Others

river cliff and slip-off slope

This river feature is formed by the meandering of a river. The sediments that are removed from the outer bank through erosion are carried by the flow of water and deposited along the inner bank. Deposition occurs at the inner bank because the friction between the inner bank and the water is greater than at the outer bank.. This reduces the speed and cause the river to drop its load. Over time, as more sediments are deposited, the water becomes shallower at the inner bank and the river becomes asymmetrical. A gentle slope formed by the deposition of sediments along the inner bank, known as a slip-off slope, is formed. The outer bank, on the other hand, becomes what is known as a river cliff.





Potholes

Potholes are depressions on the river bed that are formed through the process of corrasion, or abrasion.The abrasive action is especially useful downstream of a waterfall and in flood conditions.The pebbles and cobbles that are trapped in slight hollows in the river bed are swirled about in the currents and turbulence of fast-flowing water. They drill holes, enlarging and deepening them. Two or several holes may join up to form larger potholes. As more and more potholes are formed, the river bed is deepened



Cut-off

A cutoff occurs when the neck between river meanders is eroded away and the meanders join to shorten the length of the channel. The slope of the channel increases as well when the river shortens its length.