Subduction.
Subduction
Ocean trenches form at areas of subduction.
The Marianas trench .
spreading
a plateau
An ocean trench does not become a volcanic island, however volcanic islands often form near ocean trenches.
trench- valleys that form on the ocean floor where two plates come together, the deepest place in the ocean
spreading
The Marianas trench .
The Mariana Trench is the deepest point in any ocean and is located in the Pacific Ocean.
subduction of an oceanic plate under a continental plate.
The Mariana Trench is the deepest point in any ocean and is located in the Pacific Ocean.
well, its the ocean trench. a trench is like a giant ditch and it basically sinks in. while the ocean volcanoes converge and push up.