What are the main parts of the World Ocean floor.

The bottom of the World Ocean has a rather varied relief with huge differences in depth. In terms of area, more than half of the underwater territory falls on the so-called abyssal depth, a relatively flat area of ​​the bottom, covered with sedimentary deposits. There are also underwater faults, troughs and ridges, where new crust is formed, and there are active volcanoes. There is a shallow shelf close to the coastline. After it, the continental slope begins, which looks like an almost vertical wall.

Sections of the bottom are usually divided into several groups depending on their depth and slope:

Underwater Ridges – Create an unbroken chain that runs across all four oceans. In these zones, a new tectonic crust continues to form, they are very active, there are many active volcanoes and earthquakes are frequent;
Abyssal depth (it is also absolute) – the main form of the ocean floor, consists of a thick sedimentary layer;
Continental slope – sometimes in the form of a wall. This site is the underwater part of the continent;
Oceanic troughs are the deepest parts of the ocean and are formed at the point where oceanic tectonic plates diverge. In one of these places in the Pacific Ocean there is the Mariana Trench, a record-breaking deep;
The shelf zone is a relatively shallow coastal part of the ocean. This zone is quite rich in various living creatures, corals often grow there, because due to the shallow depth (maximum – 200 m) the water warms up better here;
The continental foot is a transition zone between the oceanic and continental crust.