All this story started by being on a windy mountain road up in the north of Laos and Thailand with land slides and then we started talking about Earth then started talking about plate margins. There are lots of things happening on Earth that we don't always notice. Like old crust being demolished or new mountains that are being formed. These two things happen by something called a margin. There are four different margins called:
- Destructive margin (subduction zone)
- Constructive margin
- Conservative margin and
- Collision zone
Now I'm going to tell you how they work. So let's start with destructive margin. A destructive margin sort of works with the constructive margin. The destructive margin is when one plate slides under another plate destroying the other plate. For example, Japan was formed by the Pacfic plate going under the Asian plate making a volcano erupt. Next let's do constructive margin. A constructive margin is a plate moving away from another plate to let magma come out and cool down to form new rock and a new country or island. Let's see what now, conservative margin is when one plate slides past another causing a huge earthquake. The last one is the collision zone where a country bangs into another country or continent. For example India crashed into Asia and formed the Himalayas.