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Agnieszka Marcewicz-Kuba and Danuta Olszewska

The influence of a hard coal type on the degree of sulphur dioxide removal

In this paper the authors have studied the properties of zeolite and montmorillonite doped with the nickel and cobalt cations in the removal of SO2 from the combustion gases process based on the DESONOX method. Burning coal from the hard coal from the Silesian Coal Basin mine "Julian" and the Lubelskie Coal Basin mine "Bogdanka" with supports only - did not show any reduction of the SO2 emission in the combustion gases.

Open access

Agnieszka Marcewicz-Kuba and Danuta Olszewska

Application of recycled natural aluminasilicate doped with vanadium for the decontamination of the air

This paper reports studies on the influence of vanadium concentration on the catalytic activity of DESONOX catalysts (in DESOX reaction) based on modified montmorillonite from Jelsovy Potok. The investigation of the influence on the physicochemical properties of the catalysts on their behaviour has also been studied.

Open access

Ireneusz Walaszczyk, Zofia Dubicka, Danuta Olszewska-Nejbert and Zbigniew Remin

Abstract

The biostratigraphic importance, current zonations, and potential for the recognition of the standard chronostratigraphic boundaries of five palaeontological groups (benthic foraminifers, ammonites, belemnites, inoceramid bivalves and echinoids), critical for the stratigraphy of the Santonian through Maastrichtian (Upper Cretaceous) of extra-Carpathian Poland, are presented and discussed. The summary is based on recent studies in selected sections of southern Poland (Nida Synclinorium; Puławy Trough including the Middle Vistula River composite section; and Mielnik and Kornica sections of south-eastern Mazury-Podlasie Homocline) and of western Ukraine (Dubivtsi). The new zonation based on benthic forams is presented for the entire interval studied. Zonations for ammonites, belemnites and inoceramid bivalves are compiled. All stage boundaries, as currently defined or understood, may easily be constrained or precisely located with the groups discussed: the base of the Santonian with the First Occurrence (FO) of the inoceramid Cladoceramus undulatoplicatus; the base of the Campanian with the Last Occurrence (LO) of the crinoid Marsupites testudinarius and approximated by the range of the foraminifer Stensioeina pommerana; and the base of the Maastrichtian approximated by the FO of the inoceramid bivalve Endocostea typica and the FO of the belemnite Belemnella vistulensis. The positions of substage boundaries, as currently understood, are constrained in terms of the groups discussed.

Open access

Agata Jurkowska, Ewa Świerczewska-Gładysz, Zofia Dubicka and Danuta Olszewska-Nejbert

Abstract

The stratigraphical distribution of Porosphaera globularis, a common calcareous sponge in the Upper Cretaceous (mostly Campanian and Maastrichtian) of Poland was studied. The presented material, both new and from museum collections, comes from the Campanian of the Miechow Synclinorium, in southern Poland, and from the Lower Campanian of Mielnik in the south-eastern part of the Mazury-Podlasie Homocline, in eastern Poland. The significance of the species in extra-regional correlation, its palaeobiogeography and stratigraphical potential is critically reviewed.

Open access

Sebastian Borucki, Jacek Łuczak, Dariusz Zmarzły, Andrzej Cichoń, Jerzy Filipiak, Tadeusz Gudra, Dariusz Banasiak, Krzysztof Herman, Krzysztof Opieliński, Tomasz Hejczyk, Krzysztof Jasek, Mateusz Pasternak, Michał Grabka, Witold Kardyś, Andrzej Milewski, Adam Kawalec, Michał Kunicki, Marta Okoń-Fąfara, Bartłomiej Fąfara, Aneta Olszewska, Piotr Pruchnicki, Marcin Wrzosek, Józef Nicpoń, Przemysław Podgórski, Tadeusz Pustelny, Tomasz Rogala, Piotr Serafin, Marta Okon-Fafara, Marcin Szugajew, Czeslaw Lesnik, Adam Kawalec, Olga Stec, Tomasz Rogala, Adam Kawalec, Grzegorz Szerszeń, Franciszek Witos, Daria Wotzka, Agnieszka Boruń, Adam Bald, Marzena Dzida, Sylwia Jężak, Monika Geppert-Rybczyńska, Katarzyna Kaczmarek, Tomasz Hornowski, Arkadiusz Józefczak, Arkadiusz Józefczak, Tomasz Hornowski, M. Kubovčíková, A. Skumiel, Z. Rozynek, M. Timko, Krzysztof Klimaszewski, Peter Kopcansky, Bogumił Linde, Milan Timko, Vyacheslav N. Verveyko, Marina V. Verveyko, Darya V. Verveyko, Andrey Yu. Verisokin, Nikita S. Chebrov, Witold Mikulski, Dariusz Pleban, Danuta Augustyńska and Bożena Smagowska