Destructive Plate Boundaries Flashcards
What happens when two continental plates collide?
Mountain ranges form as neither can subduct.
What can occur when two continental plates collide?
Small scale earthquakes
Where can you find a fold mountain range?
The Himalayas in Nepal Bhutan India China and Pakistan
What happens when two oceanic plates collide?
A ocean trench is formed.
Which plate subduct in oceanic plates collision?
The faster plate/ The more dense plate
What else may form in a oceanic plates collision?
A shield volcano as sometime basalt lava is forced through the crust that din’t subduct.
What happens when a oceanic and a continental plate collide?
It forms a ocean trench and a composite volcano/ fold mountains.
What type of lava comes out a composite volcano?
Andesite lava.
What is the Benioff zone?
Where rocks melt.
How deep is the Benioff zone?
100km-700km under the crust.
Give an example of a trench?
The Marianas trench
What can occur when a oceanic and a continental plate collide?
Major earthquakes
