Definition For Trench Ocean Floor

Ocean trench synonyms ocean trench pronunciation ocean trench translation english dictionary definition of ocean trench.

Definition for trench ocean floor.

Trench a long steep sided depression in the ocean floor. A long narrow ditch embanked with its own soil and used for concealment and protection in warfare. 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. Natural depression depression a sunken or depressed geological formation.

To place in a trench. How to use trench in a sentence. Oceanic trenches typically extend 3 to 4 km 1 9 to 2 5 mi below the level of the surrounding oceanic floor. To dig or make a trench or trenches in land or an area for example.

Look it up now. These oceanographic features are the deepest parts of the ocean floor. 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 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. A deep furrow or ditch. A deep furrow or ditch. Trenched trench ing trench es v tr.

Trench definition is a long cut in the ground. The ryukyu trench stretching out from southern japan is formed as the oceanic crust of the philippine plate subducts. Oceanic trenches are topographic depressions of the sea floor relatively narrow in width but very long. Some of the most familiar ocean trenches are the result of this type of convergent plate boundary the peru chile trench off the west coast of south america is formed by the oceanic crust of the nazca plate subducting beneath the continental crust of the south american plate.