The tiny Juan de Fuca plate is largely responsible for the volcanoes ... where plates move into one another; divergent, where plates move apart; and transform, where plates move sideways in ...

Whatever drives the movement, plate tectonic activity takes place at four types of boundaries: divergent boundaries, where new crust is formed; convergent boundaries, where crust is consumed ...

Download a chart to use in class and an activity for practicing with these concepts: Tectonic Basins chart and activity Here is a diagram to help you understand how the tectonic basins are related to ...

Four types of plate tectonic activity are demonstrated in this feature. Keep an eye on the map to see where in the world the activity takes place. Also known as spreading boundary, a divergent ...