The significant landforms resulting from fluvial erosion by streams include river valleys, waterfalls, pot holes, structural benches, river terraces, river meanders, ox-bow lakes and peneplians etc. Pebbles will only be able to erode a river’s bed though if the rock the pebble’s made of is stronger than the rock the river bed is made of.V-Shaped valleys are found in the upper course of the river and are a result of both erosion by the river and weathering. This causes the flow of the river to become irregular and the maximum flow is concentrated on one side of the river.

This increases erosion on one side of the river and increases deposition on the other causing the river’s channel to appear to bend. These riffles and pools develop at equal points along the river channel with each pool being about 5× the length of the channel.In a pool, the channel is more efficient, while at a riffle, the channel is less efficient.
The Nile Delta, Egypt) are shaped like a triangle (which is where the term delta comes from, the Greek letter delta Δ) and form when a river meets a sea with alternating current directions that shape the delta so that it looks like a triangle.Cuspate deltas (e.g. The largest & heaviest load is deposited first and closest to the river bank, often on the very edge, forming raised mounds. Weathered material from the valley sides gets deposited in the river.

They extend reasonably far into a body of water and form when the river’s current is stronger than the sea’s waves. Oxbow lakes are an evolution of meanders that undergo extensive deposition and erosion. River landscapes change as you go downstream from the source to the … The processes of erosion and deposition create different river landforms. V-Shaped valleys are deep river valleys with steep sides that look like a letter V when a cross section of them is taken, hence the name. In cold, wet climates, freeze thaw weathering is abundant and rainwater can act as a lubricant, aiding mass movements. Deltas are made up of three sediment beds that have been sorted by the size of the sediment. They’re found in the The creation of eddie currents as a result of bedload in a river.As these depressions deepen, pebbles can become trapped in them.
In the upper course of a river, its load is large and mainly transported by traction along the river bed. It too is composed of coarse sediment but, unlike the foreset bed, the topset bed doesn’t dip, it’s horizontally bedded.Deltas can take on many different shapes. The finer material is deposited further away from the banks causing the mounds to appear to taper off.

Once the river’s discharge exceeds its bankfull dischargeDeltas are depositional landforms found at the mouth of a river where the river meets a body of water with a lower velocity than the river (e.g. The steepness of the valley sides and whether the valley actually looks like a V is dependent on the climate, vegetation and rock structure among things. As the river flows over the resistant rock, it falls onto the less resistant rock, eroding it and creating a greater height difference between the two rock types, producing the waterfall.When water flows over the waterfall it creates a plunge pool at its base and the splashback from the falling water undercuts the resistant rock. As we’ve A braided channel is a type of channel that is divided into smaller sub-channels by small, temporary islands called A heavily braided section of the Tagliamento’s channel in Italy.Floodplains are large, flat expanses of land that form on either side of a river. A riffle is a a shallow section of a channel while a pool is a deep section.