Middle Eocene calcareous nannofossils from the Roztocze region (SE Poland) - their biostratigraphic and palaeogeographic significance

Elżbieta Gaździcka

Abstract


A biostratigrnphic study of the Palaeogene deposits from the Roztocze region (south-eastern Poland) was carried out using calcareous nannoplankton. The glauconitic sands overlying the Upper Cretaceous calcareous series are considered to be Middle Eocene in age. The coccolith assemblages are indicative of nannofossil NP 16 Discoaster tani nodifer Zone. The sediments were deposited during transgressive phase of the Middle-Late Eocene marine episode. The Middle Eocene epicontinental basin extended farther southward than has been stated previously.


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