GENERAL GEOLOGY

Detailed explanation-1: -This continual process of erosion of the outer bank and deposition on the inside bank causes the migration of meanders and formation of oxbow lakes as the meander necks are narrowed and eventually cut through by the river.

Detailed explanation-2: -Over time, this means that erosion occurs on the outside of meander bends and deposition occurs on the inside. This process can lead to formation of one of Geography’s classic landforms, Ox bow lakes.

Detailed explanation-3: -Meanders change position by eroding sideways and slightly downstream. The sideways movement occurs because the maximum velocity of the stream shifts toward the outside of the bend, causing erosion of the outer bank.

Detailed explanation-4: -The lateral erosion on the outside bend causes undercutting of the river bank to form a river cliff . There is less water on the inside bend of a meander so friction causes the water to slow down, lose energy and deposit the material the river is carrying, creating a gentle slope.

Detailed explanation-5: -A meander is one of a series of regular sinuous curves in the channel of a river or other watercourse. It is produced as a watercourse erodes the sediments of an outer, concave bank (cut bank) and deposits sediments on an inner, convex bank which is typically a point bar.