Deep sea trenches and their approaches are striking features on the ocean floor.
What happens to the ocean floor in deep ocean trenches.
Ocean trenches are deep cracks in the ocean floor that can extend down into very long valleys.
In general the cross sections of deep sea trenches are v shaped with steeper landward sides.
Narrow flat abyssal.
The deepest ocean depth to be sounded is in the challenger deep of the mariana trench.
On the inner slope continental side the trench walls are much more steep.
The deepest parts of the ocean are found in trenches at more than 35 000 feet nearly 11 000 meters challenger deep is a part of the mariana trench where the pacific plate is subducting beneath the philippine plate.
An oceanic trench is a long and narrow depression in the ocean floor.
The deepest ocean trench is called the challenger deep part of the mariana trench in the pacific.
On a trench s outer slope the oceanic side the slope is gentle as the plate gradually bends into the trench.
Oceanic trenches typically extend 3 to 4 km 1 9 to 2 5 mi below the level of the surrounding oceanic floor.
The types of rocks found in these ocean trenches are also asymmetrical.