Coastal Erosion

katelyncooke15
Mind Map by katelyncooke15, updated more than 1 year ago
katelyncooke15
Created by katelyncooke15 about 5 years ago
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Mind Map on Coastal Erosion, created by katelyncooke15 on 01/19/2015.

Resource summary

Coastal Erosion
1 FEATURES
1.1 CAVE
1.2 ARCH
1.3 SEA STACK
1.4 STUMP
2 WAVE ACTION
2.1 HYDRAULIC ACTION
2.1.1 Air may become trapped in joints and cracks on a cliff face. When a wave breaks, the trapped air is compressed which weakens the cliff and causes erosion.
2.2 ATTRITION
2.2.1 Waves smash rocks and pebbles on the shore into each other, and they break and become smoother.
2.3 SOLUTION
2.3.1 Acids contained in sea water will dissolve some types of rock such as chalk or limestone
2.4 CORROSION
2.4.1 Carbon dioxide in the atmosphere is dissolved into water turning it into a weak carbonic acid. Several rocks (e.g., Limestone) are vulnerable to this acidic water and will dissolve into it. The rate of dissolution is affected by the concentration of carbonates & other minerals in the water. As it increases, dissolution becomes slower.
2.5 ABRASION
2.5.1 Bits of rock and sand in waves grind down cliff surfaces like sandpaper.
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