2B.4 - Marine erosion creates distinctive coastal landforms and contributes to coastal landscapes. Flashcards Preview

Coastal Landscapes and Change: Enquiry question 1: Why are coastal landscapes different and what processes cause these differences? > 2B.4 - Marine erosion creates distinctive coastal landforms and contributes to coastal landscapes. > Flashcards

Flashcards in 2B.4 - Marine erosion creates distinctive coastal landforms and contributes to coastal landscapes. Deck (8)
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1

What different types of waves are there?

Constructive and destructive

2

What is a temporal scale?

Time scale

3

What is a constructive wave?

A wave with a large swash and a small backwash.

4

What is a destructive wave?

A wave with a small swash and a large backwash.

5

How are the erosion processes influenced by wave type?

Constructive - more abrasion as harder swash.
Destructive - more attrition as more violent waves.

6

Define lithology.

The characteristics of rocks.

7

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.

8

Examples of coastal landforms.

Wave cut notch, wave cut platform, cliffs, cave-arch-stack-stump.