Rocks 2 Flashcards

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1
Q

Formation of a limestone pavement

A

Acid rain (chemical weathering) dissolves the limestone
Goes down clints and grykes as it is impermeable.
CO2 mixes with rainwater (making it a weak carbonic acid)
Reacts with the alkaline
Malham cove, Yorkshire Dales

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2
Q

Cuesta uses

A
Clay used for building
Tourism (South Downs Way) a walk 
Lush grass used for cow grazing (good milk)
Poor grass thin soil for sheep 
Race horse training (full of calcium)
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3
Q

Pros and cons of the London aquifer

A
Pros- provides water to the whole of London 
Cheap, don't have to filter it
Naturally clean (purified) because of the chalk high in calcium
Cons-it will run out (limited)
When it gets taken out of the ground, the chalk contracts (sinks) taking London with it
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