1- 1University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia
- 2Jagiellonian University, Faculty of Geography and Geology, Institute of Geological Sciences, Kraków, Poland
- 3Paleontološki Inštitut Ivana Rakovca ZRC SAZU, Ljubljana, Slovenia
- 4Comenius University, Faculty of Natural Sciences, Department of Geology and Palaeontology, Bratislava, Slovakia
- 5Montanuniversität Leoben, Department for Applied Geosciences and Geophysics, Energy Geosciences, Leoben, Austria
The Jurassic–Early Cretaceous successions of the Danubian Unit in the Carpatho-Balkanides, studied in three structurally superposed sections in the Danube River valley (Djerić et al. 2026), record the evolution of the southern passive margin of the Alpine Atlantic domain. Integrated sedimentological, biostratigraphic and chemostratigraphic constraints document an evolutionary progression from Early-to-early Middle Jurassic syn-rift extension and subsidence, through Bajocian–Oxfordian tectonic quiescence, to the Late Oxfordian–Kimmeridgian onset of a Štramberk-type carbonate platform. The Lower Jurassic–Bajocian interval records a continental to shallow-marine transgression linked to early rifting of the easternmost Alpine Atlantic domain. Continental break-up and syn-rift differential subsidence led to the establishment of a horst-and-graben system marked by condensed Rosso Ammonitico deposition on structural highs and accumulation of thick radiolaritic basinal successions. Bajocian–Oxfordian tectonic quiescence was followed by the Late Oxfordian–Kimmeridgian development of Štramberk-type carbonate platforms that prograded basinward until the early Late Tithonian. Calcareous turbidites reached proximal basinal settings during the Late Oxfordian, whereas distal areas remained carbonate-starved until the Tithonian, when episodic platform-derived mass-transport deposits were transported into the basin. During the Berriasian–Valanginian, Biancone-type hemipelagic limestones blanketed the entire region, reflecting the stabilization of outer-shelf to basinal conditions across the former horst-and-graben topography.
Regional correlation with coeval successions in Romania (Southern Carpathians), Tisza, the Western Carpathians, the Southern and Eastern Alps, and the Apennines demonstrates the coherence of the Danubian Unit as part of the southern Alpine Atlantic passive margin, refining existing Mesozoic palaeogeographic interpretations of the Alpine–Carpathian realm.
Reference
Djerić N., Jach R., Goričan Š., Reháková D., Uchman A., Gawlick H.-J., Schlögl J. & Stojadinović U. 2026. Jurassic – Early Cretaceous depositional history of the Alpine Atlantic southern passive margin: Inferences from the Serbian Carpathians. Global and Planetary Change, 259: 105372. https://doi.org/10.1016/j.gloplacha.2026.105372.
How to cite: Djeric, N., Jach, R., Goričan, Š., Reháková, D., Uchman, A., Gawlick, H.-J., Schlögl, J., and Stojadinovic, U.: Biostratigraphy, chemostratigraphy, and facies evolution of the easternmost Alpine Atlantic realm (Southern Carpathians, eastern Serbia), 17th EGU Émile Argand Conference on Alpine Geological Studies, Fruška Gora, Serbia, 14–16 Sep 2026, alpshop2026-13, https://doi.org/10.5194/egusphere-alpshop2026-13, 2026.
