Granite

Question 1

Explain why there are vertical and horizontal joints?

Answer 1

Vertical: formed during the cooling of the rock
Horizontal: Formed by pressure release when overlying rock was removed

Question 2

What causes the: enlarged joints, broken rocks at the bottom and rounded edges

Answer 2

1. Enlarged joints caused by freeze thaw weathering
2. Broken off rocks at the bottom, a result of freeze thaw weathering
3. Rounded edges caused by chemical weathering

Question 3

Name the Characteristics of Granite

Answer 3

Tough and resistant

Three main minerals: black mica, grey -colored quarts and pink feldspar

Question 4

Features of a granite landscape

Answer 4

• Moorland
• Impermeable
• Boggy
• Stunted trees
• Low vegetation
• Tors

Question 5

Recall a Tor and a Batholith

Answer 5

Tor: an isolated outcrop of rock on a hill top
Batholith: a large, randomly shaped mass of igneous rock that will only reach the surface when overlying rocks are removed

Question 6

Human uses for Dartmoor

Answer 6

• reservoirs
• arable farming
• quarrying if stone
• tin
• china clay
• tourism

Question 7

Describe the uses of extraction, water supply, farming and scenery (Granite)

Answer 7

1. Building stone, china clay, kitchen surfaces
2. Impermeable = reservoirs.
3. extensive sheep farming on poor pastures .
4. Attractive moorland scenery, water sports, walking etc

Question 8

Name 5 characteristics of a Granite Tor

Answer 8

• vertical joints
• horizontal joints
• large joints
• rounded edges
• broken rocks at the foot of the tor