Which geomorphic effect accelerates floodplain widening due to lateral erosion in alluvial rivers?

💡 Explanation

Meander cutoffs cause accelerated floodplain widening, because redirected channel flow rapidly erodes the newly exposed bank; this is channel avulsion. Sediment deposition happens elsewhere, therefore diverted flow increases localized erosion of cut banks, rather than stabilizing the river.

• Which deformation regime results from differential cooling lava?
• Which outcome accelerates when earthworm population densities increase?
• Which mechanism creates natural levees bordering a mature alluvial river?
• Which outcome results when shallow crust fault locking exceeds shear stress limits?
• Which mechanism deflects surface ocean currents, inducing gyres, due to Earth's rotation?
• Which mechanism causes uplift and tilting adjacent to a normal fault during crustal extension?