Çilgin, Zeynel; Bayrakdar, Cihan

This study investigates the morphometric characteristics of 30 glacial cirques developed on Mount Dedegol (2992 m) in the western Taurus mountain belt of southwestern Turkey. The elevation, slope, size, and shape characteristics of the cirques are analyzed and classifieded according to their developmental stages based on morphometric parameters. The development of cirques and their distinctive features are basically due to the pre-glacial topography, elevation, and aspect, and partly due to the local tectonic and geological structures. Nearly three-quarter of the cirques (73.3%) were developed in the N, NE, and NW aspects, which area less exposed to solar radiation. The average floor altitude of the cirques is 2543 m, and on the north-facing slopes, the cirques grew at lower elevations. From the morphometric measurements of the cirques, their mean length, width, and area are 600 m, 534 m, and 0.27 km(2) , respectively, revealing that the lengths of most cirques are slightly larger than the corresponding widths. The cirques have distinctive features regarding forms, as they exist as troughs or simple, staircase, or compound cirques, and they are located at the head or slopes of the glacial valleys, or on an area isolated from the valley. We assessed and classified the cirques according to their developmental stages. The assessment results show that there are 11 well-developed cirques in the mountain and the remaining 19 are either moderately or poorly developed. The evaluation also shows that at the onset of the glaciations, the appropriately located cirques developed into mature cirques because of the facilitative environment.

AtıfWoS4·OpenAlex8

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Bayrakdar, Cihan; Çilgin, Zeynel; Saris, Faize

Karadag is one of the mountains subjected to the Pleistocene glaciations in the Teke Peninsula (Western Taurus) along with Beydaglari, Akdag, and Sandiras Mountains. Karadag, which reaches 2418 m summit at a 30 km straight distance from the northeast of Fethiye Bay, has many peaks over 2300 m. There are plenty of glacial researches and dating studies aim to reveal Pleistocene glaciation chronology of the mountains such as Sandiras and Akdag in the Teke Peninsula. On the other hand, glaciations in Beydaglari were mentioned superficially and in general terms. Lastly, there has not been known any glaciation phenomenon in Karadag, in other words there are not any studies concerning the glaciation on the mountain. However, Karadag has distinctive cirques and moraines on the slopes of high elevations near the peak. In this study, we identified glacial valleys, cirques developed in different sizes and aspects and lastly frontal and hummocky moraines in front of these cirques. They are descending to the elevation of 1800 m. With this study, a new glacial area was identified in Turkey and made a contribution to the glaciation inventory of Turkey. This study aims to reveal the geomorphological and climatological characteristics of this area with regard to tectonic, climatic and karstic characteristics during Pleistocene. Maps and relevant outputs were created and analyzed by geographic information systems using the spatial data obtained from the field studies, unmanned aerial vehicles and meteorological stations.

AtıfWoS8·OpenAlex13

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