The lakes of the world are dotted with crystal sapphire on the surface of the land, making the earth more colorful. However, do you know how these lakes are formed? ??To understand the causes of the lake, you must start with the structure of the lake. As we all know, the lake is made up of lake water and lake basins that hold lake water. With a low-lying lake basin, water will form into a lake. Therefore, the lake basin is the basis for the formation of lakes.
More: https://www.51240.com/ The??lake basin is carved from nature. Internal forces (such as crustal movements, volcanic activities and other geological effects caused by forces from the Earth) can form lake basins; external forces (such as water, wind and other forces from the Earth’s external forces) can also shape the lake basin. The lake is filled with water and it becomes a lake.??From the causes of the lake, it can be mainly divided into the following types. One is due to the movement of the earth’s crust, causing local breakage or subsidence, and accumulation of water into a lake.
This lake is called a tectonic lake and is characterized by deeper lakes and wide lakes. This is the case in China’s Dianchi Lake, Qinghai Lake, and Lake Tanganyika in Africa. The second type is the crater after the volcanic eruption.
It lasts for a long time and accumulates water into a lake. Such a lake is called Hukou Lake. The Hukou Lake is mostly round, the lakeshore is steep, and the lake is deep.
For example, Changbai Mountain Tianchi is such a Hukou Lake. The third is due to the lava flow blocking the river valley to form a lake. This type of lake is called a dammed lake. Such as China’s Jingbo Lake and the five lotus ponds are of this type. The fourth type is due to the sedimentation of rivers or shallow sea sediments, resulting in local low-lying terrain and accumulation of water into lakes. Such lakes are called sedimentary lakes and are mostly distributed in river deltas and coastal areas. For example, Taihu Lake and West Lake in China are lakes where the bay is gradually separated from the sea by sedimentation. The fifth type is a lake formed by wind-induced wind erosion or low-topography between sand dunes, called Fengcheng Lake.
Such lakes generally have a small area, and the lake is shallow, moving with the change of water source, so it is also called the lake. There are such lakes in Xinjiang and Inner Mongolia. The sixth type is a dissolved lake formed by the dissolution of groundwater in soluble rock (limestone, dolomite, etc.). These lakes are shaped like a funnel, and the lake is small and scattered. The seventh type is a glacial lake formed by glacier erosion and glacial objects (debris matter that is transported and accumulated with glacial movement). It is characterized by various shapes and twists and turns on the shore. There are such glacial lakes in the Qinghai-Tibet Plateau.
In addition to this, there is a special type of lake, which is an artificially built reservoir.