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UDC 551.734.2:551.734.3:551.83 |
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STRUCTURE, ROCK ASSOCIATION AFFINITY AND FACIES VARIABILITY OF THE ILEMOROVO FORMATION (MIDDLE DEVONIAN, GIVETIAN) IN THE SOUTHERN MINUSINSK TROUGH
А. N. Filimonov
National Research Tomsk State University, Tomsk, Russia
A paleogeographic reconstruction of the evolution of the Middle Devonian Ilemorovo Formation in the southern Minusinsk trough is presented. The main stages of the formation of the trough (from the Early Devonian through the latest Middle Devonian) were traced in order to identify controls on structural inheritance of the sedimentation zones and define trends in their evolution. The established early and late Ilemorovo stages of the basin evolution during sediment accumulation in the Ilemorovo Formation are shown to be mutually different in the structure of the section and in the extent of the sedimentation area.
Keywords: Altai-Sayan folded region, Minusinsk trough, Middle Devonian, Ilemorovo Formation.
DOI 10.20403/2078-0575-2025-3-3-16
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