Yly Lake ( tour. Ilı Gölü - “hot lake”) is a small freshwater lake located in the northern part of the caldera of Nemrut Dag volcano on the Armenian Highlands in eastern Turkey . The lake is located at an altitude of 2247 meters above sea level, has a greatest depth of 11 m [2] .
| Lake | |
| Yly | |
|---|---|
| tour. Ilı Gölü | |
 View of Lake Yly from the east | |
| Morphometry | |
| Absolute height | 2247 [1] m |
| Deepest | 11 [2] m |
| Location | |
| A country |
|
| Silt | Bitlis |
Content
Lake Formation
About 270 thousand years ago, the next eruption of the Nemrut-Dag stratovolcano led to the gradual collapse of its cone and the formation of the caldera . The southwestern part of the caldera collapsed earlier than the others, and therefore the depth of the caldera in the southwestern part is greatest, and a freshwater lake Nemrut appeared in the formed basin. Subsequently, the lava flow of one of the small eruptions of Nemrut-Dag in the post-caldera period separated from Lake Nemrut its small northern part - Lake Yly.
Lake Features
Nutrition of the lake occurs mainly due to the hot springs associated with the volcanic activity of Nemrut Dag - the lake is located exactly on the volcano fault. In this regard, its average temperature is 10 ° C higher than it should be at the lake at such an altitude in such climatic conditions. At present, at least 4 such sources are known at the surface of the lake. Due to the shallow depth in the summer due to additional heating from the Sun, the water temperature on the surface of the lake reaches 60 ° C [2] .
Illustrations
| Lake Nemrut in the distance to the left and Lake Yly on the right | View of Lake Yly from the east | Fracture of the crust near Nemrut-Dag and the direction of lava flows |
Literature
- Maden Tetkik Bulletin of the Mineral Research and Exploration, Mineral Research and Exploration Institute of Turkey, 1966
Notes
- ↑ Özpeker I. Nemrut Yanardağinin petrojenezi // Ofset Baski Atölyesi, ITÜ Maden Fak., No. 3/14, 1973
- ↑ 1 2 3 Ulusoy İ., Labazuy Ph., Aydar E., Ersoy O., Çubukçu E. Structure of the Nemrut caldera (Eastern Anatolia, Turkey) and associated hydrothermal fluid circulation // Journal of Volcanology & Geothermal Research, Vol. 174, No 4, 2008 ( Electronic version )
Topographic maps
- Map sheet J-38-XIII .