Oceanic crust
Lithosphere
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Asthenosphere
Trench
K
Image modified from USGS
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Volcanic
arc
Continental crust
The diagram above shows an oceanic-continental subduction zone. Which of the following accurately describes an effect of subduction in
this setting?
Lithosphere
OA. The continental plate plunges below the oceanic plate and is recycled into the Earth's interior.
OB. A trench forms in the asthenosphere below the continental plate.
OC. A volcanic arc forms on the subducting oceanic plate.
OD. Magma rises upward through the overriding continental plate.
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