Location and Formation of: fold mountains, ocean trenches and shield volcanoes
- Created by: Jenny Jones
- Created on: 10-03-14 17:48
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- Fold Mountains, Ocean trenches and Sheild volcanoes
- Fold Mountains
- formed when plates collide at destructive plate boundaries
- when tectonic plates collide the sedimentary rocks that have built up between them are folded and forced upwards to form mountains
- you get fold mountains where a continental and oceanic plate collide (Andes,South America)
- you can also get fold mountains where two continental plates collide
- Fold mountain areas have lots of very high mountains, which are very rocky with steep slopes
- Ocean Trenches
- 1) Destructive plate margins are where two plates are moving towards each other
- 2) Where an oceanic plate meets a continental plate, the denser oceanic plate is forced down into the mantle and destroyed.
- This often creates volcanoes and ocean trenches ( very deep sections of the ocean floor where the oceanic plate goes down)
- Shield volcanoes
- Volcanoes are found at destructive and constructive plate margins
- at destructive plate margins, the oceanic plate goes under the continental plate because its denser
- At constructive plate margins, the magma rises up into the gap created by the plates moving apart, forming a volcano.
- made up of only lava
- lava is runny. flows quickly and spreads over a wide area, forming a low, flat volcano
- Volcanoes are found at destructive and constructive plate margins
- Fold Mountains
- when tectonic plates collide the sedimentary rocks that have built up between them are folded and forced upwards to form mountains
- you get fold mountains where a continental and oceanic plate collide (Andes,South America)
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