COASTS 2.6 Flashcards Preview

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Flashcards in COASTS 2.6 Deck (13):
1

Name the three types of weathering

Mechanical, biological, chemical

2

Where are pan rock formations most common?

Here shore

3

Where are loaf rock formations most common?

Backshore

4

Describe the surface of a pan rock formation

Concave

5

Describe the surface of a loaf rock formation

Convex

6

As temperature increases, weathering changes from ______ to ______

Mechanical to chemical

7

Name one biological weathering process

Boring molluscs

8

Name two physical weathering processes

Frost shattering and salt crystallisation

9

Describe the process of salt crystallisation

Water from waves that crash against the rock evaporates and sodium is left in the joints
The salt crystals grow and exert pressure forcing some the rocks to crack and break.

10

Define weathering

The breakdown of rock in situ

11

Rock type at eagle hawk neck, Tasmania

Siltstone/sedimentary rock

12

Loaf rocks are less vulnerable to marine processes. True or false

False

13

Define carbonation

The breakdown of limestone by carbonic acid