sub aerial process Flashcards
1
Q
what is freeze thaw weathering
A
- water trapped in joints in rocks
- temperature drops and water freezes, adding pressure
- ice eventually melts
- repeated freezing and melting weakens rock
- rock fragments break off
2
Q
what is biological weathering
A
marine animals had padlocks allowing them to drill into rocks
3
Q
what is oxidation
A
oxygen dissolves in water reacts with rock minerals
4
Q
what is hydration
A
pyshical addition of water to minerals in the rock
5
Q
what is hydrolysis
A
mildly acidic water reacts with minerals in the rock
6
Q
what is carbonation
A
co2 dissolved in water makes a weak carbonic acid
