STRATYGRAFIA MAKROSZCZĄTKÓW ROŚLIN ZE STANOWISKA CZARNUCHA (RÓWNINA AUGUSTOWSKA, PÓŁNOCNO-WSCHODNIA POLSKA)

Abstract

STRATIGRAPHY OF MACROSCOPIC PLANT REMAINS FROM CZARNUCHA SECTION (AUGUSTÓW PLAINE, NORTHEASTERN POLAND)Abstract. A series of lacustrine and lacustrine-fluvial deposits from a depth of 100.25–130.25m was examined in the Czarnucha section by means of macroscopic plant remains analysis. The analysis covered 58 samples in which 97 taxa of various ranks were identified. These included species currently absent in the area of Poland, as well as extinct species. Some of them were determined for the first time in the Pleistocene of Poland. Eight local zones, denoted as Cza MAZ, were distinguished in the diagram of plant macroremains. They were all characterized by either the presence or increase in the number of indicator taxa and quantitatively significant taxa. On the basis of taxonomic composition of the zones, an attempt was made to reconstruct the development of vegetation in the basin and its closest surrounding, climate changes, and the fluctuations in water level and trophy. The succession of macroscopic plant remains corresponds with the results of palynological study of the section, indicating that the examined lake series was accumulated in the Augustovian Interglacial (= Bavelian Complex or Cromerian I), for which warm and cold periods, as well as units associated with the Narevian and Nidanian Glaciation, are documented.