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Geography - coasts > Weathering > Flashcards

Flashcards in Weathering Deck (7)
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1
Q

what does sub aerial mean?

A

Non marine (not involved with sea)

2
Q

What is weathering?

A

The breakdown of rocks in situ

3
Q

Example of physical weathering?

A

Freeze thaw weathering

4
Q

What is salt crystallisation?

A

Water gets in cracks - evaporates - salt left behind - expands and exerts pressure

5
Q

What is biological weathering?

A

Paddocks and sea weed stuck to rocks and breaks off

6
Q

What is chemical weathering?

A

A change in chemical composition of rock which weakens it

7
Q

What is carbonation?

A

Acidic rain water dissolves limestone