Coastal and Oceanic Landform ( 51. Tombolo )

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Tombolo near Karystos, Euboea, Greece

• A tombolo is a deposition landform.

• It is an island  attached to the mainland with narrow piece of land.

• It called as a spit or bar.

• Once attached island called as  tied island.

• Several islands tied together by bars are called a tombolo cluster.

• Two tombolos  form an enclosure ( lagoon).

• That normally fills sediment.

• Tombolos considered as isthmus.

Angel Road Shodo Island,Japan

• Formed by wave refraction.

• They  slowed by shallow water surrounding it.

• These waves refract / bend around the island.

• The wave pattern created by water movement.

• The beach sediments are moving by lateral transport on the lee side.

• The beach shoreline, known as a spit.

• It will connect  island & form a tombolo.

• Tombolos are more prone to natural fluctuations of profile.

• Tombolos are made through the construction of roads / parking lots.

• Tombolos are small piece of land(island).

e.g.

• The Angel Road of Shodo Island, Japan

• Aupouri Peninsula, New Zealand

• Ayre o Swinister, Shetland Islands, Scotland

• Barrenjoey Headland, Pittwater, New South Wales, Australia

• Beavertail Point, Conanicut Island, Rhode Island

• Cádiz, Andalucía, Spain