On July 22, China's second comprehensive scientific investigation and study on the Qinghai-Tibet Plateau (Second Qinghai-Tibet Scientific Expedition) "Human Activity History and Its Impact" team, on the 22nd, the plateau lake in Ritu County, Ngari Prefecture, Tibet over 4500 meters above sea level Chaka successfully completed the lake sampling work, collecting 0-1.5m, 0-3m, 3-6m, 6-9m sediment core below the lake bottom, as well as several lake sediments.
That day was the third day of the scientific expedition team camping to settle on the shore of Chaka Lake. The expedition team members carefully analyzed and summarized the crux of the failure of the previous trial drilling, researched and proposed targeted solutions and implemented them.
After they pushed the lake drilling platform to a predetermined location on the lake surface with an inflatable speedboat, they first obtained a 0-1.5m core sample from the bottom of the lake through a gravity drill sampler. Then, the scientific expedition team successfully completed the 0-3m bottom of the lake in the same way through hard work. Core sample collection operation.
On this basis, the scientific expedition team made persistent efforts and used piston drill samplers on the lake drilling platform to continuously drill 3-6 meters and 6-9 meters long cores below the bottom of the lake, and harvest high-quality deep core samples of plateau lakes , And also a perfect ending for the conclusion of the Chaka scientific research work.
(Reporter Sun Zifa produced Li Jiali)
Editor in charge: [Zhang Aolin]