New Data on Late Paleozoic Conglomerates of Wrangel Island and Their Geological Interpretation

A new geological interpretation of conglomerates on Wrangel Island reveals distinct age differences between two types found in the Central tectonic zone. The first type, dominated by metamorphic schists and mafic volcanics, likely predates the second type, which contains rounded quartz, limestone fragments, and faunal remains—similar to intraformational conglomerates from the Northern zone. Faunal analysis confirms the Guadalupian–Lopingian (Middle–Late Permian) age of the latter, suggesting local tectonic or sedimentary rearrangements during the Pennsylvanian Bashkirian Age and Middle–Late Permian periods. These findings mirror patterns observed in Canada’s Sverdrup basin, offering insights into Paleozoic geological dynamics.

Tuchkova, M. I., Filimonova, T. V., Isakova, T. N., Zagoskina-Beloshei, V. E., Sokolov, S. D., & Dubenskiy, A. S. (2025). New Data on Late Paleozoic Conglomerates of Wrangel Island and Their Geological Interpretation. Stratigraphy and Geological Correlation, 33(2), 195–214. https://doi.org/10.1134/s0869593824700333