Coastal Erosion (Leaving Cert Geography): Flashcards
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What are hard coastlines made of?
What are hard coastlines made of?
Hard coastlines have rocky outcrops and slow erosion.
What types of materials form soft coastlines?
What types of materials form soft coastlines?
Soft coastlines consist of clay, sand, or shingle.
What is hydraulic action in coastal erosion?
What is hydraulic action in coastal erosion?
Force of waves hitting the coast, especially effective in storms.
What is cavitation's role in coastal erosion?
What is cavitation's role in coastal erosion?
Air bubbles implode, causing rock erosion and damage.
What occurs during abrasion/corrasion?
What occurs during abrasion/corrasion?
Waves carry loads that hit cliffs, eroding them significantly.
What is the process of attrition in coastal erosion?
What is the process of attrition in coastal erosion?
Stones collide, breaking down to smooth, rounded shapes.
How does solution/corrosion affect limestone?
How does solution/corrosion affect limestone?
Limestone dissolves in seawater, aiding erosion processes.
How does slope affect coastal erosion rates?
How does slope affect coastal erosion rates?
Steeper slopes lead to faster erosion due to wave force.
What differentiates destructive and constructive waves?
What differentiates destructive and constructive waves?
Destructive waves cause more erosion; constructive waves deposit.
Why do irregular coastlines experience differential erosion?
Why do irregular coastlines experience differential erosion?
Headlands erode faster, while bays accumulate sediment.