Abstract
Upper Jurassic–lower Cretaceous carbonates (Berdiga Fm.) are widely exposed in the NE Turkey. An integrated study of sedimentological and geochemical analysis was carried out on the lower Cretaceous carbonates of Berdiga Fm. in Trabzon area in order to reveal the paleoenvironmental and paleoclimatological conditions of northern Tethyan Ocean. Three microfacies types were identified corresponding to inner to slope environments. Inner platform environment developed during the Hauterivian–Aptian interval. End of the Aptian, syn-sedimentary extensional tectonic regime might probably have caused the progressive deepening of the environment, so the inner platform environment evolved into an outer platform and then into slope during the late Aptian–Albian time. Additionally, δ18O stable isotope values of the belemnites of studied section indicate that paleotemperature ranged between 25 and 26 °C during Aptian–Albian interval. Therefore warm Cretaceous climate conditions were recorded in the Eastern Pontides.
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Acknowledgements
The authors would like to thank Karadeniz Technical University (Project no.: FBA-2015-5160) and TUBİTAK (ÇAYDAG, Project no.: 115Y005 and International PhD Research Scholarship Program-2214-A-BIDEP) for their financial support. The authors wish to thank Prof. Dr. Ihsan Al-Aasm (University of Windsor, Canada) for his support and Prof. Dr. Kemal TASLI (Mersin University, Turkey) for the foraminifera determinations.
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Özyurt, M., Ziya Kirmaci, M., Ömer Yılmaz, İ., Kandemir, R. (2019). Sedimentological and Geochemical Records of Lower Cretaceous Carbonate Successions Around Trabzon (NE Turkey): Implications for Paleoenvironmental Evolution and Paleoclimatological Conditions of Tethys. In: Zhang, Z., Khélifi, N., Mezghani, A., Heggy, E. (eds) Patterns and Mechanisms of Climate, Paleoclimate and Paleoenvironmental Changes from Low-Latitude Regions. CAJG 2018. Advances in Science, Technology & Innovation. Springer, Cham. https://doi.org/10.1007/978-3-030-01599-2_5
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DOI: https://doi.org/10.1007/978-3-030-01599-2_5
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