Journal of Jilin University(Earth Science Edition) ›› 2015, Vol. 45 ›› Issue (6): 1846-1854.doi: 10.13278/j.cnki.jjuese.201506302

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Preliminary Study and Demonstration of Tensor CSAMT Data Processing Technology

Meng Qingkui1, Lin Pinrong2, Li Yong2, Li Jianhua2, Zhu Hongwei1, Li Dang2   

  1. 1. China Aero Geophysical Survey and Remote Sensing Center for Land and Resources, Beijing 100083, China;
    2. Institute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Science, Langfang 065000, Hebei, China
  • Received:2015-01-23 Published:2015-11-26

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Abstract:

Scalar CASMT is inadequate to the face of great depth and three-dimensional detection; while tensor CSAMT is becoming a research focus. On the basis of previous studies, two kinds of tensor CSAMT processing technologies are proposed; which are Mohr analysis and the traditional coordinate rotation. By innovative use of the integrated electrical instruments developed in China for the first time, we demonstrate the application of tensor CSAMT. The results show that through Mohr analysis and traditional coordinate rotation, the vertical and horizontal structure of underground geological bodies can be qualitatively analyzed; apparent resistivity and impedance phase in principal axis orientation correspond with the targets; and the comprehensive analysis of resistivity inversion and drilling information are profitable for the establishment of geological-geophysical models on the test area.

Key words: tensor CSAMT, coordinate rotation, Mohr circle, demonstration application0

CLC Number: 

  • P631.3

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