Miocene Tuffs from the Dinarides and Eastern Alps as Proxies of the Pannonian Basin Lithosphere Dynamics and Tropospheric Circulation Patterns in Central Europe

2021 ◽  
pp. jgs2020-262
Author(s):  
Luka Badurina ◽  
Branimir Šegvić ◽  
Oleg Mandic ◽  
Damir Slovenec

Tuffaceous layers are regularly preserved in Miocene carbonate and siliciclastic sediments of the Dinarides and Eastern Alps in southeastern and central Europe. Detailed mineralogical and geochemical analyses of 13 tuffs of known ages acquired from sedimentary successions of the intramontane Dinarides basins and the southwestern Pannonian Basin were carried out to infer on plausible source areas, relative strengths of volcanism, and ash distribution patterns. Studied tuffs were altered to various degrees with illite-smectite and smectite as dominant phases while volcanic glass, carbonates, and other silicates are minor constituents. Tuffs’ compositions range from andesite through trachyandesite to rhyolite and trachyte. Trace-element based correlation with regional data reveal that lower (LM) and lower middle Miocene (LMM) tuffs (17.0-14.0 Ma) likely originated in the Western Carpathians (the Bükkalja volcanic field) while source areas of upper middle Miocene (UMM) tuffs (13.8-12.5 Ma) were in the Apuseni Mountains and/or Eastern Carpathians. The spatial relation of LM/LMM and UMM tuffs with respect to their source areas (Bükkalja and Apuseni Mountains, respectively) is most consistent with tropospheric easterly trade winds that carried ash hundreds of kilometres to the south-west toward an azimuth of ∼200-250°.Supplementary material: Annotated X-ray diffractograms of the global and clay fraction of studied tuffs and AFM classification diagram are available at https://doi.org/10.6084/m9.figshare.c.5429592

2006 ◽  
Vol 25 (2) ◽  
pp. 113-139 ◽  
Author(s):  
Gonzalo Jiménez-Moreno ◽  
Martin J. Head ◽  
Mathias Harzhauser

Abstract. Marine organic-walled dinoflagellate cysts have been studied from the Early and Middle Miocene of the Central Paratethys in Austria (Vienna and eastern Alpine Foreland basins) and Hungary (Pannonian Basin), and compared with assemblages of similar age from the Atlantic Ocean and Mediterranean Sea. The presence of a diverse flora of 71 taxa, including such biostratigraphical markers as Apteodinium spiridoides, Cerebrocysta poulsenii, Cordosphaeridium cantharellus, Cribroperidinium tenuitabulatum, Exochosphaeridium insigne, Glaphyrocysta reticulosa s.l., Habibacysta tectata, Labyrinthodinium truncatum subsp. truncatum, Palaeocystodinium miocaenicum, and Unipontidinium aquaeductus, has allowed the establishment of five biozones that characterize the Ottnangian, Badenian and Sarmatian local stages (collectively equivalent to the mid-Burdigalian, upper Langhian and Serravallian stages). This is the first study to demonstrate the applicability of dinoflagellate cysts for detailed stratigraphic correlation and palaeoenvironmental interpretation in the Early and Middle Miocene of the Central Paratethys area.


2019 ◽  
Vol 172 ◽  
pp. 374-395 ◽  
Author(s):  
Oleg Mandic ◽  
Karin Sant ◽  
Mădălina-Elena Kallanxhi ◽  
Stjepan Ćorić ◽  
Dörte Theobalt ◽  
...  

2015 ◽  
Vol 54 (3) ◽  
pp. 658-670 ◽  
Author(s):  
Jenny Lindén ◽  
Jan Esper ◽  
Björn Holmer

AbstractUrban areas are believed to affect temperature readings, thereby biasing the estimation of twentieth-century warming at regional to global scales. The precise effect of changes in the surroundings of meteorological stations, particularly gradual changes due to urban growth, is difficult to determine. In this paper, data from 10 temperature stations within 15 km of the city of Mainz (Germany) over a period of 842 days are examined to assess the connection between temperature and the properties of the station surroundings, considering (i) built/paved area surface coverage, (ii) population, and (iii) night light intensity. These properties were examined in circles with increasing radii from the stations to identify the most influential source areas. Daily maximum temperatures Tmax, as well as daily average temperatures, are shown to be significantly influenced by elevation and were adjusted before the analysis of anthropogenic surroundings, whereas daily minimum temperatures Tmin were not. Significant correlations (p < 0.1) between temperature and all examined properties of station surroundings up to 1000 m are found, but the effects are diminished at larger distance. Other factors, such as slope and topographic position (e.g., hollows), were important, especially to Tmin. Therefore, properties of station surroundings up to 1000 m from the stations are most suitable for the assessment of potential urban influence on Tmax and Tmin in the temperate zone of central Europe.


2018 ◽  
Vol 31 (2) ◽  
pp. 380-404 ◽  
Author(s):  
Attila Petrik ◽  
László Fodor ◽  
László Bereczki ◽  
Zsombor Klembala ◽  
Réka Lukács ◽  
...  

Author(s):  
Carolin Kiefer ◽  
Patrick Oswald ◽  
Jasper Moernaut ◽  
Stefano Claudio Fabbri ◽  
Christoph Mayr ◽  
...  

2021 ◽  
Author(s):  
Orsolya Gelencsér ◽  
Zsuzsanna Szabó-Krausz ◽  
László Mika ◽  
Daniel Breitner ◽  
Tibor Németh ◽  
...  

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