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oceanic crust
(redirected from Oceanic plate)

    Also found in: Dictionary/thesaurus, Wikipedia 0.01 sec.
oceanic crust [‚ō·shē′an·ik ′krəst]
(geology)
A thick mass of igneous rock which lies under the ocean floor.
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While being subducted, sediments are scraped off the oceanic plate and added to the overriding continental plate.
Ocean-drilling expedition cites new evidence related to origin and ... by Asian News International
Earthquakes, stratovolcanoes, and uplifting are products of a process called subduction, in which the oceanic plate slides under, or subducts, the continental plate.
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When a tectonic plate made of ocean crust and one formed of relatively light continental rocks collide, the continental plate typically overrides the oceanic plate, forcing it back down into Earth's mantle.
Finding fault: trace of old subduction zone found in Italy by Perkins, Sid / Science News
 
 
 
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