Journals / Turkish Journal of Earth Sciences / 2015 / Cilt: 24 - Sayı: 1

Evidence of an active glacier in the Munzur Mountains, eastern Turkey

Pages
56–71
Publication Date
2015-03-15
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The Munzur Mountains, which extend in an east-westerly direction in the manner of a 100-km wall and have summits surpassing 3000 m, allow for significant snow accumulation.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The Munzur Mountains were subjected to extensive and repeated glaciations during the Pleistocene.
📊
Key Findings & Data:We named this glacier the Şahintaşı Glacier and studied it using 3D ArcGIS spatial analyses overlaid on high-resolution Geographical Information Systems (GIS) satellite images.
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Conclusion & Impact:The Munzur Mountains, which extend in an east-westerly direction in the manner of a 100-km wall and have summits surpassing 3000 m, allow for significant snow accumulation.
🔬Design:Research Article
📍Scope:2013 Verileri
⚙️Variables:Munzur Mountains · Şahintaşı Glacier · Pleistocene glaciations

Abstract

The Munzur Mountains were subjected to extensive and repeated glaciations during the Pleistocene. The presence of an active glacier in the region was not verified until this study. Here, we used remote sensing methods to identify and locate the glaciers and verified the activity of the largest glacier in the field. We named this glacier the Şahintaşı Glacier and studied it using 3D ArcGIS spatial analyses overlaid on high-resolution Geographical Information Systems (GIS) satellite images. The most current version of LANDSAT 8 (acquired on 14.08.2013) supplied the remote sensing information. We used principal component analysis on the data. The precise areas where glaciers might be located were plotted. The data collection provided critical information to formulate an accurate representation of the Şahintaşı Glacier. The glacier dimensions are significant. It has a total area of 104,587 ± 10,458 m2, with a length of 410 m, a width of 386 m, and an estimated maximum thickness of 90 ± 10 m. In the fore field, we identified 4 well-preserved terminal moraines. These moraines are remarkable in that the processes of their initial formation are immediately visible. The morphological properties of the cirque (its closure or high circularity, aspect, steepness, and near vertical walls), the high altitude, and the north-facing orientation are unique circumstances that have cumulatively helped preserve the Şahintaşı Glacier. The lithostratigraphic structure has had a large influence on the depth and circularity of the cirques. In the central section of the mountains, where the limestone is thicker, karstic development occurred vertically during the preglacial period, forming deep dolines that created steep-walled cirques and helped the glaciers survive until today. In addition, the mountains that are under the influence of northerly cold air masses in winter experience significant snowfall due to convective instability. The Munzur Mountains, which extend in an east-westerly direction in the manner of a 100-km wall and have summits surpassing 3000 m, allow for significant snow accumulation.

Özet

The Munzur Mountains were subjected to extensive and repeated glaciations during the Pleistocene. The presence of an active glacier in the region was not verified until this study. Here, we used remote sensing methods to identify and locate the glaciers and verified the activity of the largest glacier in the field. We named this glacier the Şahintaşı Glacier and studied it using 3D ArcGIS spatial analyses overlaid on high-resolution Geographical Information Systems (GIS) satellite images. The most current version of LANDSAT 8 (acquired on 14.08.2013) supplied the remote sensing information. We used principal component analysis on the data. The precise areas where glaciers might be located were plotted. The data collection provided critical information to formulate an accurate representation of the Şahintaşı Glacier. The glacier dimensions are significant. It has a total area of 104,587 ± 10,458 m2, with a length of 410 m, a width of 386 m, and an estimated maximum thickness of 90 ± 10 m. In the fore field, we identified 4 well-preserved terminal moraines. These moraines are remarkable in that the processes of their initial formation are immediately visible. The morphological properties of the cirque (its closure or high circularity, aspect, steepness, and near vertical walls), the high altitude, and the north-facing orientation are unique circumstances that have cumulatively helped preserve the Şahintaşı Glacier. The lithostratigraphic structure has had a large influence on the depth and circularity of the cirques. In the central section of the mountains, where the limestone is thicker, karstic development occurred vertically during the preglacial period, forming deep dolines that created steep-walled cirques and helped the glaciers survive until today. In addition, the mountains that are under the influence of northerly cold air masses in winter experience significant snowfall due to convective instability. The Munzur Mountains, which extend in an east-westerly direction in the manner of a 100-km wall and have summits surpassing 3000 m, allow for significant snow accumulation.

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Cite This Article

BAYRAKDAR, C., ÇILĞIN, Z., DÖKER, M. F., CANPOLAT, E. (2015). Evidence of an active glacier in the Munzur Mountains, eastern Turkey. Turkish Journal of Earth Sciences, Cilt: 24 - Sayı: 1, 56–71. https://ajindex.com/articles/202128

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References (8)

  1. Akçar N, Schlüchter C (2005) Paleoglaciations in Anatolia: a schematic review and first results. Eiszeitalter und Gegenwart 55: 102–121.
  2. Akçar N, Yavuz V, Ivy-Ochs S, Kubik PW, Vardar M, Schlüchter C (2008). A case for a downwasting mountain glacier during Termination I, Verçenik Valley, northeastern Turkey. J Quaternary Sci 23: 273–285.
  3. Atalay İ (1987).
  4. Türkiye jeomorfolojine giriş. İzmir, Turkey: Ege University (in Turkish). Bayrakdar C (2012). Akdağ Kütlesi’nde (Batı Toroslar) karstlaşma- buzul ilişkisinin jeomorfolojik analizi. PhD, İstanbul University, İstanbul, Turkey (in Turkish). Bilgin T (1969). Gavur Dağı kütlesinde glasyal ve periglasiyal topografya şekilleri. İstanbul, Turkey: İÜ Coğrafya Enstitüsü (in Turkish). Bilgin T (1972). Munzur Dağlarının doğu kısmının glasyal ve periglasyal morfoloji. İstanbul, Turkey: İÜ Coğrafya Enstitüsü (in Turkish). Çılğın Z (2013). The influence of glacıatıon on the geomorphology of Ovacık Plain (Tunceli) and southwest catchment of Munzur Mountaın. Kilis 7 Aralık Üniversitesi Sosyal Bilimler Dergisi 6: 103–121 (in Turkish with English abstract). Çılğın Z, Bayrakdar C, Oliphant JS (2014). An example of polygenetic geomorphologic development (karst-glacial-tectonics) on Munzur Mountains: Kepir Cave-Elbaba Spring karstic system. Int J Hum Sci 11: 89–104.
  5. Çiner A (2003). Recent glaciers and late quaternary glacial deposits of Turkey. Geological Bulletin of Turkey 46: 55–78.
  6. Doğu AF, Somuncu M, Çiçek İ, Tunçel H, Gürgen G (1993). Kaçkar Dağında buzul şekilleri, yaylalar ve turizm. AÜ Türkiye Coğrafyası Dergisi 2: 157–184 (in Turkish). Erinç S (1945). Doğu Karadeniz Dağlarında glasyal morfoloji araştırmaları. İstanbul, Turkey: İstanbul University (in Turkish). Erinç S (1951). Glasiyal ve postglasiyal safhada Erciyes glasiyesi. İstanbul Üniversitesi Coğrafya Enstitüsü Dergisi 1: 82–90 (in Turkish). Erinç S (1952). The present day glaciation in Turkey. In: 8th General Assembly and 17th International Congress of the International Geographical Union, Proceedings. Washington, DC, USA: International Geographical Union, pp. 326–330.
  7. Erinç S (1953). Van’dan Cilo Dağlarına. İstanbul Üniversitesi Coğrafya Enstitüsü Dergisi 2: 84–106 (in Turkish). Erinç S (1971).
  8. Jeomorfoloji II. İstanbul, Turkey: İstanbul Üniversitesi Coğrafya Enstitüsü (in Turkish). Faust N (1989). “Image Enhancement.” Volume 20, Supplement 5 of the Encyclopedia of Computer Science and Technology. New York, NY, USA: Marcel Dekker. Gao J, Liu Y (2001). Applicat