The origin and evolution of Iskanderkul Lake in the western Tien Shan and related geomorphic hazards

A massive rockslide, the Kchazormech, with a volume of approximately 1 km³, blocked the Iskanderdarja river valley during the Middle Holocene, leading to the formation of a large palaeolake known as Iskanderkul. This palaeolake suddenly decreased in size by 83% in volume and 65% in areal extent, releasing about 0.84 ± 0.1 km³ of water. The current Iskanderkul Lake is a remnant of this much larger palaeolake. Recent geomorphic activities, including slope movements and erosion, have led to the formation of a bypass gorge. The study also outlines current geomorphic hazards and discusses the future evolution of Iskanderkul Lake in the context of ongoing climate change, suggesting that lakes in the Tien Shan may have relatively low longevity.

Emmer, A., & Kalvoda, J. (2017). The origin and evolution of Iskanderkul Lake in the western Tien Shan and related geomorphic hazards. Geografiska Annaler: Series A, Physical Geography, 99(2), 139–154. https://doi.org/10.1080/04353676.2017.1294347