North Antrim Coast

Question 1

1. Sedimentary

Answer 1

Sandstone/limestone

Deposited at bottom of ocean

Question 2

2. Sedimentary

Answer 2

Sandstone + coal deposits

NI was at equator so tropical

Question 3

3. Sedimentary

Answer 3

Chalk layer

River eroded V-shaped valleys

Question 4

4. Igneous

Answer 4

Basalt
Lava flooded valleys with basalt
+ layer of basalt on top

Question 5

5. Sedimentary

Answer 5

Laterite

Basalt had iron which oxidised and rusted into soil

Question 6

6. Igneous (2 parts)

Answer 6

Basalt
Collonnade - perfectly made hexagonal columns - Bottom lava cooled slowly since next to soil
Entablature - chaotic cap - top lava cooled quickly by air and rivers

Question 7

7. Sedimentary

Answer 7

Laterite
Oxidised basalt into soil
Now eroded and weathered away

Question 8

8. Igneous

Answer 8

Basalt

Collonnade at bottom and entablature at top

Question 9

9. Glaciation

Answer 9

Glaciation period carved U-shaped valleys (down to chalk layer)

Question 10

10. Till

Answer 10

Till collected at bottom of valleys (glaciers pushed material)

Question 11

11. Intrusions

Answer 11

Volcanic intrusions left dikes (vertical) and sills (horizontal) - granite

Question 12

12. Isostatic rebound

Answer 12

Glacier has melted from Quarternary Age
Land is lifting
Inland dip