The deepest sea is undoubtedly the Coral Sea located in the southwestern Pacific Ocean. The average depth reaches 2,394 meters, with water depths of 3,000-4,000 meters in most places, and the deepest point is even 9,175 meters deep. The Coral Sea is located on the edge of the Pacific Ocean and is therefore a marginal sea. Many people know this geographical location through Jay Chou's song "Coral Sea" of the same name. This is not accidental.
The Coral Sea is called this name because of the large number of coral reefs, among which the Great Barrier Reef in this sea area is the most famous. And the Coral Sea is not only the deepest sea, but also the largest sea in the world, with a total area of ??4.791 million square kilometers, equivalent to half the size of China.
The submarine topography of the Coral Sea generally slopes from west to east. The seabed north of 20 degrees south latitude is mainly the submarine plateau of the Coral Sea. To the north of the plateau is the Coral Sea basin. Between the submarine plateau and the ocean basin, there are sea rises and troughs interspersed between them. Atolls, reefs and islands are exposed above the sea surface.
The depths of the seabed are not as beautiful as described in novels or animations, because there is no sunlight deep in the seabed, the water pressure is extremely high, the temperature is only a few degrees, and there is very little oxygen. It can be said that this One of the harshest environments on earth. In the almost lifeless depths of the ocean floor, there is only mud made from dead animals and plants. If it happens to be in the middle of two plates, earthquakes, tsunamis, etc. will often occur, and black smokestacks will form on the sea floor. The cause of the black smokestacks is that cracks caused by earthquakes cause magma to surge up and heat the seawater. The temperature of the seawater can reach 400 degrees under high pressure, and black sulfide spurts out, but the water temperature near the black smokestacks is only a few degrees.