Geoelectric section of the Central Tien Shan: Sequential inversion of the magnetovariational and magnetotelluric data along the Naryn Line |
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| Authors: | M N Berdichevsky N S Golubtsova Iv M Varentsov P Yu Pushkarev A K Rybin E Yu Sokolova |
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| Institution: | 1.Geological Faculty,Moscow State University,Moscow,Russia;2.Geoelectromagnetic Research Centre, Schmidt Institute of Physics of the Earth,Russian Academy of Sciences (GEMRC IPE RAS),Troitsk, Moscow oblast,Russia;3.Scientific Station of the Russian Academy of Science,Bishkek,Kyrgyzstan |
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| Abstract: | The paper presents the results of 2D inversion of deep magnetotelluric (MT) and magnetovariational (MV) soundings along the
Naryn Line. The method of partial (sequential) inversions is used. According to this method, at the first stage, magnetovariation
responses are used for the localization of deep anomalies of electrical conductivity, and then the magnetotelluric sounding
data are invoked to refine the structure of the host medium and the structural details in the upper part of the section. It
is shown that this approach enables one to estimate the informativeness of separate components of the electromagnetic field,
to reduce the distorting influence of the near-surface geoelectric inhomogeneities, and to increase the stability of the final
solution of the inverse problem. |
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