Özet:

There are mountains that have traces of Quaternary glaciations in western Taurus mountain range, southwestern Turkey. As one of the glaciated mountains in this range, multiple glaciations occurred on Mount Dedegöl (2992 m) during cold periods of Quaternary. In this study, it has been aimed to specify glacial geomorphology of Mount Dedegöl, determine factors having affected glaciations, define extent of former glaciers, elevation line altitude of former glaciers, glaciation periods and paleoclimate features of Mount Dedegöl. To achieve this aims, we used geographic information systems and carried out field work, morphometric analysis, physically-based glacier modeling, OSL dating methods and paleoclimate modellings. Topographically controlled mountain glaciations occurred on Mount Dedegöl. Those glaciations left behind glacial landforms such as glacial valleys, cirques, arêtes, horns, roches moutonnees, scoured and polished surfaces, glacial striea, different kind of moraine deposits and an outwash plain. Glaciations and their relevant landforms have been affected by karst, tectonic and periglacial processes and the landscape transformed to create complex and intricate landforms. Within the framework of the data collected from glacial reconstruction have revealed that the ELA was 2230 m, the glaciers covered an area of 21 km², glacier lobs descended down around the altitude of 1500 m and their lengths exceeded 7 km. Moraine deposits were processed with OSL dating method to obtain timing of glaciation and the results indicated evidence of multiple glacier advances. In the cold periods of Quaternary, colder and wetter climate conditions prevailed on Mount Dedegöl, and temperatures in these periods were approximately 10-11ºC lower than those of today.Keywords: Glacial geomorphology, Quaternary glaciations, Mount Dedegöl, glacial reconstruction.

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