Witold Paweł Alexandrowicz, Maria Grażyna Łanczont
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Late Pleistocene malacofauna of (MIS-2–MIS-4) loess-palaeosol sequence in Zalesie near Przemyśl (southern Poland)
Lithological and malacological analysis was carried out at the loess site in Zalesie near Przemyśl. The profile exposed here comprises a loess-palaeosol sequence L-1 and is correlated with the Pleniglacial (MIS-2–MIS-4) of the Weichselian glaciation. Three loess layers separated by interstadial palaeosols are recognised here. Within the two younger parts of the cover, corresponding to the younger middle loess (LMs) and the younger upper loess (LMg), and in the soil horizon (Gi/LMs) separating them, numerous mollusc shells were found. The diversity of the malacofauna allowed five types of faunal assemblages to be distinguished. The main faunal components in the younger middle loess were open-country species typical of the dry subarctic steppe. The interstadial palaeosol horizon developed on this loess was dominated by hygrophilous taxa characteristic of the subarctic tundra environment. The malacofauna of the youngest part of the loess bed (LMg) contained mainly mesophilous snails, indicating the presence of open but relatively humid biotopes. The profile in Zalesie belongs to a tiny group of loess sites in Poland with a complete malacological sequence preserved, covering both the younger upper and middle loesses and the palaeosol horizon separating them.
期刊介绍:
The policy of the Geological Quarterly is to publish significant contributions of information and geological insight relevant to an international readership. The journal has been issued since 1957 at the Polish Geological Institute - National Research Institute and, at present, is the leading Earth sciences journal in Poland. All aspects of Earth and related sciences, and universal and broad regional rather than locally oriented topics are covered.
The journal is intended to be an international forum for the exchange of information and ideas, particularly on important geological topics of Central Europe.