Plate Margins Flashcards

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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.
What are the characteristics of the mantle?
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The thickest section of the Earth. Approximately 2900km.

It is made up of semi-molten rock called magma.

What are the characteristics of the mantle?
Why are volcanoes not found along conservative plate margins?
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This is because a conservative plate margin, sometimes known as a transform fault, is where two plates move past each other without direct collision.

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Why are volcanoes not found along conservative plate margins?
Identify the two types of tectonic crust.
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Oceanic and continental crust

Identify the two types of tectonic crust.
Draw a diagram to show the main features of a constructive plate margin.
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An image of a constructive plate margin

A constructive plate margin

Draw a diagram to show the main features of a constructive plate margin.




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