Plate Boundaries - different types Flashcards
Name four different types of plate boundaries.
Conservative.
Constructive.
Destructive: Subduction and Collision.
Explain how a destructive plate boundary is made.
Occurs when oceanic and continental plates move together. The oceanic plate is forced under the lighter continental plate.
Explain how a collision plate boundary is made.
Collision zones form when two continental plates collide. Neither plate is forced under the other, and so both are forced up and form fold mountains.
Explain how a constructive plate boundary is made.
A constructive plate boundary occurs when plates move apart. Volcanoes are formed as magma wells up to fill the gap, and eventually new crust is formed.
Explain how a conservative plate boundary is made.
A conservative plate boundary occurs where plates slide past each other in opposite directions, or in the same direction but at different speeds.