The barrier lakes of the Sayan-Baikal mountain region

Abstract

Classification of barrier lakes of the Sayan-Baikal mountain region has been fulfilled on the base of such attributes as location and size, genesis (the origin of dam), age. According to the morphology barrier lakes may be divided into two groups: 1) lake basins in the mountain valleys, the area doesn't exceed several km², 2) large lakes in the depressions, having the area more then 10 km². According to the dam type there are 5 classes of lakes: 1) collapselandslide, 2) moraine-dammed, 3) lava-dammed, 4) formed by tectonic antithetic fault, 5) periglacial. There are also nowaday lakes and ancient (reconstructed) ones