Mehmet Oruç Baykara
Pamukkale University
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Featured researches published by Mehmet Oruç Baykara.
Journal of the Geological Society | 2017
Andrea Brogi; Enrico Capezzuoli; Sándor Kele; Mehmet Oruç Baykara; Chuan-Chou Shen
Travertine deposits have long been considered as powerful tools for investigating neotectonics and reconstructing palaeoseismic events. We document, for the first time, the effects of overpressured hydrothermal fluids injected within travertine deposits. We also describe tectofacies interpreted as a consequence of coseismic events. Calcite veins, banded or massive, associated with hydrofracture and fluid-escape features, promoted hydrothermal eruptions and lithoclast formation in latest Quaternary travertine exposed in two quarries near Rapolano Terme (Northern Apennines, Italy). The isotopic composition of the calcite veins confirms the hydrothermal origin of the parent fluids and their rapid ascent, as indicated by the estimated palaeo-temperatures (43–50°C). Integration of U–Th ages obtained for the calcite veins with palaeoseismic evidence from a local archaeological site built at the top of one of the analysed travertine deposits suggests that hydrofracture and fluid-escape structures were associated with five main seismic events that occurred from the latest Pleistocene to the fourth century AD. In sum, the travertine tectofacies have a key role in better constraining the seismotectonic setting of a region and thus offer a powerful tool for the evaluation of seismic hazard for areas characterized by low seismicity and travertine deposition.
Environmental Archaeology | 2018
Tamer Koralay; Mehmet Oruç Baykara; Kıymet Deniz; Yusuf K. Kadioglu; Bahadır Duman; Chuan-Chou Shen
ABSTRACT The coloured stones used in buildings and monuments were an indicator of power and wealth during the ancient times. In this study, Tripolis city samples have been compared with Tripolis quarry samples in order to recognise the provenance of the banded travertine blocks in the ancient city. The banded travertine samples have similar mineral compositions and mainly consist of calcite with minor amounts of dolomite, aragonite, clay and iron oxide minerals. These results are also supported by CRS studies. Calcite is in the form of needle-shaped crystals ranging between 0.163–1.418 mm (in city) and 0.303–1.270 mm (in quarry). Tripolis banded travertine samples show the similar compositional spread in terms of major oxide, trace elements. δ13CV-PDB values of banded travertines range from 1.93 to 5.25‰ (in city) and 2.99 to 3.99‰ (in quarry), δ18OV-PDB values change between (−16.93)–(−10.08) ‰ and (−15.93)–(−13.01)‰, respectively. The U–Th radiometric ages are determined between ∼267 and 9 ka in Tripolis city samples and ∼350 and 2 ka in Tripolis quarry samples. The minero-petrographic, geochemical, C–O and U–Th isotope results fairly matched with each other. It seems highly probable that the banded travertines in Tripolis city were extracted from the Tripolis quarry, which is located at the northeast of the antique city with a distance of 3 km.
Sedimentary Geology | 2011
Sándor Kele; Mehmet Özkul; István Fórizs; Ali Gökgöz; Mehmet Oruç Baykara; Mehmet Cihat Alçiçek; Tibor Németh
Sedimentary Geology | 2013
Mehmet Özkul; Sándor Kele; Ali Gökgöz; Chuan-Chou Shen; Brian Jones; Mehmet Oruç Baykara; István Fόrizs; Tibor Németh; Yu-Wei Chang; Mehmet Cihat Alçiçek
Sedimentology | 2014
Mehmet Özkul; Ali Gökgöz; Sándor Kele; Mehmet Oruç Baykara; Chuan-Chou Shen; Yu-Wei Chang; Ali Kaya; Mete Hançer; Cİhan Aratman; Taylan Akin; Zeynep Örü
Tectonophysics | 2016
Andrea Brogi; M. Cihat Alçiçek; Cahit Çağlar Yalçıner; Enrico Capezzuoli; Domenico Liotta; Marco Meccheri; Valentina Rimondi; Giovanni Ruggieri; Anna Gandin; Chiara Boschi; Aydın Büyüksaraç; Hülya Alçiçek; Ali Bülbül; Mehmet Oruç Baykara; Chuan-Chou Shen
Tectonophysics | 2016
Gabriele Berardi; Gianluca Vignaroli; Andrea Billi; Federico Rossetti; Michele Soligo; Sándor Kele; Mehmet Oruç Baykara; Stefano M. Bernasconi; Francesca Castorina; Francesca Tecce; Chuan-Chou Shen
Central European Geology | 2011
István Fórizs; Sándor Kele; József Deák; Ali Gökgöz; Mehmet Özkul; Mehmet Oruç Baykara; Mehmet Cihat Alçiçek
Sedimentary Geology | 2018
Enrico Capezzuoli; Giovanni Ruggieri; Valentina Rimondi; Andrea Brogi; Domenico Liotta; Mehmet Cihat Alçiçek; Hülya Alçiçek; Ali Bülbül; Anna Gandin; Marco Meccheri; Chuan-Chou Shen; Mehmet Oruç Baykara
Tectonophysics | 2016
Andrea Brogi; M. Cihat Alçiçek; Cahit Çağlar Yalçıner; Enrico Capezzuoli; Domenico Liotta; Marco Meccheri; Valentina Rimondi; Giovanni Ruggieri; Anna Gandin; Chiara Boschi; Aydın Büyüksaraç; Hülya Alçiçek; Ali Bülbül; Mehmet Oruç Baykara; Chuan-Chou Shen