Singing sand, also known as whistling sand, whistling sand or musical sand, is a strange and common natural phenomenon in the world. In desert or sand dunes, due to various climatic and geographical factors, fine sand particles, mainly in time, are shaken by the wind and the sand slides down or moves with each other.
Many grains of sand rotate in the airflow, and the place where the surface cavity causes the "diabolo" effect to buzz is called the shaming place. In the west of China, Mingsha Mountain is mainly a desert, and these dunes pile up into mountains, so it is also called Mingsha Mountain.
The crescent spring is nearly 100 meters long from north to south and about 25 meters wide from east to west. The spring is deep in the east and shallow in the west, with the deepest point of about 5 meters. It was named "the first spring in the desert" and has been one of the "Eight Scenes of Dunhuang" since the Han Dynasty. 1994 is listed as a national scenic spot.
Potamogeton and Charophyta grow in the crescent spring, and reeds are dense on the south bank, surrounded by quicksand. Although spring is not covered with sand in the gale. Because "the spring reflects the moon without dust" and "the ancient sand does not fill the spring, and the spring does not wither", it has become a great spectacle.
Mingsha Mountain and Crescent Spring are twin sisters in the desert Gobi. "The mountain is famous for its spirit, and the water is beautiful with spirit". There is a feeling that "the sound of sand is sweet and the crescent spring washes the heart".
Extended data:
Reasons for the formation of crescent spring:
There are four explanations for the origin of Crescent Moon Spring:
One day, the ancient river is still a lake. It is considered that Crescent Spring is the ancient channel of Danghe River nearby. A long time ago, the Danghe River was diverted, and most of the ancient rivers were submerged by quicksand. Only a section of crescent spring is low-lying and flows into the lake due to underground diving.
The lake is constantly replenished by underground undercurrents, so it will not be exhausted. In 1950s, it was measured that the water surface of Crescent Spring was 2 18m long from east to west, 54m wide from north to south, with an average water depth of 5m and a water depth of more than 7m.
Second, the fault seeps into the spring. It is considered that there is an east-west fault on the south side of Crescent Spring. The footwall of the fault raises the groundwater aquifer. When the footwall drops to the nearby groundwater level, the groundwater flows outward into the spring.
Thirdly, because the sand mountain around Crescent Moon Spring is high in the south and low in the north, the wind blowing into the depression around the mountain from the east will go up, and the sand will always roll up along the ridge and sand surface under the action of the wind, so the sand will not be blown into the spring, and the sand mountain will always keep the shape of the ridge like a blade, forming a wonder of the sand spring.
Fourth, manual excavation. It is believed that the shapes of crescent moon spring and half crescent moon are lifelike, which seems to be the result of artificial deliberate modification. In addition, there is a record of "manhole" in ancient books, because it must be the result of human labor.
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