The Institute of Karst Geology, China Geological Survey Bureau, Ministry of Natural Resources, said on the 8th that the institute organized a scientific expedition team to confirm the discovery of a standard tiankeng in Leye County, Baise City, Guangxi.
So far, the number of tiankengs in Leye County, the "tiankeng capital of the world", has increased to 30.
Zhang Yuanhai, a senior engineer at the Institute of Karst Geology, China Geological Survey, introduced that after UAV photogrammetry, the mouth of the tiankeng is flat and oval, 306 meters long in the east-west direction, 150 meters wide in the north-south direction, and has a maximum depth of 192 meters and an average depth of about 139 meters. meters, with a volume of more than 5 million cubic meters, reaching the standard of Tiankeng.
Zhang Yuanhai introduced that there are three large openings on the walls of Tiankeng, which are presumed to be the remains of caves in the early evolution of Tiankeng.
Whether it is the evidence of the evolution process of the tiankeng or the unique ecosystem after the formation of the tiankeng, it has high scientific value and popular science value.
Leye County is a typical karst area in southern China. It is the location of the world's largest tiankeng group - Dashiwei Tiankeng Group. 29 tiankeng have been discovered before, and it is known as the "Tiankeng Capital of the World".
(Chen Lixin produced Wang Jiayi's video source Guangxi 702 Cave Expedition Team)
Responsible editor: [Bian Liqun]