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geography notes - Plate tectonics
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a very good summary about plate tectonics that is quite comprehensive. This was created during class and contains everything you need to know!
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samenvatting Aardrijkskunde hoofdstuk 1; Active Earth
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Comparing plate tectonicsYou have 2 different types of plates: continental and oceanic plates. The
process of these plates moving is called plate tectonics which is caused by
convection currents. Convection currents happen inside the Earth. First the
rocks inside the mantle are molten by the heat of the Earth’s core. This
causes the hot molten rock called magma to rise to the Earth’s crust where
it cools down resulting in the rocks to sink again. The plates move on this
stream of magma. You have divergent, convergent and transform plate
movement. Divergent plate movement is when two plates move away
from each other, an example of this is the African plate and the
Arabian plate. Convergent plate movement is when two plates move to
each other, an example of this is the Indian plate and the Eurosian
plate. Transform plate movement is when two plates move past each
other, an example of this is the Pacific plate and the North-American
plate.
The plate movements also bring consequences with them. Like the transform plate movements,
because they have jagged edges and when they move past each other, these jagged edges cause much
friction. The plates build up pressure which is suddenly released resulting in a (strong) earthquake.
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