Shahid Beheshti University Researches in Earth Sciences 2008-8299 7 2 2016 08 22 Reconstruction of the paleo morphometry dam lake Due to the occurrence of kabir kuh landslide (case study: jaydar lake Reconstruction of the paleo morphometry dam lake Due to the occurrence of kabir kuh landslide (case study: jaydar lake 70 87 95974 FA Journal Article 2015 05 20 Land slide event in alluvial environments as proper substrates for formation of ancient settlements, causes Environmental changes such as the formation of Daming Lake. Kabir kuh Land slide as the world's largest land slide has blocked the Kashkan River and formed Jaydar Lake. With regard to the impact of formation of Jaydar lake on the pattern of ancient habitat during the Holocene, reconstruction of morphometric characteristics of Jaydar Lake in environmental and archaeological studies is necessary. Field-analytical method and various tools such as maps geology, topography, satellite imagery, GPS and spatial analysis software, such as Arc GIS and etc are utilized to determine parameters such as size, volume of water and sediment, maximum depth, average depth, shoreline development and the stability of the lake. The results show that because of the remnants of the lake sediments, Jaydar lake area is about twice larger than what geological map and previous studies has pointed out. Also, regarding the remains of sediment on the lake, which represents 4 hot and 4 humid periods and annual sedimentation amount and thickness of sediments, it can be said that Jaydar lake lifetime has been more than 2000 years and in about 5000BC(middle Holocene) is discharged. Other parameters also indicate sustainability of the Lake in a long time in this part of the Kashkan basin Land slide event in alluvial environments as proper substrates for formation of ancient settlements, causes Environmental changes such as the formation of Daming Lake. Kabir kuh Land slide as the world's largest land slide has blocked the Kashkan River and formed Jaydar Lake. With regard to the impact of formation of Jaydar lake on the pattern of ancient habitat during the Holocene, reconstruction of morphometric characteristics of Jaydar Lake in environmental and archaeological studies is necessary. Field-analytical method and various tools such as maps geology, topography, satellite imagery, GPS and spatial analysis software, such as Arc GIS and etc are utilized to determine parameters such as size, volume of water and sediment, maximum depth, average depth, shoreline development and the stability of the lake. The results show that because of the remnants of the lake sediments, Jaydar lake area is about twice larger than what geological map and previous studies has pointed out. Also, regarding the remains of sediment on the lake, which represents 4 hot and 4 humid periods and annual sedimentation amount and thickness of sediments, it can be said that Jaydar lake lifetime has been more than 2000 years and in about 5000BC(middle Holocene) is discharged. Other parameters also indicate sustainability of the Lake in a long time in this part of the Kashkan basin https://esrj.sbu.ac.ir/article_95974_f79b771fd0ca98cf64a69115160ce93d.pdf