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Volcanic arcs and trenches are commonly produced when the oceanic plate bends downwards. For more details, see the following:
When an oceanic plate and a continental plate meet at a convergent boundary, the denser oceanic plate is forced down below the less dense continental plate. This is known as subduction.
This forms a deep trench on the ocean bed and the subducted crust containing high proportions of volatiles (i.e. water) melts as it sinks. This magma forces it's way to the surface forming volcanoes.
Please see the related link for more details.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoI don''t really know about this but what I think happens is that there is an earthquake. There CAN be earthquakes in the middle of the ocean. They turn into tsunamis. Another thing that can happen is that a new island is formed. Hawai was formed when two ocean plates collided.
Hope this helps you!
Wiki User
∙ 12y agoA trench and a island arc
Wiki User
∙ 12y agoA trench will occur.
Wiki User
∙ 10y agoSubduction zone
Wiki User
∙ 12y agoa trench
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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
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 type of rock makes up the continental and oceanic crust?
basalt forms in oceanic crust granite forms in continental
What feature forms at diverging oceanic plates?
Ridges of buoyant oceanic crust form at diverging oceanic plate boundaries.
What forms where two oceanic plates collide?
subduction zone
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
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
New oceanic lithosphere forms as a result of?
New oceanic lithosphere forms as a result of continental drift.
Earth does not get bigger as new oceanic crust forms?
Just as new oceanic crust forms at mid-ocean ridges, old oceanic crust is destroyed at subduction zones.
When oceanic lithosphere subducts beneath oceanic lithosphere?
An island arc forms.
What type of rock makes up the continental and oceanic crust?
basalt forms in oceanic crust granite forms in continental
What forms when one plate is forced under another plate?
mid ocean ridge
What feature forms at diverging oceanic plates?
Ridges of buoyant oceanic crust form at diverging oceanic plate boundaries.
What forms when a continental plate collides with an oceanic plate?
it forms a trench
Steps in arc continent mountain formation?
Subduction occurs when an oceanic plate is forced below a continental plate. The subducted plate melts, creating magma that rises and forms volcanic arcs. Continued subduction and uplift lead to the formation of large mountain ranges on the overriding continental plate.
How does a trench forms?
They form when the oceanic crust goes under the Continental crust. The oceanic crust then forms the trenches through a process called subduction.
What happens when two oceanic plates meet?
the colder,oceanic plate sinks?!?!
