Flashcards in 2B.4 - Marine erosion creates distinctive coastal landforms and contributes to coastal landscapes. Deck (8)
What different types of waves are there?
Constructive and destructive
What is a temporal scale?
What is a constructive wave?
A wave with a large swash and a small backwash.
What is a destructive wave?
A wave with a small swash and a large backwash.
How are the erosion processes influenced by wave type?
Constructive - more abrasion as harder swash.
Destructive - more attrition as more violent waves.
The characteristics of rocks.
How does lithology affect the rate of erosion?
Igneous rocks -
very slow, because they have interlocking crystals.
Metamorphic rocks - Slow, because all the crystals are in one direction making them weak.
Sedimentary - fast, because they are geologically younger and have fractures and fissures.