Processing vertical electrical sounding curves on geoelectrical section constantly changing by N tranformation method

https://tapchi.humg.edu.vn/en/archives?article=551
  • Affiliations:

    1 Hội Khoa học kỹ thuật Địa vật lý Việt Nam;
    2 Trường Đại học Mỏ - Địa chất

  • Received: 3rd-Mar-2016
  • Revised: 18th-Apr-2016
  • Accepted: 30th-Apr-2016
  • Online: 30th-Apr-2016
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Abstract:

Vertical electrical sounding method (VES method) has been applied for hundreds of years (from 1911 in France) and has obtained efficiencies in geological structures, searching for underground water; finding useful minerals and survey foundations of engineering Geology. In VES data processing, the first VES method is Palet, after that geophysicist use computer. Both two methods can not avoid the equivalence principle, so led to the multi-valued. The authors propose a new transformation method – N transformation one. This method allows automatically processing VES data in a different view. The reason for the inaccurate results about geological environment is the measured quantity being apparent parameter – the medium value of defined domain and it represent incorrectly the infiltration depth of geoelectrical section. With the point that environment include the system of continuous thin layer. The authors calculate the resistivity value of differential thin layer at the depth Z by determining anisotropy factor of the geoelectrical section. The results of this method was tested on theoretical VES curves of layered horizontal environment and has proved this method’s effectiveness. However, they will be better for the environment having constantly changing parameter (gradient environment); the layer boundary changes maximum on environmental parameters. The processed results on the actual document show that this method have high-resolution, represent realistic heterogeneity geoelectrical environmental in both 2 and 3 dimensions.

How to Cite
Nguyen, N.Trong and Truong, C.Thi 2016. Processing vertical electrical sounding curves on geoelectrical section constantly changing by N tranformation method (in Vietnamese). Journal of Mining and Earth Sciences. 54 (Apr, 2016).

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