Introduction and Glossary

In this wiki, you will find information on coastal landforms, and their formation, along with images to help your understanding. Hope this helps!

Glossary-

A

Abrasion-Bits of rock and sand in waves grind down cliff surfaces like sandpaper.
Attrition-Waves smash rocks and pebbles on the shore into each other, and they break and become smoother.

B

Backwash- When a broken wave travels back down the beach by the pull of gravity.
Bay- A hole in the land next to a sea or lake between two headlands.

C

Constructive Wave- A wave in which the sawsh is stronger than the backwash. It doesn't have that much energy. This deposits sediment on the beach, building it up.
Corrosion- This is when weak acids or salts in the seawater dissolve the cliff's rock.

D

Destructive Wave- A wave in which the backwash is stronger than the swash. Associated with stormy weather, it has alot of energy. This takes away sediment from the coast, and is associated to erosion.

E

Erosion- is the process of weathering and transport of solids ex: sediment, soil, rock and other particles in the natural environment or their source and deposits them elsewhere.

F

Fetch- The distance wind blows over the surface of the water

G

H

Headland- an area of land that is surrounded by water on three sides.
Hydraulic Action-Air may become trapped in joints and cracks on a cliff face. When a wave breaks, the trapped air is compressed which weakens the cliff and causes erosion

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L

Longshore Drift- The movement of materials along a coastline.

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S

Sea Cave-
Solution-Acids contained in sea water will dissolve some types of rock such as chalk or limestone.
Swash- The forward movement of a wave when it breaks.
Spit-A spit or sandpit is a deposition landform found off coasts.
Salt Marshes- An environment in the upper coastal intertidal zone between land and salt water.

T

Tombolos- is a deposition landform in which an island is attached to the mainland by a narrow piece of land such as a spit or bar.

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W

Weathering-The breaking down of Earth's rocks, soils and minerals through direct contact with the planet's atmosphere.

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