Plate Margins Flashcards
1
Q
What are constructive plate margins?
A
Plates move away
2
Q
What happens at oceanic oceanic plate margins?
A
Plates separate, magma rises in the crack and cools to form land in the form of a shield volcano
3
Q
What are destructive plate margins?
A
Plates move together
4
Q
What happens at destructive plate boundaries?
A
Denser oceanic subducts, melts to form magma, pressure of magma builds up, escapes though weaknesses in the rock, rises though a composite volcano
