Deep sinks suck like bottomless caves in China

The pit hole was found by Chinese and French scientists in the Guangxi Zhuang Autonomous Region, China, up to 420 meters deep, nearly double the normal level.

According to the International Business Times, the sinking pit was discovered during an 8-day expedition starting on February 26. This collapsed pit stretches 16.5 km, inside there are many waterfalls, rivers and stalagmites. Normally, the sinking holes are usually about 250m deep. The hole is large, this size is very rare in China.

The new giant pit was discovered in Guangxi, China.(Photo: Xinhua).

The team discovered many species of animals that live inside the pit, including bats and snakes. They also found some unidentified invertebrate animals.

Dashiwei, the largest slump in the previous province of Dashiwei, is 420m wide and 613m deep. At the bottom of the pit is a forest of more than 10,000 square meters. In 2003, Dashiwei became a cave museum for the public to visit. Xiaozhai, the largest slump in the world today, is found in Chongqing at the source of the Yangtze River, 660 meters deep and has a capacity of 119 million cubic meters.

Pit slums often appear in limestone areas. In terms of geology, the sinking hole is the subsidence of the surface soil layer due to a soluble rock decaying at great depths such as limestone, chalk or gypsum. The pits are very popular in China. Their number increased from 54 holes in 2007 to 94 holes in 2009. In August 2012, 99 pits appeared in Beijing in just 22 days.