P1B 10Coastal Landforms Caused by Erosion

Front

What are coastal landforms a result of?

Back

Coastal landforms are a result of ongoing processes of erosion and deposition.

Front

What role does erosion play in coastal landforms?

Back

Erosion is a primary force in the creation and evolution of various coastal features.

Front

How do different types of rock affect coastal landform formation?

Back

Different types of rock and their varying resistance to erosion play a significant role in the formation of specific landforms.

Front

What are headlands and bays, and how are they formed?

Back

Headlands and bays are formed where coasts are composed of alternating sections of hard and soft rocks. The softer rocks erode faster, forming bays, while the more resistant harder rocks remain, forming headlands.

Front

Describe the process of coastal cliff erosion.

Back

Coastal cliffs are eroded by the sea attacking the base (marine erosion), forming a wave-cut notch. Subaerial weathering weakens the top, causing collapse. The sea removes fallen material, leading to cliff retreat.

Front

What is a wave-cut platform?

Back

Wave-cut platforms are flat rocky surfaces created by wave erosion, typically found at the base of receding cliffs and exposed during low tide.

Front

How are sea caves, sea arches, and sea stacks related?

Back

These features represent stages in the erosion of headlands: Sea caves form at weak spots, sea arches form when caves connect, and sea stacks form when arches collapse.

Front

What are stumps in coastal landforms?

Back

Stumps are remnants of eroded sea stacks.

Front

What do topographic maps show regarding coastal features?

Back

Topographic maps use symbols to represent coastal features such as sand, rock or coral reefs, rock bare or awash, groups of rocks, exposed wrecks, and depth curves.