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Rocks (Advantages and disadvantages of quarries (Jobs for local people…
Rocks
Advantages and disadvantages of quarries
Air pollution- transport
Dust from mine in air
Water contamination
Noise pollution-explosions
Bad for wildlife
Falling house prices
Jobs for local people
Lorry drivers get more work
Hope quarry employs 182 people
Workers spend money in local towns
Limestone features
Joints and bedding planes
Grykes
Resurgent streams
Swallow hole
Stalagmite and stalactite
Pillars
Impermiable rock
Uses of chalk and clay landscapes
Underground store of water
London aquifer supplies 200000 homes
Quarries create jobs
Attractive landscape
Tourists
Local economy
Quarried and sold to make bricks
Pottery
Top of escarpment used for sheep farming
Uses of a limestone landscape
Casleton- The Peak district
Hope quarry employs 182 people
Quarry workers buy lunch in local cafes
Grass is better for animals
Good for farming
Nice scenery- tourism
Tourists stay in local hotels
Improves local economy
Carbonation
Rain water and CO2
Dissolves calcium carbonate
Acid rain (carbonic)
A type of weathering process
Limestone pavements
Carbonation occurs
Acid rain sinks into joints and dissolves the calcium carbonate
Joints are widened forming grykes
Large blocks of limestone between grykes are called clints
Escarpments and vales
Chalk and clay
Compression- sedimentary rock
Alternate layers
Tectonic activity causes layers to uplift
Dipped at an angle
Weathering and erosion
Erode at different speeds
Chalk hard erodes slowly=escarpment
Clay soft erodes quickly=vale
Scarp slope on escarpment
Joints + bedding planes=weaknesses
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