A chain of carbonate platforms evolved in the northern Neo-Tethys during the Late Jurassic, but current knowledge remains incomplete as long as data from several larger regions, such as the Western Caucasus, are not included. In order to fill this gap, it is here suggested to reconsider the information accumulated chiefly during Soviet times. Although these data are too general, they still matter with regard to some regional characteristics and tentative interpretations. Available data on the spatio-temporal distribution of Bajocian-Callovian sedimentary rocks are summarised in a novel way which permits documentation of depositional trends at six representative localities in the Western Caucasus. The extent of the carbonate platform increased at two localities since the Late Callovian and at a third since the Middle Oxfordian. Three additional sites were characterised either by non-deposition or deep-marine sedimentation. The onset of carbonate platform development marked a remarkable shift from chiefly siliciclastic to carbonate deposition, although this event was not sudden everywhere. The Bathonian pulse of tectonic activity, coupled with the eustatic sea level rise, allowed shelves to expand during the Callovian-Oxfordian, with a reduction in siliciclastic input from islands and sea-water that became well oxygenated and warmer. These conditions were conducive to biogenic carbonate production, allowing the carbonate platform to expand subsequently.
Paweł Przepióra, Tomasz Kalicki, Michał Aksamit, Piotr Biesaga, Marcin Frączek, Paulina Grzeszczyk, Emanuela Malęga, Mariusz Chrabąszcz, Edyta Kłusakiewicz and Piotr Kusztal
. Hydromorfologiczne uwarunkowania funkcjonowania geoekosystemu Zbiornika Włocławskiego [Hydromorphological conditions of the functioning of the Włocławek Reservoir geo-ecosystem]. Instytut Geografii i Przestrzennego Zagospodarowania PAN, Warszawa, 224 pp.
Gilbert, G.K., 1885. The topographic features of lake shores . US Government Printing Office.
Gobo, K., 2014. Development of Gilbert-type deltas: sedimentological case studies from the Plio-Pleistocene of Corinth Rift, Greece . Faculty of Mathematics and Natural Sciences University of Bergen, 16 pp.
. & Alhonen, P., 1996. The development of a late Weichselian – early Holocene subaqueous ice-contact fan, Teikangas, SW Finland. Bulletin of the Geological Society of Finland 68, 34–49.
Lüthgens, C., Böse, M. & Preussner, F., 2011. Age of the Pomeranian ice marginal position in northeastern Germany determined by Optically Stimulated Luminescence (OSL) dating of glaciofluvial sediments. Boreas 40, 598–615.
Marcinkowski, B. & Mycielska-Dowgiałło, E., 2013. Heavy-mineral analysis in Polish investigations of Quaternary deposits: a review. Geologos 19, 5
Asghar Etesampour, Asadollah Mahboubi, Reza Moussavi-Harami, Nasser Arzani and Mohammad Ali Salehi
Tortosa, A., Palomares, M. and Arribas, J., 1991. Quartz grain types in Holocene deposits from the Spanish Central System: some problems in provenance analysis. In : A.C. Morton, S.P. Todd, and P.D.W. Huaghton (eds.), Development in Sedimentary Provenance Studies. Geological Society, London, Special Publications. Geological Society, London, 57, pp. 47–54. https://doi.org/10.1144/GSL.SP.1991.057.01.05
Weltje, G. J., Meij, X. D. and De Boer, P. L., 1998. Straiti-graphic inversion of siliciclastic basin
Northern Calcareous Alps during Triassic times. In: Flügel, H.W., Faupl, P. (Eds.), Geodynamics of the Eastern Alps. Deuticke, Wien, 85–102.
Leitner, C., Spötl, C., 2017. Chapter 21 - The Eastern Alps: Multistage Development of Extremely Deformed Evaporites. In: Soto, J.I., Flinch, J.F., Tari, G. (Eds.), Permo-Triassic Salt Provinces of Europe, North Africa and the Atlantic Margins. Elsevier, 467–482.
Loesch, K.C.v., 1915. Der Schollenbau im Wetterstein- und Mieminger- Gebirge. Jahrbuch der k. k. Geologischen Reichsanstalt, 64 (1914), 1–98.
-Świder-ska (Eds): Katalog obiektów geoturystycznych w Polsce . Wydawnictwo Akademii Górniczo-Hutniczej, Kraków, 158–159.
Malata, T. & Poprawa, P., 2006. Evolution of the Skole Subbasin. [In:] N. Oszczypko, A. Uchman & E. Malata (Eds): Rozwój Paleotektoniczny Basenów Karpat Zewnętrznych i Pienińskiego Pasa Skałkowego . Instytut Nauk Geologicznych Uniwersytetu Jagiellońskiego, Kraków, 103–110.
Mange, M.A. & Morton, A.C., 2007. Geochemistry of heavy minerals. [In:] M.A. Mange & D.T. Wright (Eds): Heavy Minerals in Use . Developments in Sedimentology 58, 345
Erich Draganits, Susanne Gier, Nives Doneus and Michael Doneus
Heritage. Midsea Books, Santa Venera, 359 pp.
Bronk Ramsey, C., 2009. Bayesian analysis of radiocarbon dates. Radiocarbon, 51/1, 337–360. https://doi.org/10.1017/S0033822200033865
Brunović, D., Miko, S., Hasan, O., Ilijanić, N., Papatheodorou, G., Christodoulou, D., Geraga, M., Dumbir, A.M., Razum, I., Hajek, Tadesse, V., Bakrač, K. and Šparica Miko, M., 2017. The Late Quaternary palaeoenvironmental development of Lošinj Channel, Adriatic Sea. 5 th Regional Scientific Meeting on Quaternary Geology dedicated to Geohazards, 9–10 November 2017, Starigrad
the Brahmaputra River, Bangladesh. [In] Best, J. L. & Bristow, C. S. (Eds), Braided rivers. Geological Society, Special Publication 75, 277-289.
Church, M., 1972. Baffin Island sandurs: a study of Arctic fluvial processes. Bulletin of the Geological Survey of Canada 216, 1-208.
Dawson, M. R. & Bryant, I. D., 1987. Three-dimensional facies geometry in Pleistocene outwash sediments, Worcestershire, U. K. [In:] Ethridge, F. G. (Ed.), Recent developments in fluvial sedimentology. Society of Economic
Available reconstructions of Jurassic global sea level changes differ and are in need of an update. New stratigraphical charts and palaeogeographical developments for a number of large continental blocks or their portions of these (e.g., Germany, India, northeast Africa, northwest Australia, the Russian Platform and western Siberia) reveal regional long-term shoreline shifts (i.e., transgressions and regressions) during the Bajocian Stage (168.3–170.3 Ma). A comparison of these allows to document only a single coherent feature, namely the earliest Bajocian transgression, in the majority of the continental blocks considered. Undoubtedly, this event was triggered by a eustatic rise. However, long-term shoreline shifts were either weak to absent or differed between the blocks during almost the entire Bajocian, thus providing evidence of the apparent stability of global sea level and the importance of regional tectonic activity as a control mechanism on particular transgressions and regressions. Interestingly, it appears that the earliest Bajocian eustatic rise was a constituent of a long-term eustatic pattern; the nature of this event has yet to be fully understood. Generally, the findings presented here are in better agreement with Anthony Hallam’s view of Jurassic eustasy and question some other global sea level reconstructions.