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Three-Dimensional Model of the Ilmen Crustal Conductive Anomaly Based on Magnetotelluric Soundings

  • V. A. Kulikov,
  • Iv. M. Varentsov,
  • P. V. Ivanov,
  • A. P. Ionicheva,
  • S. Yu. Kolodyazhny,
  • I. N. Lozovsky,
  • T. A. Rodina,
  • N. M. Shagarova,
  • A. G. Yakovlev

摘要

Abstract

Since 2020, magnetotelluric/magnetovariational (MT/MV) soundings have been conducted in the triple-junction area of major segments (Fennoscandia, Sarmatia and Volga–Uralia) of the East European Platform. The study area extends to the north the SMOLENSK sounding array with inclusion of new observations from summer, 2023. Thus, the SMOLENSK array approaches from the south to the LADOGA sounding array. This article presents the results of MT/MV data invariant analysis, describes the selection of data ensembles for three-dimensional (3D) inversion, and analyzes the resulting 3D resistivity model.