Definition For Trench Ocean Floor

Look it up now.

Definition for trench ocean floor. The deepest ocean depth to be sounded is in the challenger deep of the mariana trench. Bathymetry the shape of the ocean floor is largely a result of a process called plate tectonics the outer rocky layer of the earth includes about a dozen large sections called tectonic plates that are arranged like a spherical jig saw puzzle floating on top of the earth s hot flowing mantle. Plate tectonics and the ocean floor. Oceanic trenches are topographic depressions of the sea floor relatively narrow in width but very long.

Trench definition is a long cut in the ground. Oceanic trenches typically extend 3 to 4 km 1 9 to 2 5 mi below the level of the surrounding oceanic floor. A deep furrow or ditch. To dig or make a trench or trenches in land or an area for example.

These oceanographic features are the deepest parts of the ocean floor. Trench definition a long narrow excavation in the ground the earth from which is thrown up in front to serve as a shelter from enemy fire or attack. Trenched trench ing trench es v tr. How to use trench in a sentence.

A long narrow ditch embanked with its own soil and used for concealment and protection in warfare. Trench a long steep sided depression in the ocean floor. A long steep sided valley on the ocean floor. Oceanic trenches are a distinctive morphological feature of convergent plate boundaries along which lithospheric plates move towards each other at rates that vary from a few millimeters to over ten centimeters per year.

Natural depression depression a sunken or depressed geological formation. A deep furrow or ditch. The ryukyu trench stretching out from southern japan is formed as the oceanic crust of the philippine plate subducts. To place in a trench.