Limestone
- Created by: ukgamer321
- Created on: 06-05-14 19:08
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- Limestone
- formed under water
- sea creatures die and decay and sea bed
- over time calcium carbonate becomes compressed to become limestone
- overtime sea level changes and tectonic processes bring the limestone to the surface
- Chemical solution
- rainwater absorbs C02 and becomes acidic. This dissolves limestone
- Limestone Pavements
- water gets into cracks and dissolves away the rock.
- flat surface is called clints
- cracks called grykes
- Cavern
- acidic rainwater dissolves away the rock, until a hole becomes larger and larger
- until water can flow through, eroding it
- Swallow holes
- depression in the ground, usually in limestone that is connected and formed by rain.
- can also be formed by the collapse of a cavern roof
- StalaCtites
- hangs from the ceiling
- form from the deposition of limestone, they then solidfy
- grow downwards
- StalaGmites
- rises from the ground
- formed from rain water dripping from ceiling
- Pillar
- when stalagmites and stalactites meet
- Gorges
- when rooves of caverns collapse.
- acidic rainwater erodes the inside of caverns until cannot support roof
- Land use- tourism quarrying farming militry
- Quarrying
- Benefits
- jobs
- transport links
- money into economy
- Problems
- dust and noise pollution
- scars landscape
- heavy traffic
- destroys animal habitats
- Benefits
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