P2B 11Coastal Landforms from Deposition

Front

What are the sources of beach material?

Back

Beach material originates from erosion of nearby cliffs, broken coral and shell fragments, river mouths, and plastic.

Front

What is Longshore Drift?

Back

Longshore Drift is the primary process responsible for transporting sand and shingle along the coastline, occurring when waves approach the shore at an angle.

Front

What are the two main movements involved in Longshore Drift?

Back

Swash (forward movement of water up the beach) and Backwash (water pulling material straight back down the beach slope).

Front

What are beaches and how are they formed?

Back

Beaches are fundamental coastal landforms caused by deposition, occurring where sand or shingles are deposited along the shoreline in shallow water or sheltered bays.

Front

What are the zones of a beach?

Back

Foreshore (area between low and high tide) and Backshore (lies beyond the high tide point).

Front

What are spits and how are they formed?

Back

Spits are long narrow ridges of sand and shingles deposited in shallow sections of coastlines, formed by the deposition of material transported by longshore drift.

Front

What are hooks or recurves in spits?

Back

Hooks or recurves are the curved ends of a spit, caused by wave refraction or wind.

Front

What is a bar in coastal geography?

Back

A bar is a type of spit that completely stretches across a river mouth or bay, formed by longshore drift depositing material across an opening.

Front

What are deltas and how are they formed?

Back

Deltas are depositional landforms found at river mouths, formed when a river carries sediment to the coast and deposits it beyond the river's mouth.