Boundaries where the Earth's tectonic plates meet, where crust can be made, destroyed, and deformed as adjacent plates move.
Boundaries where the Earth's tectonic plates meet, where the crust can be made, destroyed and deformed as adjacent plates move. There are four main types: constructive boundaries, where plates move apart and new rock is formed; destructive boundaries, where one plate is pushed under another; collision boundaries where plates push together and crust crumples upwards; and conservative boundaries where plates slide past each other.
There are four main types: constructive boundaries, where plates move apart and new rock is formed; destructive boundaries, where one plate is pushed under another; collision boundaries where plates push together and crust crumples upwards; and conservative boundaries where plates slide past each other.