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What forms when one oceanic plate is forced benetheanother plate?
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What does the phrase 'the less buoyant plate is subducted' mean?
This means that the cooler, heavier oceanic plate at an oceanic to oceanic convergent boundary is forced into the mantle - under the hotter, lighter oceanic plate. OR At oceanic to continental boundary the heavier oceanic plate is forced into the mantle under the lighter continental plate.
What happens when two oceanic plates meet?
the colder,oceanic plate sinks?!?!
What geological features are caused by a subduction?
When a plate is subducted under another the geological feature depends what type of plate boundary it is. If it is two oceanic plates then the subduction causes Island Arcs to be formed as well as a trenches. When a oceanic plate is subducted under a continental plate then a trench is again formed just off the shore of the continental plate and fold mountains are created as the continental plate is forced upwards and the friction melts the oceanic plate into magma which then rises (as it is less dense than surrounding magma) and forms volcanos.
What is the land forms produced underwater caused by the movement of oceanic plate?
Mid oceanic ridges and deep sea trenches.
What forms when one plate is forced under another plate?
mid ocean ridge
What does the phrase 'the less buoyant plate is subducted' mean?
This means that the cooler, heavier oceanic plate at an oceanic to oceanic convergent boundary is forced into the mantle - under the hotter, lighter oceanic plate. OR At oceanic to continental boundary the heavier oceanic plate is forced into the mantle under the lighter continental plate.
When does a part of oceanic plate sink into the mantle?
Usually when it meets another tectonic plate at a convergent plate boundary. If the oceanic plate converges with a continental plate the denser oceanic plate will be forced under the continental plate. If it converges with another oceanic plate the older (and therefore cooler and denser) plate will be forced under the younger plate.
What forms when a continental plate collides with an oceanic plate?
it forms a trench
What forms when one oceanic plate is forced beneath another plate a rift valley an ocean basin an ocean ridge a subduction zone?
a subduction zone
Where is the oceanic crust sinking into mantle?
Usually when it meets another tectonic plate at a convergent plate boundary. If the oceanic plate converges with a continental plate the denser oceanic plate will be forced under the continental plate. If it converges with another oceanic plate the older (and therefore cooler and denser) plate will be forced under the younger plate.
What are the types of collisions that happen at convergent boundaries?
Subduction (where one plate is forced beneath another less dense plate - may occur at oceanic-oceanic and oceanic-continental boundaries), obduction (where oceanic plate is forced over a continental plate) and orogenesis where two continental plates collide and mountains are formed (e.g. the Himalayas).
What forms when one oceanic plate is forced beneath another plate a. an ocean basin b. an ocean ridge c. a subduction zone d. a rift valley?
C. subduction zone
What are two differences between the oceanic crust and the continental crust?
The oceanic crust consists of heavier rock, mostly Basalt, so that if a oceanic plate collides with a continental plate the oceanic plate will be forced down below the continental plate, forming island arcs.continental plates are thicker than oceanic plates.
What are the two differences between the continental crust and the oceanic crust?
The oceanic crust consists of heavier rock, mostly Basalt, so that if a oceanic plate collides with a continental plate the oceanic plate will be forced down below the continental plate, forming island arcs.continental plates are thicker than oceanic plates.
What happens when two oceanic plates meet?
the colder,oceanic plate sinks?!?!
What feature forms at diverging oceanic plates?
Ridges of buoyant oceanic crust form at diverging oceanic plate boundaries.
What forms when a continental and oceanic plate meet?
convergent boudary
