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Аbstract <p>This work presents the results of petro-geochemical and geochronological studies of granitoid fragments collected in terrigenous sediments in the junction zone of the Gakkel Ridge with the Laptev Sea continental margin of Eurasia during the special marine geological expedition “Arctic-2022.” The Carboniferous–Permian age of the granitoids and the maximum proximity of their composition to the granitoids of Northern Taimyr were established. The sources of the studied rocks in the immediate continental frame of the Gakkel Ridge and the Laptev Sea could be granitoids participated in a structure of the fold belts of Northern Taimyr and Severnaya Zemlya.</p>

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The Carboniferous and Permian Granitoids from Terrigenous Sediments in the Junction Zone of the Gakkel Ridge with the Laptev Sea Continental Margin of Eurasia: Composition Affinities, Age Substantiation and Possible Sources

  • 期刊论文

  • 发表日期：

    2025年10月2日

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  • M. V. Luchitskaya,
  • N. P. Chamov,
  • K. E. Degtyarev,
  • M. A. Tkachenko,
  • T. Yu. Tolmacheva,
  • S. A. Sergeev,
  • A. A. Krylov

摘要

Аbstract

This work presents the results of petro-geochemical and geochronological studies of granitoid fragments collected in terrigenous sediments in the junction zone of the Gakkel Ridge with the Laptev Sea continental margin of Eurasia during the special marine geological expedition “Arctic-2022.” The Carboniferous–Permian age of the granitoids and the maximum proximity of their composition to the granitoids of Northern Taimyr were established. The sources of the studied rocks in the immediate continental frame of the Gakkel Ridge and the Laptev Sea could be granitoids participated in a structure of the fold belts of Northern Taimyr and Severnaya Zemlya.