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Geoelectrical Model of the Deep Structure of the Yenisei–Khatanga Regional Trough

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Abstract—The deep structure of the northern framing of the Siberian Platform is studied based on three-dimensional (3D) inversion of regional magnetotelluric (MT) data. The northern framing of the Siberian platform, in particular, the Yenisei–Khatanga and Lena–Anabar troughs can be considered as highly promising regions for many types of minerals. The interest in this region has been recently growing, and the amount of geophysical activity has been steadily increasing from year to year. The regional surveys are mainly focused on the upper part of the section accessible for drilling. Meanwhile, the obtained geophysical data also contain information about the deep structure of the region. Currently, the deep structure of the Taimyr region and the origin of the troughs are considered in the framework of two most popular theories—the supra-rift and eclogitic hypotheses. The main purpose of this work is to study the deep structure of the Taimyr region based on the results of 3D inversion of magnetotelluric data in the ModEM program. The construction of the 3D geoelectrical model of Taimyr together with joint interpretation of the results of other methods refine the structure of the trough and yield additional evidence in support of one of the theories of its origin.

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Authors and Affiliations

  1. Faculty of Geology, Moscow State University, 119991, Moscow, Russia

    G. E. Slinchuk & A. G. Yakovlev

  2. OOO Severo-Zapad, 117545, Moscow, Russia

    G. E. Slinchuk, D. V. Yakovlev, A. G. Yakovlev & E. P. Shirokova

Authors
  1. G. E. Slinchuk
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  2. D. V. Yakovlev
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  3. A. G. Yakovlev
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  4. E. P. Shirokova
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Correspondence to G. E. Slinchuk.

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Translated by M. Nazarenko

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Slinchuk, G.E., Yakovlev, D.V., Yakovlev, A.G. et al. Geoelectrical Model of the Deep Structure of the Yenisei–Khatanga Regional Trough. Izv., Phys. Solid Earth 58, 655–669 (2022). https://doi.org/10.1134/S1069351322050123

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