Flame structures and associated deformations in Quaternary glaciolacustrine and glaciodeltaic deposits: examples from central Poland

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Abstract
Glaciolacustrine and glaciodeltaic sediments in the Quaternary of the Kleszczów Graben show many types of penecontemporaneous deformations. Their formation was due to the existence of important vertical anisotropies of the mechanical properties. Flame structures and associated types of deformations occur frequently. These structures are described in this contribution and their origins analysed.