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| Application of the DC resistivity method in the study of saline groundwater distribution in the lower reaches of the Yellow River |
XU Yan1,2,3( ), ZHANG Tai-Ping1,2,3, XIE Wei1,2,3, ZHANG Hong-Jun1,2,3, WANG Qiang1,2,3, WANG Wei1,2,3(), GUO Peng4, WANG Kui-Feng1,2,3, YIN Ji-Guang1,2,3, ZHANG Rui-Hua1,2,3 |
1. Shandong Institute of Geological Sciences, Jinan 250013, China
2. Key Laboratory of Gold Mineralization Processes and Resource Utilization, MNR, Jinan 250013, China
3. Shandong Provincial Key Laboratory of Metallogenic Geological Process and Resource Utilization, Jinan 250013, China
4. Shandong Institute of Geophysical and Geochemical Exploration, Jinan 250013, China |
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Abstract This study investigated the distribution characteristics of saline groundwater in the Huimin area of the lower reaches of the Yellow River using the DC resistivity method. Specifically, this study determined the distribution range of the apparent resistivity of the saline water and the variation in the saline-fresh groundwater interface in the area based on resistivity logs, aiming to constrain the resistivity sounding data analysis and improve the interpretation accuracy of the distribution of the saline groundwater. The results are as follows. The top boundary of the saline water in the area mainly had a burial depth of 20~50 m and developed to the shallow surface locally. It was inferred that the bottom boundary of the saline water had a burial of mainly 160~300 m and gradually became shallow in a nearly NW direction. As verified by the later investigation of water samples and drilling, the inferred saline groundwater characteristics agreed roughly with the actual situation. This result indicates that the DC resistivity method has a good application performance in the study of the distribution of saline groundwater.
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Received: 26 January 2022
Published: 27 April 2023
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Geological structure of bedrock in the study area
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Comprehensive curve diagram of resistivity logging of borehole ZK01
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Numerical statistical map of apparent resistivity of the formation corresponding to borehole ZK01
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Resistivity sounding curve beside borehole ZK01
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Apparent resistivity isoline sectional drawing of L2 survey line
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Apparent resistivity isoline sectional drawing of L4 survey line
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Comprehensive stereogram of apparent resistivity section in the study area
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Inferred results of burial depth of top interface and bottom interface of saline water layer in the study area
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Contour plane of apparent resistivity with AB/2=50 m and water sample survey results
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