Chemical Weathering Flashcards
1
Q
What is chemical weathering
A
Chemical weathering is when rocks are dissolved because of chemical reaction
2
Q
Examples of chemical weathering
A
Carbonation
3
Q
What is carbonation
A
The atmosphere is full of a gas called carbon Dioxide
2. Rainwater mixes with Co2 to form weak carbonic acid (H2CO3)
3. The H2CO3 has a huge affect on Limestone rock! Because it contains 80% calcium carbonate
4.H2CO3 reacts with calcium carbonate in limestone and dissolves it
4
Q
Is limestone permeable
A
Yes
5
Q
Where does carbonation occur
A
Carbonation occurs in areas where bare limestone rock is exposed to weather these are known as KARST LANSCAPES!!!!!!!!!!!
6
Q
Example of karst landscape in Ireland
A
Burden county Clare
