| THE DISCOVERED DEEP BURIED LAKE ICE IN SOURCE REGION OF THE HUANGHE RIVER |
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| 作者姓名： | 王绍令 李位乾 |
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| 作者单位： | Wang Shaoling(Lanzhou Institute ofGlaciology and Geocryology，Chinese Academy of Sciences，Lanzhou 730000，PRC)Li Weiqian(906 Hydrogeological and Engineering Geological Brigade，Ministry of Geology and Minerals，China，Xining 810007，PRC) |
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| 摘 要： | The 4.45 m-thick pure ice lens have been discovered firstly at depth from 19.81 -24.26 m in the bore No.6, which locates in north bank of the Ngoring Lake. In source region of the Huanghe (Yellow) River, 14C dating, X -ray diffraction, pollen analysis, micropalaeontology, chemical components, environmental isotope 2H, 3H, 18O and freezing point of the ice and water samples from the bore have been tested and microorganism in the ice have been also appraised with microscope. Combined with the research on geomorphy and Quaternary around the lake, the ice lens are determined as a kind of deep-buried lake ice, formed in 35,030-45,209 yr.B.P., and annual mean air temperature was about -10℃ during that time.
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The discovered deep-buried lake ice in source region of the Huanghe River |
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| Shaoling Wang,Weiqian Li.THE DISCOVERED DEEP BURIED LAKE ICE IN SOURCE REGION OF THE HUANGHE RIVER[J].Chinese Geographical Science,1993,3(3):247-254. |
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| Authors: | Shaoling Wang Weiqian Li |
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| Institution: | (1) Lanzhou Institute of Glaciology and Geocryology, Chinese Academy of Sciences, 730000 Lanzhou, PRC;(2) 906 Hydrogeological and Engineering Geological Brigade, Ministry of Geology and Minerals, China, 810007 Xining, PRC |
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| Abstract: | The 4.45 m-thick pure ice lens have been discovered firstly at depth from 19.81–24.26 m in the bore No.6, which locates in
north bank of the Ngoring Lake. In source region of the Huanghe (Yellow) River,14C dating, X-ray diffraction, pollen analysis, micropalaeontology, chemical components, environmental isotope2H,3H,18O and freezing point of the ice and water samples from the bore have been tested and microorganism in the ice have been also
appraised with microscope. Combined with the research on geomorphy and Quaternary around the lake, the ice lens are determined
as a kind of deep-buried lake ice, formed in 35,030–45,209 yr.B.P., and annual mean air temperature was about −10°C during
that time. |
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| Keywords: | source region of the Huanghe River deep-buried lake ice palaeoclimate |
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