Fig. 3: Landslide-dam impacts on the Congo Canyon thalweg.
From: Carbon and sediment fluxes inhibited in the submarine Congo Canyon by landslide-damming
a,b, Plan view of the thalweg profiles in 2005 (a) and 2019 (b). Knickpoints (K1–K4) identified in c are shown in b. c, Thalweg profiles normalized for distance for 2005 and 2019. The profiles show the large amount of infill that has occurred post-canyon-flank collapse. The 2019 profile also shows the presence of four new knickpoints. The largest knickpoint (K4) is situated where the newly incised channel descends over the landslide-dam. The smallest knickpoints (K2 and K3) represent the up-canyon initiation of the small channel visible in Fig. 2b. The proximal knickpoint (K1) is the result of a further channel incising into the infill where the canyon is most constricted.
