Development of the Kembos and Eynif structural poljes: Morphotectonic evolution of the Upper Manavgat River basin, central Taurides, Turkey

Date

2017-02-01

Author

DOĞAN, UĞUR
Kocyigit, Ali
Gokkaya, Ergin

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The study area is the upper Manavgat River basin. It is located in the western part of the central Taurides. Two significant geomorphic features of this basin are the Kembos and Eynif structural poljes. This study focuses on the tectonic impacts on the development of poljes and the morphotectonic evolutionary history of the study region. The data were obtained through a detailed mapping of the faults, rocks, and geomorphic features. The evolutionary history of the basin begins with the NW-SE-trending karstic paleovalleys, which first formed on the erosional surfaces that are part of the early and middle Miocene contractional tectonic regime. The tributaries, which developed under the influence of the NW-SE-trending Pliocene strike-slip faults, joined the main trunk of the Manavgat River. Starting at the beginning of the Quaternary, the tensional tectonic regime became prominent, and then a series of graben-horst structures appeared. The Eynif and Kembos poljes formed within two of these structures. The underground capture of surface water occurred in the grabens. The waters of both poljes drain through swallow holes into the Manavgat River and then in to the Mediterranean Sea. The regional uplift rates (the downcutting rates) are as follows: 0.36 mm/y in the late Miocene (Tortonian-Messinian), 0.06 mm/y in the Pliocene, and 0.18 mm/y in the Quaternary periods, which are based on the geopmorphic data obtained from high erosional surfaces and the Manavgat River valley. The average downcutting/uplift rate is 0.18 mm/y in this region.

Subject Keywords

Uplift rate, Tensional tectonic regime, Paleo-valley, Polje, Manavgat River, Central Taurides

URI

https://hdl.handle.net/11511/66293

Journal

GEOMORPHOLOGY

DOI

https://doi.org/10.1016/j.geomorph.2016.10.030

Collections

Department of Geological Engineering, Article

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Citation Formats

U. DOĞAN, A. Kocyigit, and E. Gokkaya, “Development of the Kembos and Eynif structural poljes: Morphotectonic evolution of the Upper Manavgat River basin, central Taurides, Turkey,” GEOMORPHOLOGY, pp. 105–120, 2017, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66293.