As so ci ate Ed i tor: Micha³ Zatoñ Lithological and palynological stud ies of Paleogene siliciclastic de pos its from the Yantarny P-1 bore hole lo cated on the western coast of the Sambian Pen in sula (Kaliningrad re gion, Rus sia) show that the suc ces sion is char ac ter ized by nu mer ous sed i men tary dis con ti nu ities re lated to lithification ho ri zons and ero sional sur faces. Sed i men tary gaps are emphasised by hardgrounds. Palynological data sug gest the Selandian-Priabonian age of the suc ces sion and in di cate a num ber of sig nif icant strati graphic gaps. An im por tant change in heavy min eral com po si tion is rec og nized be tween the Paleocene and Eocene de pos its in the area stud ied. A sig nif i cant num ber of re worked Cre ta ceous microfossils is ob served in the Selandian part of the suc ces sion stud ied.

No abstract

No abstract

Pollen, phytoplankton and microfauna from the Palaeogene and Neogene of two boreholes in NE Poland have been studied. Borehole Klucznik 1 is located in the Warmia area, and borehole Sąpłaty 3 borehole in the Mazury area. The oldest palynomorph assemblage comes from the Klucznik sediments; it consists of phytoplankton from the Early Palaeocene (Danian) D1 and D2 dinocyst zone, and from the Selandian D3 zone. The Eocene is present in the both the Klucznik and the Sąpłaty successions. The Middle Eocene assemblage has been dated as late Bartonian and belongs to the D11 dinocyst zone. The Late Eocene (Priabonian) D12 dinocyst zone is also present in both boreholes. Sporomorphs of a Late Eocene palynomorph assemblage point on the proximity of land and on terrestrial vegetation. The dinocyst zone D13, characteristic for the earliest Oligocene ('Latdorfian') has been found in both profiles as well. A Neogene sporomorph assemblage dating from the Middle Miocene (Early Serravallian) occurs only in the Sąpłaty profile. This sporomorph assemblage is correlated with pollen zone VIII. Pollen zone IX is present in the uppermost part of the Middle Miocene (Middle Serravallian). Late Miocene deposits (Late Tortonian) with pollen zone XI are present, too. The Miocene deposits accumulated in densely vegetated swamps, resulting now in the occurrence of lignite. The sedimentary conditions in the Warmia and Mazury regions were identical during the Neogene and Palaeogene, implying that both provinces belonged at the time to one sedimentary basin.

No abstract