Figure 8: Seismic profile across inner Channel 2 and cataract headwall.
From: Two-stage opening of the Dover Strait and the origin of island Britain
(a) Seismic section and (b) geological interpretation. A prominent scour is present at the base of the headwall that we interpret as a plunge pool. Note that the floor of the Lobourg Channel upstream of cataract cross-cuts a sediment-infilled Fosses Dangeard depression eroded into Cretaceous bedrock. Vertical exaggeration ∼4. M, seabed multiple. Location of seismic profile is indicated in Fig. 7b and Supplementary Fig. 2.
