The size and rates of erosional downcutting of individual straths differ from one structural unit to another irrespective of climatic or lithologic controls, implying neotectonic influences (Starkel, 1994; Schumm, 1986; Blum and Tornqvist, 2000; Brocard and van der Beek, 2006).
The rates of erosional downcutting of strath terraces changed between 0.
Rates of Quaternary uplift, estimated from erosional downcutting of individual straths, changed from 0.
In the western portion of the OWC, rates of erosional downcutting and, probably, surface uplift of individual structures tended to increase throughout the Pleistocene, while those in the eastern portion showed a reverse trend.
Climatically-driven delay in erosional downcutting, related to increased accumulation during the last cold stage, does not favour tectonic interpretation of increased erosional dissection in the Holocene.