Geography Notes on Landforms created by the action of Sea Waves

Sea cliff:

• The most widespread landforms of erosional coasts are sea cliffs.
• The base of the rocks on the coast gets eroded because of the impact of the sea waves and notches develop in these rocks.
• The crest of the rock overhangs the notch.
• These notches in the rocks gradually extend landwards over a period of time, then the crest falls and a steep cliff which has receded away from the sea is formed.

Sea Cave:

• Rocks on the cost have many cracks.
• These cracks become wider and wider with the impact of the waves, creating small caves.
• These types of caves are common on coastal area.

Beach:

• The fine sand and other material that flows along with the sea waves get deposited in a direction parallel to the sea cost.
• The deposition of sand and other material is called as beach.

Sand Bar:

• A deposition of sand which results in a long, narrow embankment in the sea near the cost is called a sand bar.

Lagoon:

• A shallow lake is formed between the sand and the sea coast.
• It is called a lagoon.
• Such types of Lagoons lake are called Kayal in Kerala.