The formation of salt lakes usually has three elements: dry climate, closed terrain and historical evolution. First of all, the climate is dry and precipitation is much less than evaporation. Chaerhan Salt Lake is located in the southern margin of Qaidam Basin, with dry climate and high temperature. Therefore, the salt elements in the lake will reach saturation to a certain extent, even saturation, and finally precipitate on the lake surface.
Is the limitation of the terrain. Because the terrain is closed, all inland rivers will flow into the lake, and it is difficult for the lake to flow out, so salt will flow into the lake along the river. This is the case in Chaerhan Salt Lake. Due to the dry climate and transpiration, the seawater in the lake became more and more salty, and more and more salt was formed, eventually forming a salt lake.
Salt lakes are not only formed on land, but also through a bay. This salt lake is called "sea salt". The reason for its formation is the gradual development and expansion of the coastal sand bar, which separates it from the sea and becomes a closed area. Coupled with transpiration, the salt content in seawater will be higher and higher, and eventually a salt lake will be formed.
Chaerhan Salt Lake is mainly composed of potassium salt, which is one of the important edible salt producing areas in China. The salt reserves in the whole salt lake exceed 2 billion tons. If calculated according to the market price, the price of these salts should be around120 billion. Chaerhan Salt Lake contains more than 97% potassium chloride resources in China.
Geographical features:
In Mongolian, Erhan means "a place with dense rivers". The lowest point of Chaerhan Salt Lake is more than 2200 meters above sea level, which consists of four salt lakes: Dabson, South Hobson, North Hobson and Sunny. Into the Golmud River, Sulinggole River and other inland rivers 10. "Chaerhan" is Mongolian, which means "salt ze".
Around the salt lake, the terrain is flat and the desert is boundless, but the scenery is strange. The whole lake seems to be a fertile land that has just been reclaimed. It looks like fish scales, layer by layer, wave by wave. Unfortunately, there is no green grass on the land, no fish in the lake, no birds in the sky, and there is silence.