Plate Margins Flashcards

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Identify the three types of plate margin.
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Constructive, conservative and destructive.
Identify the three types of plate margin.
Draw a diagram to show the main features of a destructive plate margin
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A cross section of a destructive plate margin

A cross section of a destructive plate margin

Draw a diagram to show the main features of a destructive plate margin
Explain ridge push and slab pull as a cause of plate movement.
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Ridge push –magma rises as the plates move apart. The magma cools to form new plate material. As it cools It becomes denser and slides down away from the ridge. This causes other plates to move away from each other.
Slab pull – The denser plate sinks back into the mantle under the influence of gravity. It pulls the rest of the plate along behind it.
Explain ridge push and slab pull as a cause of plate movement.
Give 2 characteristics of oceanic crust.
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  • More dense than continental crust
  • Heavier than continental crust
  • Younger than continental crust
  • Thinner than continental crust.
Give 2 characteristics of oceanic crust.
What is the lithosphere?
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The rigid layer formed by the crust and upper mantle.

What is the lithosphere?




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