Salt, as an indispensable condiment in human life, plays an important role in maintaining human health. However, have you ever thought that the salt we eat comes from?
1. Sea salt. Sea salt is the first salt obtained by humans**. The oceans on Earth are vast and rich in salt. Salt can be extracted from seawater by a simple method of drying salt. Sea salt is produced all over the world, such as the coastal areas of China and the coastal countries of the Indian Ocean.
Second, well salt. In addition to sea salt, humans also obtain salt from well salt. In some areas, the water table is high and rich in salinity. Groundwater is extracted by digging wells, and salt is extracted from the water by drying or boiling salt. Sichuan, Yunnan and other places in China are famous well salt producing areas.
3. Mineral salt. Mineral salt is the salt extracted from underground rocks. In some areas, underground rocks are rich in salt. Salt is extracted from the ore by extracting it. Mineral salt is produced in relatively small areas, but it accounts for a large portion of global salt production.
Fourth, lake salt. Lake salt is the salt extracted from the lake. Some lakes have a high salt content in their water due to geological reasons. Salt is extracted from the lake water by a simple method of drying salt. Lake salt is produced in relatively small areas, but it also accounts for a certain proportion of production.
5. Composite salt of well and mine.
There are also some areas that have the conditions for mining both well salt and mineral salt. People extracted the salt from the well water and the rock at the same time by mining the wellbore and ore. This complex type of mining results in relatively high salt production in these areas.
In short, the salt eaten by human beings is rich and diverse, which can be obtained through sea salt, well salt, mineral salt, lake salt, etc., as well as through composite mining methods. These different ways of obtaining make it easier for humans to obtain the salt they need, which provides convenience for our lives.
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