The deepest lake in the world?

Lake Baikal is the deepest lake in the world and the largest freshwater lake in Eurasia. The lake is 636 kilometers long, with an average width of 48 kilometers and an area of 3 1.500 square kilometers. It is formed by stratum collapse, with an altitude of 455 meters and an average water depth of 730 meters.

The China of Lake Baikal, called Beihai in ancient times, was once the main activity area of northern tribes in China, which was controlled by the Qing Dynasty for a short time. Lake Baikal is inhabited by ethnic minorities, among which Buryats, a branch of Mongolian, have a large population. Lake Baikal is known as the "Pearl of Siberia", and UNESCO registered it as a world natural heritage in 1996.

Extended data:

Lake Baikal was formed by a strong earthquake after the collision between the Indian plate and the Eurasian plate about 25 million years ago, and the lake basin was formed 20 million to 25 million years ago. According to paleontological and geological data, the former Soviet scientist Vilexiakin speculated that there was a vast outer Baikal Sea east of Lake Baikal in Mesozoic and Jurassic. Later, due to crustal changes, an inland lake, Lake Baikal, was left.

With the continuous addition of rain and river water, the salt water becomes very weak. In the early 1990s, scientists did not find anything about Mesozoic in the core samples obtained by drilling in Lake Baikal. It is proved that there are no Mesozoic sedimentary rocks, only Cenozoic sedimentary rocks. Lake Baikal has been a land for a long time, and Lake Baikal is a fault lake formed by crustal fracture, thus denying the statement that the marine life of Lake Baikal is a regressive species.