erosional and depositional landforms

Lucian erosion

Occurs vertically and laterally using processes of hydraulic action, attrition, abrasion, corrosion, corrasion and cavitation

Fluvial transportation

Processes of flotation, traction, saltation, solution, suspension

Erosional features

V shaped valley

Oxbow lakes

Meanders

Interlocking spurs

Waterfalls

Depositional features

Floodplains

Deltas

Levees

Attrition

Crashing into each other

Corrasion (abrasion)

Hitting and rubbing causing pieces to break off

Corrosion (solution)

Water dissolving a rivers’ load

Cavitation

Air bubbles trapped in the water get compressed into small spaces like cracks in rivers banks

Hydraulic action

Water and air forced into cracks causing erosion through increased pressure

Traction

Largest rocks are rolled along the bed of the river by force of water

Saltation

Load bounces along river bed

Suspension

Water carries smaller and lighter particles

Solution

Dissolved materials are transported in water as a solution

Floatation

Material is transported on the surface of the river while floating

Interlocking spurs

River follows the path of the easiest rock to erode

Meanders

Bends in the river, faster water outside of the bends leads to river cliff

Slow moving water inside bend deposits load leading to slip off slope

Oxbow lake

Curved area of stagnant water detached from the main river

Waterfall

Where harder rock lies over a softer one, river flows over edge of harder rock into plunge pool, it erodes away softer rock below creating an overhang

Braided channel

Subdivision of a river into several channels caused by deposition

Delta

Build up of sediments, water velocity slowing down and river having less energy to carry the sediment

Floodplains

Flat valley floors outside of banks

Levees

Elevated banks of alluvium