The Devonian/Carboniferous boundary interval in Poland: multidisciplinary studies in pelagic (Holy Cross Mountains and S
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ORIGINAL PAPER
The Devonian/Carboniferous boundary interval in Poland: multidisciplinary studies in pelagic (Holy Cross Mountains and Sudetes) and ramp (Western Pomerania) successions Hanna Matyja 1 & Tatiana Woroncowa-Marcinowska 1 & Paweł Filipiak 2 & Paweł Brański 1 & Katarzyna Sobień 1 Received: 9 April 2019 / Revised: 5 March 2020 / Accepted: 13 July 2020 # The Author(s) 2020
Abstract A multidisciplinary study of the Devonian–Carboniferous boundary interval in pelagic successions of the Holy Cross Mountains and Sudetes and the ramp successions in the Western Pomerania region (Poland) is presented herein. The analysis applies the results of new palaeontological and biostratigraphic studies based mainly on conodonts, ammonoids and palynomorphs, biostratigraphic results interpreted earlier by different authors that have been re-examined, and geochemical and mineralogical characteristics, as well as magnetic susceptibility measurements across the Devonian–Carboniferous boundary interval. The study is focused on the interval from the Famennian ultimus conodont Zone to the Tournaisian duplicata conodont Zone, and from the Famennian lepidophyta–explanatus (LE) miospore Zone to the Tournaisian verrucosus–incohatus (VI) miospore Zone, respectively. The paper highlights sections, which are the most representative for the Devonian–Carboniferous boundary in each region, illustrates and summarises current knowledge on the uppermost Famennian to lowermost Tournaisian in these regions, gives data and correlation of the important stratigraphic markers for each region, and briefly correlates them outside the region. The sedimentary successions and specific phenomena, together with microscale environmental perturbations, recognised close to the Devonian/Carboniferous boundary in Poland, display a pattern similar to that observed in many areas in Europe during the Hangenberg Event. Keywords Devonian–Carboniferous boundary . Poland . Biostratigraphy . Geochemistry . Rock magnetism
Introduction Previous and recent studies across the Devonian– Carboniferous boundary (DCB) interval have demonstrated several problems with its determination, resulting from the quality of the collected material and the species concept of individual researchers for the definition of this boundary (e.g. Kaiser et al. 2009; Becker et al. 2016; Corradini et al. 2017; Spalletta et al. 2017; Kaiser et al. 2019). It seems, This article is a contribution to the special issue “Global review of the Devonian-Carboniferous Boundary”. * Hanna Matyja [email protected] 1
Polish Geological Institute – National Research Institute, Rakowiecka 4, 00-975 Warsaw, Poland
2
Faculty of Natural Sciences, Institute of Earth Sciences, University of Silesia in Katowice, Będzińska 60, 41-200 Sosnowiec, Poland
therefore, that a single boundary marker selected in the future should be accompanied by alternatives such as ranges of other fossils or chemostratigraphic indices. The goal of this study is to provide a detailed documentation of important stratigraphic markers a
