Middle Pleistocene Fluvial, Lacustrine And Glaciolacustrine Sediments Of The Czyzow And Kucow Formations (Kucow 9, 10 And 16 Sections), Belchatow Outcrop, Central Poland - The Problem Of Stratigraphical Interpretation

The article presents results of research of three sections (Kucow 9, 10 and 16). Two of them record fluvial and lacustrine interglacial sediments and the third, cold-stage glaciolacustrine sediments. They were formed inside the Miocene-Pliocene syncline depressions in a central part of the southern horst within the Kleszczow Graben. Fluvial and lacustrine deposits of the Middle Pleistocene Interglacial (Mazovian or Ferdynandovian in the Czyzow Formation) are described from the Kucow 9 and 10 sections. Their sediments are located in marginal parts of a buried river valley and within an oxbow palaeolake, then covered by glaciofluvial deposits of the Lawki (Early Saalian) and Rogowiec (Late Saalian) Formations. The Kucow 16 section comprises ice-dam sandy lithofacies (Kucow Formation, Elsterian) of a marginal part in a proglacial lake. Two pollen diagrams of K65/15 and Kucow 9 sections represent the Mazovian (Holsteinian) succession, although in the Kucow 9 section some features are typical for the Ferdinandovian succession.