Which of the following terms consistently describe an oceanic-continental subduction zone?
A) Shallow to deep earthquakes, volcanism, older oceanic crust, ocean trenches
B) Shallow to deep earthquakes, no volcanism, younger oceanic crust, ocean trenches
C) Only shallow earthquakes, volcanism, younger oceanic crust, ocean trenches
D) Only shallow earthquakes, volcanism, older oceanic crust, ocean trenches
E) No earthquakes, volcanism, older oceanic crust, thick sediment

Question

Quizplus · Accepted Answer

In an oceanic-continental subduction zone, the denser oceanic plate is subducted beneath the less dense continental plate. This results in shallow to deep earthquakes, as the plate boundary is being pushed down and deformed. Volcanism is also typically present, as the subducting plate melts and rises due to the high pressure and temperature. The oceanic crust involved in the subduction is usually older, as it has had more time to cool and become denser. The deformation and subduction of the oceanic plate often results in the formation of ocean trenches.

Which of the Following Terms Consistently Describe an Oceanic-Continental Subduction