ISSN 1004-4140
CN 11-3017/P
Volume 11 Issue 4
Dec.  2002
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ZHU Tao, FENG Rui, HAO Jin-qi. Groundwater and Faults in Resistivity Images[J]. CT Theory and Applications, 2002, 11(4): 43-49.
Citation: ZHU Tao, FENG Rui, HAO Jin-qi. Groundwater and Faults in Resistivity Images[J]. CT Theory and Applications, 2002, 11(4): 43-49.
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Groundwater and Faults in Resistivity Images

  • 1. Center for Seismological Data and Information, China Seismological Bureau, Beijing 100045, China;

  • 2. Institute of Geophysics, China Seismological Bureau, 100081

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  • Received Date: October 17, 2002
  • Available Online: December 16, 2022
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    • Abstract
  • Objective About exploring potential faults, some basic characteristics of a fault and groundwater are revealed, which is significant in geo-technical engineering. Materials and Methods Resistivity tomography has been widely used in exploring potential faults. In general, two sides of a fault have different resistivity features. However, from resistivity distribution in resistivity image,resistivity tomography is often difficult to distinguish a fault from a formation bearing groundwater, because both of them have low resistivity values and have quite similar anomalous patterns. Result It is found that the pattern of groundwater always shows horizontal extension or/and dumpling pattern in local regions, which is quite different from that of a fault with nearly vertical linear structure and good horizontal continuity. Also, there is a common tendency that the depth of groundwater layer in all profiles gradually increases towards a certain direction. Conclusion It is interested that the resistivity image of groundwater can have season抯 variation. Some applications of resistivity tomography in geo-technical engineering are presented and discussed in this paper.
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