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Tectonic Plates

Mrs. Frasers 6th Grade Class

Matthew McLaren

on 22 February 2013

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Transcript of Tectonic Plates

Tectonic Plates By Matthew McLaren & Bayyouk Mountains form when two plates collide and push the Earth's crust. Mountains grow when this happens again. Some of the worlds tallest mountains are still growing today because of this. Transform boundaries or faults are when two of the Earth's plates rub against each other. This can create earthquakes. These can also create subduction zones. Subduction zones are where a plate goes under another. This can break the surface of the Earth. Earthquakes Earthquakes happen when two plates rub against each other (Convergent boundary), which creates friction (rubbing) which results in an earthquake. Some earthquakes are more violent than others because of the amount of friction there is. Mid-Ocean Ridges Mid-Ocean ridges are made when two plates pull away from each other (divergent boundary) and magma fills the gap and dries in rifts. This is also known as sea-floor spreading. Convergent boundaries are when the Earth's crust collide with each other.This creates mountain formation and also volcano formation. If a continental plate collides with an oceanic plate then that creates a volcano. If two continental plates collide then that creates mountains. Volcanoes Volcanoes form when two plates (one oceanic and one continental) collide (convergent boundary) and push up. The surface breaks and the magma is forced up through the chambers. Some volcanoes are more violent than others because there is more magma in the chambers. Divergent Boundaries Mountains Transform Convergent Divergent boundaries are when the Earth's crust pulls away from each other. This makes mid-ocean ridges and creates seafloor spreading. When the crust spreads apart new crust material takes the old crust's place. Trenches Trenches are formed when one plate slides under another (subduction zone). Some trenches are deeper than others because of how far one plate slides under another.
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