Friday, September 20, 2019
Geographical regions of the ocean
The ocean can be divided into three geographical regions - 1. Continental Shelves 2. Territory of continental slopes, and 3. Deep Sea Floor regions. Let's know about all these..
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| Geographical regions of the ocean |
Continental Shelves
Although the Continental Shelf belongs to the sea, it is more similar and closer to the site than the other two territories. Its depth is generally 600 ft. Does not exceed On mountain shores, it is found a few feet wide but near the plain plains, it is hundreds of miles wide. The shelves of the shores that surround the North Pole or arctic ocean are wider than all the shelves around the world. At some places, it is 750 miles wide. It is even deeper than it is as if the bottom is buried under the burden of ice cubes.
Except the deepest parts of the Continental Shelf, the rays of the sun enter the rest of the region. The water above it contains vegetation, such as plankton, which is the staple diet of fish. On its water, innumerable fish float in the form of herds of animals. The world famous dogger bank, which was once a wilderness of the site and the habitat of prehistoric animals, is today an area of sandbank and is full of fish. Almost all the fishing areas of the world are located on the continental shelf. Its area will be about 10 million square miles.
Construction of Continental Shelves
Continental Shift is constructed in two ways -
- By the decay of ocean waves, and
- By the deposition of rivers and ocean waves.
In many parts of the world, glaciers have also created similar funds through their decaying and deposition functions. Due to the rise and fall of the ocean floor, such states have been formed in the past. As the petroleum reserves of the continental part left by the ancient seas become empty, the geologists in search of them engage in drilling work in the hidden land near the continental shelves. And they also get success.
Continental Slope
On the Continental Slope, we get to know the depth of the ocean. This part is after the continental shelves, whose depth varies from 600 ft to 12,000 ft. The mystery and unfavorable quality of the unfathomable sea begins to be experienced from this part, where increasing pressure and darkness leaves the entire vegetation life. The world of this garden is the world of animals where one creature attacks another and devours it.
The continental slope is the remotest boundaries of the continents. After this, the real ocean starts, which is called the territory of the deep sea. Scientists are engaged in studying continental slopes. In this part, many signs of river-valley-like canons or undersea narrow deep valleys Submarine Canyons have been found, with different opinions gathering about their origin. The area of continental slopes will be about 30 million square miles.
DEEP SEA FLOOR
The Deep Sea Floor is the most elaborate in which there are flat plains and deep trenches. There are also ridges on the flat side. In this low-lying region of the bottomless ocean, the materials brought by the rivers cannot reach. They are actually as old as the sea itself. As far as we know, these ten crores of years ago, they have never been empty of water. But this does not mean that the shapes of the Deep Sea Floor do not change. When the cooling earth shrinks and its inner part is separated from the northern layer due to shrinking, the surface begins to fold and the volcanic lava erupts through the cracks and takes the form of a sharp mountain. Many volcanic mountains are found within the oceans, which when they reach above sea level, become volcanic islands. A series of small hills submerged within the sea are also found which obstruct the flat shape of the oceanic plain.
The deep sea floor of the ocean is often near continents, such as Mindanao, which has a depth of 35,640 ft. Is one of the deepest troughs in the world. It is in the east of the Philippines. East of Japan is the Tuscarora Deep trough, which has a depth of 29,250 ft. Is adjacent to Japan.