The interaction of land and sea creates various topographical features of geographical importance. Some of these features are rocks-formed by erosion due to waves and some are shore-related features formed by sedimentation or shore-eroding forces of the waves.
♦ The most common features of seashore are beaches. They are made up by sedimentation of eroded material that has been transported from elsewhere and deposited by the sea.
♦ The second are spits that are created by the deposition. They are actually extended stretches of beach material that project out in the sea and all joined to the coastal plain at one end.
♦ A spit that connects an island to the mainland is known as a tombolo.
Chesil Beach, which connects the Isle of Portland to the mainland of the Dorset coast, is an example of tombolo.
