Plate Boundaries Flashcards
What is the direction of movement in a divergent plate boundary?
Moving away from each other
What crusts are involved in a divergent plate boundary?
Oceanic
hat are the major landforms that result in divergent plate boundaries?
Ocean ridges and islands
How do volcanoes form in divergent plate boundaries?
When magma escapes and gets pushed towards the mantle
In what direction do convergent plate boundaries move ?
They move towards each other, but one subducts (moves underneath) the other
What’s a hotspot?
A place in the centre of a plate where magma rises, causing the lithosphere to melt, and pushing magma into the crust, forming volcanoes
What crusts are involved in convergent plate boundaries?
Oceanic and continental
What is the major landform from the movement of convergent plate boundaries?
Mountains
Name two plates on a divergent plate boundary
African and South American plate
Are the earthquakes in convergent plate boundaries larger or smaller than divergent plate boundaries?
Larger
In what direction do collision plate boundaries move?
Towards each other- they collide
What types of crust are involved in collision plate boundaries?
Continental
What is the major landform from collision plate boundaries and why?
Fold mountains- plates are forced upwards when they collide
What is the reason for earthquakes in collision plate boundaries?
Build up of friction and pressure
What direction do conservative plate boundaries move?
They slide past each other
