Question

Write about the erosional and depositional landforms of waves.

Answer 1

a. Erosional landforms of waves.

1. Sea Cave: Prolonged wave attack on the base of a cliff erodes rock materials, which results in the formation of caves.
2. Sea Arch: When two caves approach one another from either side of a headland and unite, they form an arch.
3. Sea Stack: Further erosion by waves ultimately leads to the total collapse of the arch. The seaward portion of the headland will remain as a pillar of rock known as a stack.
4. Sea Cliffs: Sea cliffs are strep rock faces formed when sea waves dash against them. The rocks get eroded to form steep vertical walls.
5. Wave cut platforms: Flat surfaces found at the foot of sea cliffs are called wave-cut platforms.

b. Depositional landforms of waves.

1. Beach: Sand and gravel are moved and deposited by waves along the shore to form j beaches. This is the most dominant and constructive work of the sea. Eg. Marina beach, Chennai.
2. Bar: A bar is an elongated deposit of sand, shingler, or mud found in the sea, almost j parallel to the shoreline.
3. Spit: A spit is a ridge or embankment of sediment, attached to the land on one end j and terminating in open water on the other end.