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10:50 Mar 30 2010

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Scientific survey of fossil glacier to begin in NW China
10:47, March 30, 2010  


Photo shows a view of the Lhaakarna scenic spot in Gannan Tibetan Autonomous Prefecture, Gansu Province. (Photo Source: gn.gsta.gov.cn)


Geologists from the Chinese Academy of Sciences will begin to conduct a scientific survey of a typical fossil glacier in Gannan Tibetan Autonomous Prefecture, northwest China's Gansu Province.

Located in the prefecture's Diebu County on the southeastern edge of the Tibetan Plateau, the Lhakarna Glacier has proved to be a glacial vestige of the Quaternary Period (the most recent geological time period, including about the last two million years of the earth), according to Shen Yongping, a researcher of the academy.

Its glacial age is believed to form two to three million years ago and to end 10,000 to 20,000 years ago.

Glaciated valleys and deposits such as horn peaks, cirques, knife-edge and crests, as well as wind-erosion landform including sheep-back rocks and glacial grooves, are visible above the snow line of the glacier towering 3,500 m above sea level.

The survey set for completion at the end of this year involves the research into and data-collection of geomorphologic landscape and environmental evolution of the glacier.

Sheng noted that with a unique origin and complete geomorphic development, the Lhakarna Glacier is crucial to studying ancient geography and climatic changes as well.

Source: Xinhuanet
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