The ice and snow on the peak is harder than the stone, and the Da University began to scientific examination on the main peak of the Yangtze River source.

The Yangtze River Daily Da Wuhan Client July 25 (Reporter Yang Jiafeng) From July 24th, the 2nd Yangtze River Getting Team of China University of Geosciences (Wuhan) began to take the opportunity to scientific test on the main peak of the Yangtze River. The goal is Complete the measurement and peak ice core sampling work.

Gladan is towering in the border of Qinghai -Tibet, southwest of Qinghai Province. It consists of a large area of ​​more than 50 kilometers from north and south, more than 30 kilometers wide from east to west, and gathered more than 50 dragons -like mountain glacier groups. , 33.5 ° north latitude, 6621 meters above sea level.

The source of the Yangtze River is the positive source of the Langhe River, the south source is the song, and the north source of the Chumar River. Each Ludan winter snow mountain is the birthplace of the Zhengyuan Luanhe River, and it is also one of the most distinctive glacier snow mountains in my country. At the same time, the telescopic changes of Gladan Dongxue Mountain Glacier have clearly revealed the changes in the local and even the Qinghai -Tibet Plateau and the global climate, which is very scientific value. In May 2002, China University of Geosciences (Wuhan) climbing reached a height of 6,500 meters.

It is reported that Gla Dandong will use Mount Everest two years ago to be carried out, sending people to the top, setting up a GNSS receiver at the top of the peak, and relying on the Beidou system and the Mount Everest area and peripheral GNSS monitoring networking to observe simultaneously to obtain accurate accuracy Value. The most noticeable thing is to take the ice core at Granda Dongfeng.

Alpine ice core sample. Special reporter He Xiaogang Photo

How to take the ice core? On the 21st, a reporter from the Yangtze River Daily visited climbing Grade Dongxue Mountain Base Camp. The natural landscape around Gladan Dongfeng is strange and spectacular. The climbing camp is located on the south side of the Gladan east peak, about 5,300 meters above sea level. Essence

"The sample of the high mountain ice core sampling of the high mountain ice core." At the climbing base camp, Professor Dou Bin of China University of Geosciences (Wuhan) moved out his baby. He told the Yangtze River Daily reporter that the location of the ice core is located at the top of the main peak of the Grandian Dongxue Mountain. Weighing, lithium batteries are out of power quickly. After comprehensive consideration, they designed and processed this alpine ice core sampling device. The main part of the main body is only 8 kg. The auxiliary equipment can be disassembled and loaded with the peak top, and the operation is relatively simple. The device can have an ice core with a diameter of 5 cm and a length of 1 meter.

"Relatively speaking, the biological activities in ice cores are much weaker than in the live water." Feng Liang, an associate professor at the School of Ecological University (Wuhan) Environmental School of Geology, said that there are some microorganisms in ice cores, such as bacteria, algae There are some environmental meanings.

【Edit: Ding】

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