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Explanation of Electrical D. C. Resistivity Sounding at the Head Waters of Urumqi River, Tianshan

Zeng Zhonggong and Qiu Guoqing (Lanzhou Institute of Glaciology and Geocryology, Chinese Academy of Sciences)  
The thicknees explanation of 12 curves of electrical D. C. resistivity sounding obtained from the head of Urumqi River leads to the following conclusions: 1. The thicknees of permafrost is about 50-70 m at the sites around the Daxigou Meteorological Station (about 3 540 m a. s.l.), and increases to 90 or 100 m in the empity cirques (about 3 870 m a.s.l.). 2. The high resistivity of the No. 5 rock glacier implies a high ice content in the pore of the rock glacier. 3. There is a buried glacial ice body with the thicknees of 2 m at the site just exposed from the ice tongue of Glacier No. 1. The buried ice body in the moraine, however, formed 4 or 5 years ago has been melt already.
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