features on the North Sea floor are interpreted as being formed by meltwater erosion within the margin of the ice sheet. The widespread absence of Weichselian/Devensian till in the area under consideration may be attributed to later erosion. Large-scale reworking and redistribution of sediments is indicated by the complete sediment infill of the majority of the incisions.
Keywords:North Sea  northwest Europe  ice sheets  meltwater erosion  glacially-related incisions  Weichselian/Devensian ice margins
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