It is the Abyssal plain.
what happens is the ocean floor does not just keep spreading.instead, it sinks beneath deep underwater canyons called deep- ocean trenches
In the ocean floor.
probably..
Deep Trench in the ocean floor. It can sometimes be mistaken for a mid-ocean ridge.
the continental Margin, Ocean Basin Floor and Mid-Ocean ridge :D
an abyss
deep ocean trench
deep-ocean trench
deep-ocean trench
At deep-ocean trenches, subduction allows part of the ocean floor to sink back into the mantle. The ocean floor does not just keep spreading. Instead, it sinks beneath deep underwater canyons called deep-ocean trenches. Where there are trenches, subduction takes place.
At deep-ocean trenches, subduction allows part of the ocean floor to sink back into the mantle. The ocean floor does not just keep spreading. Instead, it sinks beneath deep underwater canyons called deep-ocean trenches. Where there are trenches, subduction takes place.
Challenger Deep.