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Abstract <p>Based on the study of metaterrigenous rocks of the Sarma segment of the Akitkan orogenic belt, it has been established that the Khargitui Formation combines three units of different age (2.7–2.5, 2.15–1.95, and 1.00–0.72 Ga). The rocks of the Ilikta Formation represent molasse deposited during the orogenic collapse stage (1.95–1.91 Ga). The Anai Formation was accumulated in the Tonian within intracontinental basins. The obtained data supplement the geodynamic model of the Sarma segment in the Archean–Proterozoic.</p>

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Geodynamic Evolution of the Sarma Segment (Akitkan Orogenic Belt, Siberian Craton) in the Archean–Proterozoic

  • 期刊论文

  • 发表日期：

    2026年7月22日

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  • U. S. Efremova,
  • T. V. Donskaya,
  • D. P. Gladkochub,
  • A. M. Mazukabzov,
  • A. V. Ivanov,
  • N. V. Bryansky

摘要

Abstract

Based on the study of metaterrigenous rocks of the Sarma segment of the Akitkan orogenic belt, it has been established that the Khargitui Formation combines three units of different age (2.7–2.5, 2.15–1.95, and 1.00–0.72 Ga). The rocks of the Ilikta Formation represent molasse deposited during the orogenic collapse stage (1.95–1.91 Ga). The Anai Formation was accumulated in the Tonian within intracontinental basins. The obtained data supplement the geodynamic model of the Sarma segment in the Archean–Proterozoic.