Why is sea water salty?
Why is sea water salty?
Why is sea water salty?
It is the system of God and it is part of our nature. If the
water of the sea was not salty, there would be no fish, and there would be no
human habitation on the planet. The sea smelled so bad that it would be
impossible to live on Earth.
Salt crystals
The main reason why sea water is salty is because of
the sources of salt in the sea.
1. The largest source of salt is hydrothermal fluid in the
ocean, which comes from vents in the ocean floor. Seawater seeps into cracks in
the ocean floor and is heated by magma from the Earth's core. Heat causes a
series of chemical reactions. The water loses oxygen, magnesium, and sulfate,
and picks up metals such as iron, zinc, and copper from the surrounding rocks.
which are mixed with warm seawater from the vents into salt rocks.
2. Some sea salts come from underwater volcanic
eruptions, which release minerals directly into the ocean.
3. Salt domes also contribute to ocean salinity. These domes,
vast deposits of salt that formed over geological time, are found underground
and under the sea around the world. They are common on the continental shelf of
the northwestern Gulf of Mexico.
4. The two most abundant ions in seawater are chloride and
sodium. Together, they make up about 85 percent of all dissolved ions in the
ocean. Magnesium and sulfate make up another 10 percent of the total. Other
ions are found in much lower concentrations. Salt concentration in seawater
varies with temperature, evaporation and precipitation. Salinity is generally
lower at the equator and poles and higher at mid-latitudes. Average salinity is
about 35 parts per thousand. Put another way, about 3.5 percent of the weight
of seawater comes from dissolved salts.
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| Why is sea water salty? |
5. Microorganisms such as algae and some types of bacteria
also produce and excrete salt, which contribute to the overall salt content of
the ocean.
6. When the underground magma rich in various components
comes to the surface as lava, it also brings all the salt. Remember that most
of the lava on Earth comes out of the ocean, which has entire mountain ranges
like the "Ring of Fire".
7. The repeated collision of water waves with the salt
mountain on the beach causes its erosion, which leads to the increase of salt
in the water.
8. The water of the river is actually the water of the sea,
which evaporates and becomes a cloud and falls back into the sea in the form of
a river. Therefore, river water is sweet. On the other hand, the amount of salt
in sea water does not decrease, so it is always salty.
The effect of rainwater is slightly acidic. Now, when the
rain falls on the rocks, on the mountains, it forms salt through chemical
processes, now these salts are added to the streams, rivers, etc.
But because this water is less than the sea and is fresher,
it does not feel as salty as the sea water. The water of the rivers is added to
it.
And in the same way, this same water has been continuously
added to the sea for thousands of years. Therefore, the sea water is more
salty.
The interpretation is in Ruh al-Ma'ani that the water of the
rivers does not rot due to flow and to protect the water of the sea from
rotting, Allah Almighty has created salt in it.
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