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Plate Boundaries

Types of Plate Boundaries

QuestionAnswer
New oceanic crust forms at what type of boundary? Divergent
At which plate boundary do plates move towards each other? Convergent
Continental crust is thicker than oceanic crust: true or false? True
Oceanic crust is more dense than continental crust: true or false? True
When two tectonic plates slide past one another, the boundary between them is called... Transform
Within convection currents, cold areas move ___ and hot areas move ___. Down, Up
The Mid-Atlantic Ridge occurs at what type of boundary? Divergent
The Andes Mountains occur at what type of boundary? Convergent (Oceanic-Continental)
What geologic feature occurs at transform boundary? San Andreas Fault
What geologic feature occurs at a convergent boundary (continental-continental) Himalayas
When an oceanic plate and a continental plate collide, what happens to the oceanic plate? It goes under the continental
The formation of the Hawaiian islands is associated with what type of boundary? Hotspots
Subduction zones are associated with what type of plate boundary? Convergent
The Aleutian Islands occur at what type of boundary? Convergent (Oceanic-Oceanic)
When an oceanic and continental plate converge, what happens? Oceanic subducts under the continental, melting the crust, forming volcanic mountains
When two oceanic plates converge, what happens? The older plate subducts under the younger one, melting the crust, forming volcanic islands
When two continental plates converge, what happens? Continental plates are too light to be subducted, therefore they buckle and get pushed up to form mountains
Where does the energy that causes the plates to move come from? The Earth's internal heat
Why does oceanic crust subduct under continental crust? Because it is more dense
Created by: Ristway
 

 



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