Plate Boundaries
Diverging
Ocean Ridge
A mid-ocean ridge is an underwater mountain range. Its formed by plate tectonics. Uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.
Diverging
Ocean Ridge
A mid-ocean ridge is an underwater mountain range. Its formed by plate tectonics. Uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.
Converging
Continental to Continental
Continental to continental convergent plates have a low density and are thick. They have produced the Himalayas, this was when the Indian-Australian plate collied with the Eurasian plate. What happens is the two plates converge and buckle, they fold over each other to form mountains ranges of great height.
FOR ANIMATION GO TO LINK
http://www.bing.com/videos/searchq=continental+to+continental+divergent+boundary&FORM=HDRSC3#view=detail&mid=8FBC50A13CC9CDA71CE38FBC50A13CC9CDA71CE3
Continental to Continental
Continental to continental convergent plates have a low density and are thick. They have produced the Himalayas, this was when the Indian-Australian plate collied with the Eurasian plate. What happens is the two plates converge and buckle, they fold over each other to form mountains ranges of great height.
FOR ANIMATION GO TO LINK
http://www.bing.com/videos/searchq=continental+to+continental+divergent+boundary&FORM=HDRSC3#view=detail&mid=8FBC50A13CC9CDA71CE38FBC50A13CC9CDA71CE3
Oceanic to Oceanic
When two oceanic plates converge one of the plates subducts into a trench. The subducted plate sinks down into the mantle where it melts. Molten rock from the melting plate rise toward the surface and starts to form a volcanic island behind the ocean trench. Along the coast of Alaska in North America this has happened and it formed the Aleutian Trench and the Aleutian Islands.
FOR ANIMATION GO TO:
http://www.bing.com/videos/searchq=oceanic+to+oceanic+convergent+boundary&FORM=HDRSC3#view=detail&mid=3F5BA165D46EA787C98E3F5BA165D46EA787C98E
When two oceanic plates converge one of the plates subducts into a trench. The subducted plate sinks down into the mantle where it melts. Molten rock from the melting plate rise toward the surface and starts to form a volcanic island behind the ocean trench. Along the coast of Alaska in North America this has happened and it formed the Aleutian Trench and the Aleutian Islands.
FOR ANIMATION GO TO:
http://www.bing.com/videos/searchq=oceanic+to+oceanic+convergent+boundary&FORM=HDRSC3#view=detail&mid=3F5BA165D46EA787C98E3F5BA165D46EA787C98E
Oceanic to Continental
A thin, dense oceanic plate collides with a light, thick continental plate and the oceanic plate is pushed under the continental plate; this is is called subduction. This is happening with the Nazca Plate which is moving eastwards, towards the South American Plate.
FOR ANIMATION GO TO:
http://www.bing.com/videos/searchq=oceanic+to+continental+convergent+boundary&FORM=HDRSC3#view=detail&mid=3E255B00D701666303523E255B00D70166630352
A thin, dense oceanic plate collides with a light, thick continental plate and the oceanic plate is pushed under the continental plate; this is is called subduction. This is happening with the Nazca Plate which is moving eastwards, towards the South American Plate.
FOR ANIMATION GO TO:
http://www.bing.com/videos/searchq=oceanic+to+continental+convergent+boundary&FORM=HDRSC3#view=detail&mid=3E255B00D701666303523E255B00D70166630352
Transform
Large Faults
A transform fault is formed between two different plates, each moving away from the spreading centre of a divergent plate boundary. Some transform faults cut continental lithosphere. The San Andreas Fault Zone of western North America, connects a divergent boundary in the Gulf of California with the Cascadia subduction zone.
FOR ANIMATION GO TO:
http://www.bing.com/videos/searchq=transform+fault&qs=n&form=QBVR&pq=transform+fault&sc=8-15&sp=-1&sk=#view=detail&mid=45CE6C583DCCF40B71F145CE6C583DCCF40B71F1
Large Faults
A transform fault is formed between two different plates, each moving away from the spreading centre of a divergent plate boundary. Some transform faults cut continental lithosphere. The San Andreas Fault Zone of western North America, connects a divergent boundary in the Gulf of California with the Cascadia subduction zone.
FOR ANIMATION GO TO:
http://www.bing.com/videos/searchq=transform+fault&qs=n&form=QBVR&pq=transform+fault&sc=8-15&sp=-1&sk=#view=detail&mid=45CE6C583DCCF40B71F145CE6C583DCCF40B71F1