Comparison Analysis of Longitudinal Electrical Conductivity Distribution and Seismic Tomography Velocity Models for the Central Tien Shan Region

Abstract

The paper is dedicated to consider the approach of longitudinal electrical conductivity maps construction for Central Tien Shan region and to complete the comparison analysis of these maps with related seismic tomography data. The results of joint analysis of longitudinal electrical conductivity distribution and seismic tomography velocity models with respect to geological and geophysical senses allow to confirm the already known and to establish the new patterns of structure and geodynamics of the Tien Shan segment of Central Asia such as the manifestation of characteristic structural ensembles, reflection of the longitudinal and transverse segmentation of the Tien Shan, the existence within the framework of a “single” orogen of segments with different near-surface and deep structure and morphological expression. As well, the correlation between the velocity characteristics and geoelectric properties was found. This correlation allows to identify signs of reflection of fault structures in geophysical fields and to clarify the territorial and structural position of both visible and hidden faults. Additionally, in the paper, the geological interpretation of geophysical anomalies is considered.

Keywords

profile magnetotelluric soundings / longitudinal electrical conductivity map / seismic tomography / velocity model / Tien Shan / geophysics

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