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《Chinese Journal of Geophysics》 2016-09
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Application of geophysical logging in the surveys of permafrost thickness and underground ice

JIANG Guan-Li;WU Qing-Bai;State Key Laboratory of Frozen Soil Engineering,Cold and Arid Regions Environmentaland Engineering Research Institute,Chinese Academy of Sciences;  
Based on geophysical borehole logging data and catalog information of the three boreholes in permafrost regions of the Qinghai-Tibet Plateau,the relations between geophysical logging data and permafrost thickness as well as the distribution of underground ice were analyzed.The result shows that in soils,the caliper data and lateral resistivity data can be used to find the permafrost thickness;but in rocks,the abovementioned methods are not effective.In addition,the gamma-gamma data and the lateral resistivity data can be used to distinguish the distribution of the underground ice if the underground ice has a certain thickness or is thin but closely spaced.The research may have application values to using geophysical logging for the survey of permafrost.
【Fund】: 中国科学院西部行动计划(KZCX2-XB3-03);; 国家自然科学基金(41330634 41001038)资助
【CateGory Index】: P631.81
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