Meander

• River flows fastest on the outside of a bend increasing erosive power.
• Add processes and explanations (4-6 marks)
• This leads to the undercutting of the outside of the bend causing river cliffs to form.
• The river flows slowest on the inside of the bend leading to deposition.
• Helicoidal flow is a corkscrew motion which transports materials from the river cliff across the river to the inside bend forming a slip off slope (river beach).
• This makes the meanders pronounced over time.
• Meanders migrate downstream as erosion continues.
• An example of a meander is on the River Thames in London