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Plate Tectonics

• Convection Currents
• Constructive - Divergent
• Destructive - Convergent
• Conservative - Tranform

Convection Currents

• Convection currents are the driving force behind all plate tectonics.

Destructive Plate Boundries

• A destructive plate boundary is sometimes called a convergent or tensional plate margin. This occurs when oceanic and continental plates move together. The oceanic plate is subducted under the continental plate as the oceanic plate is denser. The huge friction between the two plates causes melting of the oceanic plate and may trigger earthquakes.
• Along the surface above where the plates would be being melted a composite volcano begins to form.
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