So, why do humans dive to depths of 10,000 meters?
From a large perspective, humankind's understanding of the deep sea is like a circle. The deep submersible is like a needle, which can help us poke a hole in the current circle of understanding to peek into the unknown outside the circle; According to sources, these deep submersibles work at the deepest surface of the earth and play a decisive role in our understanding of the origin of life on earth, the evolution of earth plates, volcanic and seismic zone activities, deep earth mineralization, deep-sea minerals, etc.
The deep sea has high water pressure, low temperature and no light. In the past, it has been considered a forbidden area for life. Through years of human deep-diving scientific research, it has been discovered that there are 392 unique species of life in these extreme environments. They live in an environment with a pressure 1,100 times higher than sea level, forming a complex ecosystem in the deep sea.
The trenches in the deep sea are called the "trash cans of the ocean", where various sediments from continents and oceans accumulate. These sediments contain a large amount of ancient climate, ancient ocean and other ancient environmental information. Humans can infer the evolution of seawater by understanding the salt content, temperature, density and other information in the ancient ocean.
In 1979, the American deep submersible "Alvin" discovered a strange underwater hot spring biological community near the Galapagos hot springs in the East Pacific. These creatures live in the depths of dark rift valleys and are completely unable to form organic matter through photosynthesis. They can only use chemicals near seafloor hot springs for chemical energy synthesis, thus forming a complex and prosperous ecosystem. As a result, scientists have proposed a new hypothesis about the origin of life - the theory of the origin of deep-sea hot springs.
Deep-sea hot springs are caused by seawater going deep along cracks in the seafloor. After encountering magma, it carries a large amount of minerals and erupts from the seafloor to the sea surface, forming a white or black chimney-like structure, which is vividly called the "black chimney" or "white chimney" on the seafloor. chimney".
The temperature here is stable, the content of inorganic matter is rich, and it is not easily disturbed by the strong ultraviolet rays, meteorites and volcanic activities on the surface of the primitive earth's oceans. It is an excellent place for the birth of life.
There are many hydrothermal springs in the deep sea. Bathyscaphes can go deep into the seafloor near trenches or mid-ocean ridges to study the ecosystems around the hydrothermal springs at close range. This will be of great help in solving the unsolved mysteries of the origin of life on earth.
With the help of manned submersibles descending to the deep seabed, humans can also see with their own eyes how the plates collide and transition, and also have the opportunity to collect relevant rock samples. In particular, observing the subducting plate boundaries in ocean trenches can help humans better study plate movements that have occurred in the history of the Earth.
In addition, deep submersibles can conduct deep investigations into ocean trenches, study earthquakes and volcanic activities on the earth, and help humans understand the mineralization near subduction zones.