When did Lop Nur dry up, and how did that big ear form?

Lop Nur dried up around 1970, and the reason for the formation of big ears is because the water is deposited with sediment in the process of flowing, and it looks really good when viewed from above.

Lop Nur dried up during the great drought and flood, and the "big ears" were formed slowly through the water flow and the flow force generated by the water and the underwater vortex when it was underwater.

Lop Nur dried up in the late 70s. The reason for this is that the flood water passes through the desert and carries a large amount of sediment that flows into the lake and impacts and erodes the bottom of the lake.

Lop Nur has dried up since 1970 and is now only a large salt crust.

The secret of the forbidden land, known as the "Sea of Death" Lop Nur, dried up Lop Nur to come back to life?

Lop Nur is located in the eastern part of the Tarim Basin in Xinjiang Uygur Autonomous Region, with an area of about square kilometers and an elevation of one meter above sea level, making it the second saltwater lake in China after Qinghai Lake. The lake is gradually shrinking due to the diversion of the river and changes in the amount of water entering the lake. Salt flats are widely distributed along the coast.

Although the lake is surrounded by desert land, it was the passage to the famous "Silk Road" in the West in ancient times. Regarding Lop Nur, the biggest question today is whether Lop Nur is mobile and whether it is often "moving".

Some people believe that Lop Nur has been a famous migratory lake since ancient times, and since the formation of Lop Nur, its position and shape have changed from north to south with the change of water volume, sometimes northern, sometimes southern, sometimes full of water, sometimes very little, or even dry.

According to the field investigation data and satellite analysis of Lop Nur conducted by the geomorphology group of the Xinjiang Comprehensive Expedition Team of the Chinese Academy of Sciences, it is proved that Lop Nur is not a migratory lake or an alternate lake. Since the Quaternary period, Lop Nur has never left the Lop Nur depression, and only changes in its "hometown". By the Sui and Tang dynasties, the amount of water entering Lop Nur also increased due to the increase in river runoff fed by ice and snow in the high mountains.

In the Yuan Dynasty, as the climate in the northwest of China became drier, the water volume of the Tarim River became less, and the area of Lop Nur shrank to a minimum. According to relevant information, during the driest period, the water surface of Lop Nur was very small, shaped like a chicken heart, but in the long historical evolution of Lop Nur, it has always fluctuated in the lake basin, and the lake water has never exceeded the lake surface outside the lake basin. In addition to the change of ancient hydrological conditions, there is also an important reason for the change of its rise and contraction, which is the movement of the latest fault block.

In the process of water surface expansion and contraction, in addition to the most important structural factors, paleohydrological factors, there are also human factors. For thousands of years, historical records have recorded the situation and location changes of Lop Nur, and it has never been called a wandering lake. Until modern times, names such as "wandering lake" appeared, and many geography books not only named "wandering lake", but also said that it was a "typical wandering lake" in the world.

Moreover, according to the field investigation and analysis of the Chinese Academy of Sciences, the two shores of Lop Nur are relatively stable, while the east shore of the lake has left traces of ancient lake shores. It can be assumed that in this depression there were many lakes and marshes scattered throughout history, which could create larger lakes when runoff was abundant, and then disperse or disappear again when there was a drought.

What does this mean? Perhaps the problem should involve social factors. In addition to the geological changes in the geological era, when entering the class society, the diversion of some rivers is always dominated by human factors, especially the diversion of the lower reaches of the Tarim River and the Peacock River, which are arid and rainless.

Lop Nur was "dried up in the late 30s or early 40s of the 20th century".