Plate margins

Question 1

Oceanic/Continental Destructive

Answer 1

Oceanic crust denser so subducted. Deep sea trench formed at the subduction zone. Crust melts in mantle and floats back to the surface and erupts

Question 2

Oceanic/Oceanic Destructive

Answer 2

Deep sea trench formed triggering earthquakes and eruptions. Melted materials rise to create a chain of volcanic islands (Island arcs)

Question 3

Continental/Continental Destructive

Answer 3

Rocks crumble together to form fold mountains (Himalayas)- or forms earthquake as neither can subduct eachother

Question 4

Oceanic/Oceanic Constructive

Answer 4

Plates move apart and magma rises to fill space and creates mid ocean ridges.

Question 5

Continental/Continental Constructive

Answer 5

Plates moves apart and magma rises and causes rift valleys. Volcanoes form when magma melts due to pressure then rises. Earthquakes occur due to plates moving non-uniformally, the plate cracks causing a fault line

Question 6

Conservative

Answer 6

Two plates move past each other get locked together and pressure builds up. They jerk past each other releasing energy as an Earthquake