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Global Geology 2015, 18(2) 140-144 DOI:
ISSN: 1673-9736 CN: 22-1371/P |
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False anomaly recognition with horizontal differential field lines method in high- density electrical technique and its application in Xinlei Quarry��Jiuquan |
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LIU Lijia, ZHU Shi, CAO Xiaoyue, BEN Fang and YIN Changchun |
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College of Geo- Exploration Science and Technology��Jilin University��Changchun 130026��China |
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Abstract��
As an important geophysical tool��high density electrical technique infers the underground geological structures by processing and inverting the apparent resistivity data�� Currently��the false anomalies have been frequently occurred in the graph of apparent resistivity pseudo- section or inverted geoelectrical section obtained from high- density electrical technique��and are difficult to remove�� In this study��the authors explain the mech- anism of the false anomalies and put forward the horizontal differential field method to identify the false anoma- lies�� Based on the analysis of modeling results��this method is applied in the surveying data in Xinlei Quarry of Jiuquan��and the results confirm the effectiveness of the horizontal differential field method�� |
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Keywords��
horizontal differential field method
high density electrical technique
apparent resistivity
false anomaly
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Received Revised Online: |
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