Facies and sedimentary environment of the carbonate-dominated Carpathian Keuper from the Tatricum domain: results from the Dolina Smytnia valley (Tatra Mts, Southern Poland)

摘要: The paper focuses on an interpretation of sedimentary and early diagenetic environment in the carbonate-dominated uppermost Ladinian-Norian succession from Tatricum domain Tatra Mountains as well its controlling factors. Limestones with cherts are product pedogenic processes, formed during long-term exposures carbonate substrate. Chalcedony were relatively diagenesis limestones. Dolostones dolomitic mudstones deposited a kind salt marshes. Pseudomorphs after sulfates absence benthic fauna indicate increased salinity intensive evaporation. Additionally, low TOC concentration suggests productivity basin. On contrary, stable isotope signals that was strongly affected by meteoric water. Moreover, 18O Sr suggest dolostones under influence both marine waters. Dolomitic could be salt-marsh fed distal sheet floods. Components palynological material organic compounds black terrestrial origin matter. regoliths result subaerial exposure karstification dolostones. Coarse-grained siliciclastics variegated mudstone interpreted, respectively, fluvial channel flood plain facies ephemeric environment. Sedimentary Keuper sediments controlled two main factors: synsedimentary tectonic movements climate changes. In latest Ladinian, Middle Triassic platform emerged, what resulted development palaeosols. Block Basin time. Horsts whereas troughs filled or marsh sediments. Intensive suggested seismic-generated slumps abrupt More chemical weathering contribution pure pluvialization late Ladinian-early Carnian domination physical indicates aridization Carnian?-Norian upper hot semi-arid conditions. Long-term changes masked short-term fluctuations. Geochemical indicators represent more humid periods, dry periods.The periods.