Abstract
The Lower-Middle Triassic section of the Enmynveem River dated on the basis of macrofauna includes three genetic types of sediments with different structural-textural features: (1) sediments of high-density autokinetic flows; (2) sediments of low-density turbidity flows; and (3) background sediments with thin interlayers of fine-grained turbidites. It has been established that sandy-silty sediments of all three genetic types formed on the continental slope in deep-water conditions, but their accumulation was related to the erosion of rocks in various provenances. Some sediments were formed as the result of the erosion of proximal volcanic complexes, whereas other sediments were related to the erosion of metamorphic rocks on the distal continental land.
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Original Russian Text © M.I. Tuchkova, O.L. Morozov, S.M. Katkov, 2007, published in Litologiya i Poleznye Iskopaemye, 2007, No. 5, pp. 486–502.
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Tuchkova, M.I., Morozov, O.L. & Katkov, S.M. Lower-Middle Triassic rocks in the Enmynveem River (western Chukotka). Lithol Miner Resour 42, 437–452 (2007). https://doi.org/10.1134/S0024490207050033
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DOI: https://doi.org/10.1134/S0024490207050033