Bedrock rivers offer larger erosive resistance and therefore less incision capability as alluvial streams do.
Changes occur very slowly and response to tectonics or eustathism might be not on phase at the different
stream reaches. Along a bedrock gorge, different reaches show changes in hydraulic conditions and rather
diverse responses on floods. According to the change in slope and transversal sections, erosive and agradational
processes are fluctuating in relation to changes in velocity and load transport capacity. Due to the lack of
alluvial floodplain, depth increase abruptly and accordingly stream power acquires a high geomorphic
effectiveness. As it has been observed on the Barranco del Infierno after the occurrence of a low frequency
flood, alluvial deposits have been strongly displaced, resulting in the emptiness of potholes and agradation at
transfer reaches. The result of a medium to high magnitude flood is a radical change on fluvial landscape with
large morphological modifications on bed and banks, bars and even on lateral slopes
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