Dorset geology #2 Flashcards
1
Q
what rocks, common in Dorset, is prone to expansion and contraction?
A
Clay and Shale
2
Q
Where and what type of rock goes through frost shattering?
A
Chalk in Lulworth Cove
3
Q
why is chalk vulnerable to frost shattering?
A
It is very porous
4
Q
What does expansion and contraction/wetting and drying result in?
A
It creates cracks which encourages further erosion
5
Q
What types of rock does solution usually occur at?
A
limestone and chalk
6
Q
What type of rock is susceptible to biological action?
A
chalk
