Destructive margins are where two plates are moving towards each other e.g the east coast of japan
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What are conservative margins
constructive margins are where two plates are moving sideways past each other, or in the same direction but at different speeds e.g along the west coast of the USA. crust isn't created or destroyed
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What are constructive margins
Constructive margins are where two plates are moving away from each other , e.g at the mid Atlantic ridge. Magma (Molten rock) rises from the mantle to fill the gap and cools creating new crust
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Describe continental crust
It can not be renewed or destroyed, it also can not sink it is thicker than the oceanic plate
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Describe Oceanic plates
it is heavier and denser it also younger it can melt and also be destroyed and remade it can sink and it is also thinner
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What are conservative margins
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constructive margins are where two plates are moving sideways past each other, or in the same direction but at different speeds e.g along the west coast of the USA. crust isn't created or destroyed
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