Restless Earth Flashcards
1
Q
Describe a constructive pate boundary
A
2 plates separate and allow magma to rise, which creates a shield volcano and new land eg Iceland
2
Q
Describe a destructive plate boundary
A
The denser oceanic plate SUBDUCTS under the less dense continental plate
This causes friction which leads to earthquakes.
As the oceanic plate becomes molten, it creates pressure in the mantle, which means a composite volcano forms
Ocean trenches also form
