In a subduction zone, when one oceanic plate sinks back into the Asthenosphere under a continental plate after colliding with another plate , a deep depression forms known as a(n):

Question

Quizplus · Accepted Answer

Oceanic trenches are deep depressions formed in subduction zones where one oceanic plate is forced under a continental plate or another oceanic plate, leading to its sinking back into the mantle (Asthenosphere).

In a Subduction Zone, When One Oceanic Plate Sinks Back