Restless Earth - Constructive plate boundary Flashcards Preview

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Flashcards in Restless Earth - Constructive plate boundary Deck (5)
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1

What happens at a constructive plate boundary - STEP 1?

The convection currents in the mantle cause the plates to move apart.

2

What happens at a destructive plate boundary - STEP 2?

This movement can trigger earthquakes.

3

What happens at a destructive plate boundary - STEP 3?

Magma rises up to fill the gap created by the plates moving apart.

4

What happens at a destructive plate boundary - STEP 4?

After several eruptions the lava builds up to form a shield volcano.

5

Describe the diagram...

2 arrows moving away from each other.
A wide gap down the middle.
A volcano across both sides.