2 Types of beaches

2 Types of beaches

Beaches a beach refers to the accumulation of sand, mud, shingle, pebbles, and other unconsolidated materials forming a gently sloping platform on a low-lying coast. Beaches are normally formed between the low tide level and high tide level on a gentle sloping coastline.

  • beaches are formed are formed when Constructive waves remove materials from the bottom of the sea and deposit them at the shore where they accumulate.
  • The materials may be submerged or exposed by tides for example Nyeri beach in Kenya near Mombasa.

Types of beaches

Barrier beach– refers to a long shore ridge of sand deposits lying parallel to the coast and often separated from coast by a lagoon on gentle sloping coastline by long shore drift and waves breaking off shore (before reaching the coast)

Barrier beach usually develops from Materials deposited on the continental shelf as off shore sand bars. More deposition increases the height of the bar until it appears above the sea level.

High tides and wave action gradually move the deposition to the mainland to form barrier beaches for example at Mombasa.

When the deposit is not joined to the coast is called a barrier island.

Bay head beach– refers to a crescent of sand and shingle lying between headlands.

Bay head beaches are formed when long shore drift and constructive waves deposit materials at the heads of bays between headlands. Bay head beaches do not extend to the headlands where wave erosion is dominant

Examples include Ggaba, Lutembe, and Lido beach in Entebbe on Lake Victoria.


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