Mrongovian and Brokian, new stratigraphical units of the Middle Pleistocene in northeastern Poland

Authors

  • Stanisław Lisicki Polish Geological Institute, Rakowiecka 4, PL-00-975 Warszawa
  • Hanna Winter Polish Geological Institute, Rakowiecka 4, PL-00-975 Warszawa

Keywords:

northeastern Poland, Middle Pleistocene, palynostratigraphy, lithostratigraphy

Abstract

Results of palynologic and lithologic analyses of 6 key sections from northeastern Poland have been reinterpreted. Two new stratigraphic units within the Middle Pleistocene were defined, the warm Mrongovian and the cold Brokian. A completely new interstadial pollen succession, named the Mrongovian one, was distinguished. Lake and lake-fluvial deposits of the Mazovian Interglacial (upper series) and Mrongovian Interstadial (lower series) are separated with a till. Stratigraphic rank of the separating till results from determination of a new palynostratigraphic unit. Petrographic character of its lithologic type and stratigraphic location suggest correlation of this till either to a younger stadial of the Wilgian Glaciation or to a new glaciation.

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Published

2013-02-15

Issue

Vol. 43 No. 1 (1999)

Section

Articles

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